P. Bareyre

Publication List Details

Period

1973 - 2009

Number

233

Co-Authors

New Magellanic Cloud R Coronae Borealis and DY Per type stars from the EROS-2 database: the connection between RCBs, DYPers and ordinary carbon stars (2009)

Tisserand, P., Wood, P. R., Marquette, J. B., Afonso, C., Albert, J. N., Andersen, J., ...

R Coronae Borealis stars (RCB) are a rare type of evolved carbon-rich supergiant stars that are increasingly thought to result from the merger of two white dwarfs, called the Double degenerate...

The EROS2 search for microlensing events towards the spiral arms: the complete seven season results (2009)

Rahal, Y. R., Afonso, C., Andersen, J., Ansari, R., Aubourg, E., ...

The EROS-2 project has been designed to search for microlensing events towards any dense stellar field. The densest parts of the Galactic spiral arms have been monitored to maximize the microlensing...

The beat Cepheids in the Magellanic Clouds: an analysis from the EROS-2 database (2009)

Marquette, J. B., Beaulieu, J. P., Buchler, J. R., Szabo, R., Tisserand, P., Belghith, S., ...

A number of microlensing dark-matter surveys have produced tens of millions of light curves of individual background stars. These data provide an unprecedented opportunity for systematic studies of...

The EROS2 search for microlensing events towards the spiral arms: the complete seven season results (2009)

Rahal, Y.R., Afonso, C., Andersen, J., Ansari, R., Aubourg, E., ...

the EROS-2 project has been designed to search for microlensing events towards any dense stellar field. The densest parts of the Galactic spiral arms have been monitored to maximize the microlensing...

The EROS2 search for microlensing events towards the spiral arms: the complete seven season results (2009)

Rahal, Y.R., Afonso, C., Andersen, J., Ansari, R., Aubourg, E., ...

the EROS-2 project has been designed to search for microlensing events towards any dense stellar field. The densest parts of the Galactic spiral arms have been monitored to maximize the microlensing...

The EROS2 search for microlensing events towards the spiral arms: the complete seven season results (2009)

Rahal, Y.R., Afonso, C., Andersen, J., Ansari, R., Aubourg, E., ...

the EROS-2 project has been designed to search for microlensing events towards any dense stellar field. The densest parts of the Galactic spiral arms have been monitored to maximize the microlensing...

Discovery of a peculiar Cepheid-like star towards the northern edge of the Small Magellanic Cloud (2008)

Marquette, J. B., Tisserand, P., Francois, P., Beaulieu, J. P., Doublier, V., Lesquoy, E., ...

For seven years, the EROS-2 project obtained a mass of photometric data on variable stars. We present a peculiar Cepheid-like star, in the direction of the Small Magellanic Cloud, which demonstrates...

R Coronae Borealis stars in the Galactic Bulge discovered by EROS-2 (2008)

Tisserand, P., Marquette, J. B., Wood, P. R., Lesquoy, E., Beaulieu, J. P., Milsztajn, A., ...

Rare types of variable star may give unique insight into short-lived stages of stellar evolution. The systematic monitoring of millions of stars and advanced light curve analysis techniques of...

Microlensing towards the Small Magellanic Cloud EROS 2: first year survey (2007)

Microlensing Small, Magellanic Cloud, N. Palanque-Delabrouille, C. Afonso, J. N. Albert, J. Andersen, ...

. We present here an analysis of the light curves of 5.3 million stars in the Small Magellanic Cloud observed by EROS (Exp'erience de Recherche d'Objets Sombres). One star exhibits a...

Astronomy And Astrophysics (2007)

Eros Intensive, C. Afonso, C. Alard, J. Andersen, R. Ansari, E. Aubourg, ...

. We report on intensive photometric monitoring on 18 June 1998 of MACHO SMC-98-1, a binarylens microlensing event seen toward the Small Magellanic Cloud (SMC). The observations cover 5.3 hours (UT...

AGAPEROS: Searches for microlensing in the LMC with the Pixel Method (2007)

Ii Selection, C. Afonso, R. Ansari, E. Aubourg, P. Baillon, ...

. We apply the pixel method of analysis (sometimes called "pixel lensing") to a small subset of the EROS1 microlensing observations of the bar of the Large Magellanic Cloud (LMC). The pixel...

AGAPEROS: Searches for microlensing in the LMC with the Pixel Method (2007)

Data Treatment, C. Afonso, R. Ansari, E. Aubourg, P. Baillon, ...

. The presence and abundance of MAssive Compact Halo Objects (MACHOs) towards the Large Magellanic Cloud (LMC) can be studied with microlensing searches. The 10 events detected by the EROS and MACHO...

EROS and MACHO Combined Limits on Planetary Mass Dark Matter in the Galactic Halo (2007)

Alcock Allsman, C. Alcock, R. A. Allsman, D. Alves, R. Ansari, E. Aubourg, ...

The EROS and MACHO collaborations have each published upper limits on the amount of planetary mass dark matter in the Galactic Halo obtained from gravitational microlensing searches. In this paper...

Galactic bulge microlensing optical depth from eros-2 (2007)

Hamadache, C., Le Guillou, L., Tisserand, P., Afonso, C., Albert, J.N., Andersen, J., ...

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were...

The OGLE-II event sc5_2859 : a Classical Nova outburst? (2007)

Afonso, C., Glicenstein, J.F., Gould, A., Smith, M.C, Albert, J.N., Andersen, J., ...

The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets...

Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds. (2007)

Tisserand, P., Le Guillou, L., Afonso, C., Albert, J.N., Andersen, J., Ansari, R., ...

The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ``machos'') could be a major component of the dark matter halo of the Milky Way galaxy. To this...

The OGLE-II event sc5_2859 : a Classical Nova outburst? (2007)

Afonso, C., Glicenstein, J.F., Gould, A., Smith, M.C, Albert, J.N., Andersen, J., ...

The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets...

Galactic bulge microlensing optical depth from eros-2 (2007)

Hamadache, C., Le Guillou, L., Tisserand, P., Afonso, C., Albert, J.N., Andersen, J., ...

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were...

Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds. (2007)

Tisserand, P., Le Guillou, L., Afonso, C., Albert, J.N., Andersen, J., Ansari, R., ...

The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ``machos'') could be a major component of the dark matter halo of the Milky Way galaxy. To this...

The OGLE-II event sc5_2859 : a Classical Nova outburst? (2007)

Afonso, C., Glicenstein, J.F., Gould, A., Smith, M.C, Albert, J.N., Andersen, J., ...

The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets...

Galactic bulge microlensing optical depth from eros-2 (2007)

Hamadache, C., Le Guillou, L., Tisserand, P., Afonso, C., Albert, J.N., Andersen, J., ...

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were...

Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds. (2007)

Tisserand, P., Le Guillou, L., Afonso, C., Albert, J.N., Andersen, J., Ansari, R., ...

The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ``machos'') could be a major component of the dark matter halo of the Milky Way galaxy. To this...

Metallicity Effects on the Cepheid Extragalactic Distance Scale from EROS photometry in LMC and SMC (2007)

Sasselov, D.D., Beaulieu, J.P., Renault, C., Grison, P., Ferlet, R., Vidal-Madjar, A., ...

This is an investigation of the period-luminosity relation of classical Cepheids in samples of different metallicity. It is based on 481 Cepheids in the Large and Small Magellanic Clouds from the...

The effect of metallicity on the Cepheid distance scale and its implications for the Hubble constant ($H_0$) determination (2007)

Beaulieu, J.P., Sasselov, D.D., Renault, C., Grison, P., Ferlet, R., Vidal-Madjar, A., ...

Recent HST determinations of the expansion's rate of the Universe (the Hubble constant, H_0) assumed that the Cepheid Period-Luminosity relation at V and I are independent of metallicity (Freedman,...

Limits on Galactic Dark Matter with 5 Years of EROS SMC Data (2007)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the...

Bulge Microlensing Optical Depth from EROS 2 observations (2007)

Afonso, C., Albert, J N., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Bulge Microlensing Optical Depth from EROS 2 observations (2007)

Afonso, C., Albert, J N., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Limits on Galactic Dark Matter with 5 Years of EROS SMC Data (2007)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the...

Bulge Microlensing Optical Depth from EROS 2 observations (2007)

Afonso, C., Albert, J N., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Limits on Galactic Dark Matter with 5 Years of EROS SMC Data (2007)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the...

A slope variation in the Period-Luminosity relation for short period SMC Cepheids (2006)

Bauer, F., Afonso, C., Albert, J N., Andersen, J., Ansari, R., Aubourg, E., ...

We present the Period-Luminosity relations from 290 Cepheids towards the LMC and 590 Cepheids towards the SMC. The two data sets were obtained using the two wide field CCD cameras of the EROS 2...

EROS 2 photometry of probable R Coronae Borealis stars in the small Magellanic cloud (2006)

Tisserand, P., Marquette, J.B., Beaulieu, J.P., De Laverny, P., Lesquoy, E., Milsztajn, A., ...

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, V_E and R_E. The photometric data of 4.2 million...

EROS 2 photometry of probable R Coronae Borealis stars in the small Magellanic cloud (2006)

Tisserand, P., Marquette, J.B., Beaulieu, J.P., De Laverny, P., Lesquoy, E., Milsztajn, A., ...

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, V_E and R_E. The photometric data of 4.2 million...

EROS 2 photometry of probable R Coronae Borealis stars in the small Magellanic cloud (2006)

Tisserand, P., Marquette, J.B., Beaulieu, J.P., De Laverny, P., Lesquoy, E., Milsztajn, A., ...

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, V_E and R_E. The photometric data of 4.2 million...

Type Ia supernova rate at a redshift of ~ 0.1 (2006)

Blanc, G., Afonso, C., Alard, C., Albert, J.N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

Type Ia supernova rate at a redshift of ~ 0.1 (2006)

Blanc, G., Afonso, C., Alard, C., Albert, J.N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

Type Ia supernova rate at a redshift of ~ 0.1 (2006)

Blanc, G., Afonso, C., Alard, C., Albert, J.N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

Observational Limits on Machos in the Galactic Halo (2006)

Renault, C., Afonso, C., Aubourg, E., Bareyre, P., Bauer, F., Brehin, S., ...

We present final results from the first phase of the EROS search for gravitational microlensing of stars in the Magellanic Clouds by unseen deflectors (machos: MAssive Compact Halo Objects). The...

Experimental limits on the contribution of sub-stellar and stellar objects to the galactic halo (2006)

Ansari, R., Cavalier, F., Moniez, M., Aubourg, E., Bareyre, P., Brehin, S., ...

EROS (Exp\'erience de Recherche d'Objets Sombres) has been monitoring the luminosity of 4 million stars in the Large Magellanic Cloud in order to search for gravitational microlensing by unseen...

AGAPEROS: Searches for microlensing in the LMC with the Pixel Method - 1, Data treatment and pixel light curves production (2006)

Melchior, A L., Afonso, C., Ansari, R., Aubourg, E., Baillon, P., Bareyre, P., ...

Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however significantly contribute to the...

AGAPEROS: Searches for microlensing in the LMC with the Pixel Method - 1, Data treatment and pixel light curves production (2006)

Melchior, A L., Afonso, C., Ansari, R., Aubourg, E., Baillon, P., Bareyre, P., ...

Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however significantly contribute to the...

AGAPEROS: Searches for microlensing in the LMC with the Pixel Method - 1, Data treatment and pixel light curves production (2006)

Melchior, A L., Afonso, C., Ansari, R., Aubourg, E., Baillon, P., Bareyre, P., ...

Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however significantly contribute to the...

Photometric constraints on microlens spectroscopy of EROS-BLG-2000-5 (2006)

Afonso, C., Albert, J-N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

We apply EROS photometric data to interpret previously published Keck and VLT spectra of the binary-microlens caustic-crossing event EROS-BLG-2000-5. We show that the VLT data imply that the outer...

AGAPEROS : Searches for microlensing in the LMC with the Pixel Method - 2, Selection of possible microlensing events (2006)

Melchior, A L., Afonso, C., Ansari, R., Aubourg, E., Baillon, P., Bareyre, P., ...

We apply the pixel method of analysis (sometimes called ``pixel lensing'') to a small subset of the EROS-1\ microlensing observations of the bar of the Large Magellanic Cloud (LMC). The pixel method...

Observation of periodic variable stars towards the galactic spiral arms by EROS II (2006)

Derue, F., Lupone, S., Afonso, C., Alard, C., ...

We present the results of a massive variability search based on a photometric survey of a six square degree region along the Galactic plane at ($l = 305^\circ$, $b = -0.8^\circ$) and ($l =...

Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds (2006)

Tisserand, P., Guillou, L. Le, Afonso, C., Albert, J. N., Andersen, J., Ansari, R., ...

The EROS-2 project was designed to test the hypothesis that massive compact halo objects (the so-called ``machos'') could be a major component of the dark matter halo of the Milky Way galaxy. To this...

Removing the Microlensing Blending-Parallax Degeneracy Using Source Variability (2006)

Assef, R.J., Gould, A., Afonso, C., Albert, J.N., Andersen, J., Ansari, R., ...

Microlensing event MACHO 97-SMC-1 is one of the rare microlensing events for which the source is a variable star, simply because most variable stars are systematically eliminated from microlensing...

Galactic Bulge Microlensing Optical Depth from EROS-2 (2006)

Hamadache, C., Guillou, L. Le, Tisserand, P., Afonso, C., Albert, J. N., Andersen, J., ...

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were...

The OGLE-II event sc5_2859 : a Classical Nova outburst? (2006)

Afonso, C., Glicenstein, J.F., Gould, A., Smith, M.C, Albert, J.N., Andersen, J., ...

The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets...

Galactic bulge microlensing optical depth from eros-2 (2006)

Hamadache, C., Le Guillou, L., Tisserand, P., Afonso, C., Albert, J.N., Andersen, J., ...

We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Light curves of $5.6\times 10^{6}$ clump-giant stars distributed over $66 \deg^2$ of the Bulge were...

Removing the Microlensing Blending-Parallax Degeneracy Using Source Variability (2006)

Assef, R.J., Gould, A., Afonso, C., Albert, J.N., Andersen, J., Ansari, R., ...

Microlensing event MACHO 97-SMC-1 is one of the rare microlensing events for which the source is a variable star, simply because most variable stars are systematically eliminated from microlensing...

Galactic Bulge microlensing optical depth from EROS-2 (2006)

Hamadache, C., Le Guillou, L., Tisserand, P., Afonso, C., Albert, J. N., Andersen, J., ...

Aims.We present a new EROS-2 measurement of the microlensing optical depth toward the Galactic Bulge. Methods: .Light curves of 5.6× 106 clump-giant stars distributed over 66 deg2 of the Bulge were...

Removing the microlensing blending-parallax degeneracy using source variability (2006)

Assef, R. J., Gould, A., Afonso, C., Albert, J. N., Andersen, J., Ansari, R., ...

Microlensing event MACHO 97-SMC-1 is one of the rare microlensing events for which the source is a variable star, simply because most variable stars are systematically eliminated from microlensing...

The OGLE-II event sc5_2859: A classical nova outburst? (2006)

Afonso, C., Glicenstein, J. F., Gould, A., Smith, M. C., Wagner, R. M., Albert, J. N., ...

Context: .The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Aims: .Additional photometric observations from the EROS (Expérience de...

Photometric Constraints on Microlens Spectroscopy of EROS-BLG-2000-5 (2005)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

We apply EROS photometric data to interpret previously published Keck and VLT spectra of the binary-microlens caustic-crossing event EROS-BLG-2000-5. We show that the VLT data imply that the outer 4...

Bulge Microlensing Optical Depth from EROS 2 observations (2005)

Afonso, C., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

EROS 2 proper motion survey: Constraints on the halo white dwarfs (2005)

Goldman, B., Afonso, C., Alard, Ch., Amadon, A., Andersen, J., ...

We are conducting a 377-square-degree proper motion survey in the ~V and I bands in order to determine the cool white dwarf contribution to the Galactic dark matter. Using the 250 square degrees for...

Type Ia supernova rate at a redshift of ~ 0.1 (2004)

Blanc, G., Afonso, C., Alard, C., Albert, J. N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

Type Ia supernova rate at a redshift of ~ 0.1 (2004)

Blanc, G., Afonso, C., Alard, C., Albert, J.N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

EROS 2 photometry of probable R Coronae Borealis stars in the small Magellanic cloud (2004)

Tisserand, P., Marquette, J.B., Beaulieu, J.P., De Laverny, P., Lesquoy, E., Milsztajn, A., ...

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, V_E and R_E. The photometric data of 4.2 million...

Type Ia supernova rate at a redshift of ~ 0.1 (2004)

Blanc, G., Afonso, C., Alard, C., Albert, J.N., Aldering, G., Amadon, A., ...

We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection...

EROS 2 photometry of probable R Coronae Borealis stars in the small Magellanic cloud (2004)

Tisserand, P., Marquette, J.B., Beaulieu, J.P., De Laverny, P., Lesquoy, E., Milsztajn, A., ...

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, V_E and R_E. The photometric data of 4.2 million...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (2003)

Goldman, B., Delfosse, X., Forveille, T., Afonso, C., Alard, C., Albert, J.N., ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (2003)

Goldman, B., Delfosse, X., Forveille, T., Afonso, C., Alard, C., Albert, J.N., ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (2003)

Goldman, B., Delfosse, X., Forveille, T., Afonso, C., Alard, C., Albert, J.N., ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

Discovery and photometry of the binary-lensing caustic-crossing event eros-blg-2000-5 (2003)

Jung, J.M, Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

The EROS collaboration has developed a real time alert system, which was operational in 1999 and 2000. A very long binary-lensing caustic crossing event, EROS-BLG-2000-5, was found in the 2000 season...

Bulge Microlensing Optical Depth from EROS 2 observations (2003)

Afonso, C., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Bulge Microlensing Optical Depth from EROS 2 observations (2003)

Afonso, C., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Limits on Galactic Dark Matter with 5 Years of EROS SMC Data (2003)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, Eric., Bareyre, P., ...

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the...

Bulge Microlensing Optical Depth from EROS 2 observations (2003)

Afonso, C., Albert, J N., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Discovery and photometry of the binary-lensing caustic-crossing event eros-blg-2000-5 (2003)

Jung, J.M, Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

The EROS collaboration has developed a real time alert system, which was operational in 1999 and 2000. A very long binary-lensing caustic crossing event, EROS-BLG-2000-5, was found in the 2000 season...

Limits on Galactic Dark Matter with 5 Years of EROS SMC Data (2003)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, Eric., Bareyre, P., ...

Five years of EROS data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the...

Bulge Microlensing Optical Depth from EROS 2 observations (2003)

Afonso, C., Albert, J N., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

Discovery and photometry of the binary-lensing caustic-crossing event eros-blg-2000-5 (2003)

Jung, J.M, Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

The EROS collaboration has developed a real time alert system, which was operational in 1999 and 2000. A very long binary-lensing caustic crossing event, EROS-BLG-2000-5, was found in the 2000 season...

Bulge Microlensing Optical Depth from EROS 2 observations (2003)

Afonso, C., Alard, C., Andersen, J., Ansari, R., Aubourg, E., ...

We present a measurement of the microlensing optical depth toward the Galactic bulge based on the analysis of 15 contiguous1 square degrees fields centered on (l=2.5 deg, b=-4.0 deg) and containing...

EROS 2 proper motion survey: Constraints on the halo white dwarfs (2002)

Goldman, B., Afonso, C., Alard, Ch., Amadon, A., Andersen, J., ...

We are conducting a 377-square-degree proper motion survey in the ~V and I bands in order to determine the cool white dwarf contribution to the Galactic dark matter. Using the 250 square degrees for...

Observation of periodic variable stars towards the galactic spiral arms by EROS II (2002)

Derue, F., Marquette, J. B., Lupone, S., Afonso, C., Alard, C., Albert, J-N., ...

We present the results of a massive variability search based on a photometric survey of a six square degree region along the Galactic plane at ($l = 305^\circ$, $b = -0.8^\circ$) and ($l =...

EROS 2 proper motion survey: Constraints on the halo white dwarfs (2002)

Goldman, B., Afonso, C., Alard, Ch., Amadon, A., Andersen, J., ...

We are conducting a 377-square-degree proper motion survey in the ~V and I bands in order to determine the cool white dwarf contribution to the Galactic dark matter. Using the 250 square degrees for...

EROS 2 proper motion survey: Constraints on the halo white dwarfs (2002)

Goldman, B., Afonso, C., Alard, Ch., Amadon, A., Andersen, J., ...

We are conducting a 377-square-degree proper motion survey in the ~V and I bands in order to determine the cool white dwarf contribution to the Galactic dark matter. Using the 250 square degrees for...

Type Ia supernova rate at $z \sim 0.1$ (2001)

Hardin, D P., Afonso, C., Alard, C., Albert, J N., Amadon, A., Andersen, J., ...

We present the EROS nearby supernova ($z \sim 0.02 - 0.2$) search and the analysis of the first year of data (1997). A total of 80 square degrees were surveyed. Eight supernov{\ae} were detected,...

EROS 2 proper motion survey for halo white dwarfs (2001)

Goldman, B., Afonso, C., Alard, C., Albert, J-N., Andersen, J., Ansari, R., ...

Since 1996 EROS 2 has surveyed 440 square degrees at high Galactic latitude in order to search for high proper motion stars in the Solar neighbourhood. We present here the analysis of 250 square...

Photometric Constraints on Microlens Spectroscopy of EROS-BLG-2000-5 (2001)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

We apply EROS photometric data to interpret previously published Keck and VLT spectra of the binary-microlens caustic-crossing event EROS-BLG-2000-5. We show that the VLT data imply that the outer 4...

Photometric Constraints on Microlens Spectroscopy of EROS-BLG-2000-5 (2001)

Afonso, C., Albert, J.N., Andersen, J., Ansari, R., Aubourg, E., Bareyre, P., ...

We apply EROS photometric data to interpret previously published Keck and VLT spectra of the binary-microlens caustic-crossing event EROS-BLG-2000-5. We show that the VLT data imply that the outer 4...

Type Ia supernova rate at $z \sim 0.1$ (2000)

Hardin, D., Afonso, C., Alard, C., Albert, J. N., Amadon, A., Andersen, J., ...

We present the EROS nearby supernova ($z \sim 0.02 - 0.2$) search and the analysis of the first year of data (1997). A total of 80 square degrees were surveyed. Eight supernov{\ae} were detected,...

Eros variable stars: fundamental-mode and first-overtone cepheids in the bar of the large magellanic cloud (2000)

Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Ferlet, R., ...

We present CCD phase-binned light curves at 490\,nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excellent phase...

Type Ia supernova rate at $z \sim 0.1$ (2000)

Hardin, D P., Afonso, C., Alard, C., Albert, J N., Amadon, A., Andersen, J., ...

We present the EROS nearby supernova ($z \sim 0.02 - 0.2$) search and the analysis of the first year of data (1997). A total of 80 square degrees were surveyed. Eight supernov{\ae} were detected,...

EROS 2 proper motion survey for halo white dwarfs (2000)

Goldman, B., Afonso, C., Alard, C., Albert, J-N., Andersen, J., Ansari, R., ...

Since 1996 EROS 2 has surveyed 440 square degrees at high Galactic latitude in order to search for high proper motion stars in the Solar neighbourhood. We present here the analysis of 250 square...

Type Ia supernova rate at $z \sim 0.1$ (2000)

Hardin, D P., Afonso, C., Alard, C., Albert, J N., Amadon, A., Andersen, J., ...

We present the EROS nearby supernova ($z \sim 0.02 - 0.2$) search and the analysis of the first year of data (1997). A total of 80 square degrees were surveyed. Eight supernov{\ae} were detected,...

EROS 2 proper motion survey for halo white dwarfs (2000)

Goldman, B., Afonso, C., Alard, C., Albert, J-N., Andersen, J., Ansari, R., ...

Since 1996 EROS 2 has surveyed 440 square degrees at high Galactic latitude in order to search for high proper motion stars in the Solar neighbourhood. We present here the analysis of 250 square...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (1999)

Goldman, B, Delfosse, X, Forveille, T, Afonso, C, Alard, C, Albert, J N, ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

Observation of Microlensing towards the Galactic Spiral Arms: EROS II 2 year survey (1999)

Derue, F, Afonso, C, Alard, C, Albert, J N, Andersen, J, Ansari, R, ...

We present the analysis of the light curves of 8.5 million stars observed during two seasons by EROS (Experience de Recherche d'Objets Sombres), in the galactic plane away from the bulge. Three stars...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (1999)

Goldman, B., Delfosse, X., Forveille, T., Afonso, C., Alard, C., Albert, J.N., ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102 (1999)

Goldman, B., Delfosse, X., Forveille, T., Afonso, C., Alard, C., Albert, J.N., ...

We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared...

EROS Variable Stars : Discovery of Beat Cepheids in the Small Magellanic Cloud and the effect of metallicity on pulsation (1997)

Beaulieu, J. P., Krockenberger, M., Sasselov, D. D., Renault, C., Ferlet, R., Vidal-Madjar, A., ...

We report the discovery of eleven beat Cepheids in the Small Magellanic Cloud, using data obtained by the EROS microlensing survey. Four stars are beating in the fundamental and first overtone mode...

The effect of metallicity on the Cepheid distance scale and its implications for the Hubble constant ($H_0$) determination (1996)

Beaulieu, J. P., Sasselov, D. D., Renault, C., Grison, P., Ferlet, R., Vidal-Madjar, A., ...

Recent HST determinations of the expansion's rate of the Universe (the Hubble constant, H_0) assumed that the Cepheid Period-Luminosity relation at V and I are independent of metallicity (Freedman,...

Metallicity Effects on the Cepheid Extragalactic Distance Scale from EROS photometry in LMC and SMC (1996)

Sasselov, D. D., Beaulieu, J. P., Renault, C., Grison, P., Ferlet, R., Vidal-Madjar, A., ...

This is an investigation of the period-luminosity relation of classical Cepheids in samples of different metallicity. It is based on 481 Cepheids in the Large and Small Magellanic Clouds from the...

Observational Limits on Machos in the Galactic Halo (1996)

Renault, EROS Collaboration: C., Afonso, C., Aubourg, E., Bareyre, P., Bauer, F., Brehin, S., ...

We present final results from the first phase of the EROS search for gravitational microlensing of stars in the Magellanic Clouds by unseen deflectors (machos: MAssive Compact Halo Objects). The...

Observational Limits on Machos in the Galactic Halo (1996)

Renault, C., Afonso, C., Aubourg, E., Bareyre, P., Bauer, F., Brehin, S., ...

We present final results from the first phase of the EROS search for gravitational microlensing of stars in the Magellanic Clouds by unseen deflectors (machos: MAssive Compact Halo Objects). The...

EROS VARIABLE STARS : FUNDAMENTAL-MODE AND FIRST OVERTONE CEPHEIDS IN THE BAR OF THE LARGE MAGELLANIC CLOUD (1995)

Beaulieu, J. P., Grison, P., Tobin, W., Pritchard, J. D., Ferlet, R., Vidal-Madjar, A., ...

We present CCD phase-binned light curves at 490 nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excellent phase...

SEARCH FOR VERY LOW MASS OBJECTS IN THE GALACTIC HALO (1995)

Aubourg, EROS Collaboration: E., Bareyre, P., Brehin, S., Gros, M., Lachieze-Rey, M., Laurent, B., ...

We present results from a search for gravitational microlensing of stars in the Large Magellanic Cloud by low mass objects in the Galactic Halo. The search uses the CCD light curves of about 82,000...

Eros variable stars: fundamental-mode and first-overtone cepheids in the bar of the large magellanic cloud (1995)

Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Ferlet, R., ...

We present CCD phase-binned light curves at 490\,nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excellent phase...

Eros variable stars: fundamental-mode and first-overtone cepheids in the bar of the large magellanic cloud (1995)

Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Yasu, Y., Ferlet, R., ...

We present CCD phase-binned light curves at 490\,nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excellent phase...

Experimental limits on the contribution of sub-stellar and stellar objects to the galactic halo (1995)

Ansari, R., Cavalier, F., Moniez, M., Aubourg, E., Bareyre, P., Brehin, S., ...

EROS (Exp\'erience de Recherche d'Objets Sombres) has been monitoring the luminosity of 4 million stars in the Large Magellanic Cloud in order to search for gravitational microlensing by unseen...

Spectroscopic Studies of the Two Eros Candidate Microlensed Stars (1994)

Beaulieu, J. P., Ferlet, R., Grison, Ph., Vidal-Madjar, A., Kneib, J. P., Maurice, E., ...

Low resolution spectroscopy, and UBVRI photometry, have been obtained for the two EROS microlensing candidates. Radial velocities indicate that both stars are members of the Large Magellanic Cloud....

Results from the Fréjus experiment on nucleon decay modes with charged leptons (1991)

Möller, R., Blum, D., Eschstruth, P., Moscoso, L., Ernwein, J., Longuemare, C., ...

Lower limits on the nucleon lifetime in channels containing at least one positron or muon are given. The analysis is based on 4 years of data taking with the Fréjus detector. Various approaches to...