Transit timing analysis of CoRoT-1b (2009)
Csizmadia, Sz., Renner, S., Barge, P., Agol, E., Aigrain, S., Alonso, R., ...
CoRoT, the pioneer space-based transit search, steadily provides thousands of high-precision light curves with continuous time sampling over periods of up to 5 months. The transits of a planet...
Rauer, H., Queloz, D., Csizmadia, Sz., Deleuil, M., Alonso, R., Aigrain, S., ...
Aims. The CoRoT space mission continues to photometrically monitor about 12 000 stars in its field-of-view for a series of target fields to search for transiting extrasolar planets ever since 2007....
Planetary transit candidates in COROT-IRa01 field (2009)
Carpano, S., Cabrera, J., Alonso, R., Barge, P., Aigrain, S., ...
Context: CoRoT is a pioneering space mission devoted to the analysis of stellar variability and the photometric detection of extrasolar planets. Aims: We present the list of planetary transit...
The secondary eclipse of CoRoT-1b (2009)
Alonso, R., Alapini, A., Aigrain, S., Auvergne, M., Baglin, A., Barbieri, M., ...
The transiting planet CoRoT-1b is thought to belong to the pM-class of planets, in which the thermal emission dominates in the optical wavelengths. We present a detection of its secondary eclipse in...
VLT transit and occultation photometry for the bloated planet CoRoT-1b (2009)
Gillon, M., Barman, T., Hebb, L., Montalban, J., ...
We present VLT eclipse photometry for the giant planet CoRoT-1b. We observed a transit in the R-band filter and an occultation in a narrow filter centered on 2.09 microns. Our analysis of this new...
Near-IR observations of the HE0450-2958 system: discovery of a second AGN? (2009)
Letawe, G., Magain, P., Chantry, V., Letawe, Y.
The QSO HE0450-2958 was brought to the front scene by the non-detection of its host galaxy and strong upper limits on the latter's luminosity. The QSO is also a powerful infrared emitter, in...
Noise properties of the CoRoT data: a planet-finding perspective (2009)
Aigrain, S., Pont, F., Fressin, F., Alapini, A., Alonso, R., Auvergne, M., ...
In this short paper, we study the photometric precision of stellar light curves obtained by the CoRoT satellite in its planet finding channel, with a particular emphasis on the timescales...
Noise properties of the CoRoT data. A planet-finding perspective (2009)
Aigrain, S, Pont, F, Fressin, F, Alapini, A, Alonso, R, Auvergne, M, ...
Borguet, B., Hutsemékers, D., Letawe, G., Letawe, Y., Magain, P.
We investigate correlations between the direction of the optical linear polarization and the orientation of the host galaxy/extended emission for type1 and type2 radio-loud and radio-quiet quasars....
Aigrain, S., Cameron, A. Collier, Ollivier, M., Pont, F., Jorda, L., Almenara, J. M., ...
CoRoT, the first space-based transit search, provides ultra-high precision light curves with continuous time-sampling over periods, of up to 5 months. This allows the detection of transiting planets...
Vuissoz, C., Courbin, F., Sluse, D., Meylan, G., Chantry, V., Eulaers, E., ...
Gravitationally lensed quasars can be used to map the mass distribution in lensing galaxies and to estimate the Hubble constant H0 by measuring the time delays between the quasar images. Here we...
Barge, P., Baglin, A., Auvergne, M., Rauer, H., Leger, A., Schneider, J., ...
Context. The pioneer space mission for photometric planet searches, CoRoT, steadily monitors about 12,000 stars in each of its fields of view; it is able to detect transit candidates early in the...
Alonso, R., Auvergne, M., Baglin, A., Ollivier, M., Moutou, C., Rouan, D., ...
Context. The CoRoT mission, a pioneer in exoplanet searches from space, has completed its first 150 days of continuous observations of ~12000 stars in the galactic plane. An analysis of the raw data...
Bouchy, F., Queloz, D., Deleuil, M., Loeillet, B., Hatzes, A. P., Aigrain, S., ...
We report on the spectroscopic transit of the massive hot-Jupiter CoRoT-Exo-2b observed with the high-precision spectrographs SOPHIE and HARPS. By modeling the radial velocity anomaly occurring...
Letawe, Y., Magain, P., Letawe, G., Courbin, F., Hutsemékers, D.
The host galaxies of six nearby QSOs are studied on the basis of high resolution HST optical images and spatially resolved VLT slit spectra. The gas ionization and velocity are mapped as a function...
Bouchy, F., Queloz, D., Deleuil, M., Loeillet, B., Hatzes, A., Aigrain, S., ...
We report on the spectroscopic transit of the massive hot-Jupiter CoRoT-Exo-2b observed with the high-precision spectrographs SOPHIE and HARPS. By modeling the radial velocity anomaly occurring...
Alonso, R., Auvergne, M., Baglin, A., Ollivier, M., Moutou, C., Rouan, D., ...
Context. The CoRoT mission, a pioneer in exoplanet searches from space, has completed its first 150 days of continuous observations of ~12 000 stars in the galactic plane. An analysis of the raw data...
Moutou, C, Bruntt, H, Guillot, T, Shporer, A, Günther, E, Aigrain, S, ...
High-dispersion Spectroscopic Observations Of 8P/Tuttle With VLT/CRIRES (2008)
Kobayashi, H, Bockelee-Morvan, D, Neil, D, Kawakita, H, Verback, R, Weaver, H, ...
Quasar Host Orientation and Polarization: Insights into the Type 1/Type 2 Dichotomy (2008)
B. Borguet, D. Hutsemékers, G. Letawe, P. Magain, Y. Letawe
We investigate correlations between the optical linear polarization position angle and the orientation of the host galaxy/extended emission of Type 1 and Type 2 Radio-Loud (RL) and Radio-Quiet (RQ)...
An optical time-delay estimate for the double gravitational lens system B1600+434 1 (2007)
I. Burud, J. Hjorth, A. O. Jaunsen, M. I. Andersen, H. Korhonen, J. W. Clasen, ...
and R. stensen Department of Physics
An optical time-delay estimate for the double gravitational lens system B1600+434 (2007)
I. Burud, J. Hjorth, A. O. Jaunsen, M. I. Andersen, H. Korhonen, J. W. Clasen, ...
We present optical I-band light curves of the gravitationally lensed double QSO B1600+434 from observations obtained at the Nordic Optical Telescope (NOT) between April 1998 and November 1999. The...
The Interest In, F. Courbin, C. Lidman, I. Burud, J. Hjorth, P. Magain, ...
this report recent VLT FORS2 observations of HE 1104-1805, a doubly imaged quasar at z=2.319 discovered in the framework of the Hamburg-ESO survey for bright quasars (Wisotzki et al. 1993). The...
Detection of the lensing galaxy in HE 1104-1805 (2007)
Courbin Lidman And, F. Courbin, C. Lidman, P. Magain
. We report on deep IR imaging of the double quasar HE 1104--1805. A new image deconvolution technique has been applied to the data in order to optimally combine the numerous frames obtained. The...
High resolution optical and near-IR imaging of the quadruple quasar RX J0911.4+0551 (2007)
I. Burud, F. Courbin, C. Lidman, A. O. Jaunsen, J. Hjorth, M. I. Andersen, ...
We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3:1 00 , it is the quadruply imaged QSO with the widest known...
Image Deconvolution of the Radio Ring PKS 1830--211 (2007)
F. Courbin, C. Lidman, B. L. Frye, P. Magain, T. J. Broadhurst, ...
New high quality Keck and ESO images of PKS 1830--211 are presented. Applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the...
Astronomy And Astrophysics (2007)
Pox The, V. Doublier, D. Kunth, F. Courbin, P. Magain
. High resolution, ground based R and I band observations of the ultra compact dwarf galaxy POX 186 are presented. The data, obtained with the ESO New Technology Telescope (NTT), are analyzed using a...
The LMC transition star R 84 and the core of the LH 39 OB association (2007)
Heydari-Malayeri Courbin, M. Heydari-malayeri, F. Courbin, G. Rauw, O. Esslinger, P. Magain
. On the basis of sub-arcsecond imaging obtained at the ESO NTT with SUSI and the ESO ADONIS adaptive optics system at the 3.6 m telescope, we resolve and study the core components of the LMC OB...
Image Deconvolution of the Radio Ring PKS 1830--211 1 (2007)
F. Courbin, C. Lidman, B. L. Frye, P. Magain, T. J. Broadhurst, M. A. Pahre, ...
New high quality Keck and ESO images of PKS 1830--211 are presented. Applying a powerful new deconvolution algorithm to this optical and infrared data, both images of the flat spectrum core of the...
Borguet, B., Hutsemékers, D., Letawe, G., Letawe, Y., Magain, P.
For Seyfert galaxies, the AGN unification model provides a simple and well established explanation of the Type 1/Type 2 dichotomy through orientation based effects. The generalization of this...
Quasar Host Orientation and Polarization: Insights into the Type 1/Type 2 Dichotomy (2007)
Borguet, B., Hutsemékers, D., Letawe, G., Letawe, Y., Magain, P.
We investigate correlations between the optical linear polarization position angle and the orientation of the host galaxy/extended emission of Type 1 and Type 2 Radio-Loud (RL) and Radio-Quiet (RQ)...
Slit and integral-field optical spectroscopy of the enigmatic quasar HE0450-2958 (2007)
Letawe, G., Magain, P., Courbin, F.
Interest in the quasar HE0450-2958 arose following the publication of the non-detection of its expected massive host, leading to various interpretations. This article investigates the gaseous and...
Courbin, F, Sluse, D, Meylan, G, Ibrahimov, M, Asfandiyarov, I, ...
Our aim is to measure the time delay between the two gravitationally lensed images of the z(qso) = 1.547 quasar SDSS J1650+ 4251, in order to estimate the Hubble constant H-0.
Gillon, M., Pont, F., Moutou, C., Santos, N. C., Bouchy, F., Hartman, J. D., ...
OGLE-TR-132b transits a very metal-rich F dwarf about 2000 pc from the Sun, in the Galactic disc towards Carina. It orbits very close to its host star (a = 0.03 AU) and has an equilibrium temperature...
Gillon, M., Pont, F., Moutou, C., Santos, N. C., Bouchy, F., Hartman, J. D., ...
OGLE-TR-132b transits a very metal-rich F dwarf about 2000 pc from the Sun, in the Galactic disc towards Carina. It orbits very close to its host star (a = 0.03 AU) and has an equilibrium temperature...
On the influence of blends on the potential of ground-based transit surveys (2007)
Transit surveys have to observe many stars all at once in order to compensate for the rarity of the searched events. Such surveys, especially the ones observing a deep field of view and/or broadening...
On-axis spectroscopy of the host galaxies of 20 optically luminous quasars at z ~ 0.3 (2007)
Letawe, G., Magain, P., Courbin, F., Jablonka, P., Jahnke, K., Meylan, G., ...
We present the analysis of a sample of 20 bright low-redshift quasars (MB < -23 and z < 0.35) observed spectroscopically with the Very Large Telescope (VLT). The Focal Reducer/low dispersion...
Magain, P., Courbin, F., Gillon, M., Sohy, S., Letawe, G., Chantry, V., ...
A new method is presented for determining the Point Spread Function (PSF) of images that lack bright and isolated stars. It is based on the same principles as the MCS (Magain, Courbin, Sohy, 1998)...
Gillon, M., Pont, F., Moutou, C., Bouchy, F., Courbin, F., Sohy, S., ...
A high accuracy photometry algorithm is needed to take full advantage of the potential of the transit method for the characterization of exoplanets, especially in deep crowded fields. It has to...
Bruntt, H., Bikmaev, I. F., Catala, C., Solano, E., Gillon, M., Magain, P., ...
One of the goals of the ground-based support program for the COROT and Roemer satellite missions is to characterize suitable target stars for the part of the missions dedicated to asteroseismology....
Gillon, M., Pont, F., Moutou, C., Bouchy, F., Courbin, F., Sohy, S., ...
A high accuracy photometry algorithm is needed to take full advantage of the potential of the transit method for the characterization of exoplanets, especially in deep crowded fields. It has to...
Vuissoz, C., Courbin, F., Sluse, D., Meylan, G., Ibrahimov, M., Asfandiyarov, I., ...
Aims: Our aim is to measure the time delay between the two gravitationally lensed images of the z = 1.547 quasar SDSS J1650+4251, in order to estimate the Hubble constant H_0. Methods: Our...
On-axis spectroscopy of the host galaxies of 20 optically luminous quasars at z~0.3 (2006)
Letawe, G., Magain, P., Courbin, F., Jablonka, P., Jahnke, K., Meylan, G., ...
We present the analysis of a sample of 20 bright low-redshift quasars (M_B
Gillon, M., Pont, F., Moutou, C., Bouchy, F., Courbin, F., Sohy, S., ...
A high accuracy photometry algorithm is needed to take full advantage of the potential of the transit method for the characterization of exoplanets, especially in deep crowded fields. It has to...
Gillon, M., Pont, F., Moutou, C., Bouchy, F., Courbin, F., Sohy, S., ...
A high accuracy photometry algorithm is needed to take full advantage of the potential of the transit method for the characterization of exoplanets, especially in deep crowded fields. It has to...
VLT on-axis spectroscopy of quasar host galaxies (2006)
Letawe, G., Magain, P., Courbin, F., Jablonka, P., Meylan, G., Jahnke, K., ...
We present the full analysis of our sample of 20 bright low redshift quasars (MB < -23 and z < 0.35), observed spectroscopically with the VLT FORS1, with objectives of characterizing the hosts and...
One of the main goals of the COROT mission is to get precise photometric observations of selected bright stars in order to allow the modelling of their interior through asteroseismology. However, in...
Eigenbrod, A., Courbin, F., Meylan, G., Vuissoz, C., Magain, P.
Aims: We measure the redshift of the lensing galaxy in eight gravitationally lensed quasars in view of determining the Hubble parameter H_0 from the time delay method. Methods: Deep VLT/FORS1 spectra...
Eigenbrod, A., Courbin, F., Dye, S., Meylan, G., Sluse, D., Saha, P., ...
(Abridged) We present our VLT/FORS1 deep spectroscopic observations of the gravitationally lensed quasar SDSS J0924+0219, as well as archival HST/NICMOS and ACS images of the same object. The...
Courbin, F., Letawe, G., Magain, P., Wisotzki, L., Jablonka, P., Jahnke, K., ...
We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the...
On the potential of extrasolar planet transit surveys (2005)
Gillon, M., Courbin, F., Magain, P., Borguet, B.
We analyse the respective benefits and drawbacks of ground-based and space-based transit surveys for extrasolar planets. Based on simple but realistic assumptions about the fraction of lower main...
Nakos, Th., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673).The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
Letawe, G., Courbin, F., Magain, P., Hilker, M., Jablonka, P., Jahnke, K., ...
VLT on-axis optical spectroscopy of the z=0.144 radio-loud quasar HE 1434-1600 is presented. The spatially resolved spectra of the host galaxy are deconvolved and separated from those of the central...
Bruntt, H., Bikmaev, I. F., Catala, C., Solano, E., Gillon, M., Magain, P., ...
One of the goals of the ground-based support program for the COROT and Roemer satellite missions is to characterize suitable target stars for the part of the missions dedicated to asteroseismology....
Bruntt, H., Bikmaev, I. F., Catala, C., Solano, E., Gillon, M., Magain, P., ...
One of the goals of the ground-based support program for the COROT and Roemer satellite missions is to characterize suitable target stars for the part of the missions dedicated to asteroseismology....
Bruntt, H., Bikmaev, I. F., Catala, C., Solano, E., Gillon, M., Magain, P., ...
One of the goals of the ground-based support program for the COROT and Roemer satellite missions is to characterize suitable target stars for the part of the missions dedicated to asteroseismology....
P-mode oscillations of alpha Cen A (2003)
Scuflaire, R, Vatovez, B, Noels, A, Magain, P, ...
Models of alpha Cen A & B have been computed using the masses determined by Pourbaix et al. (2002) and the data derived from the spectroscopic analysis of Neuforge and Magain (1997). The...
Courbin, F., Letawe, G., Magain, P., Wisotzki, L., Jablonka, P., Jahnke, K., ...
We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the...
Time delay and lens redshift for the doubly imaged BAL quasar SBS1520+530 (2002)
Burud, I., Hjorth, J., Courbin, F., Cohen, J. G., Magain, P., Jaunsen, A. O., ...
We present optical R-band light curves of the gravitationally lensed quasar SBS1520+530 derived from data obtained at the Nordic Optical Telescope. A time delay of 130+/-3 days (1 sigma) is...
Accretion of gas by globular cluster stars (2002)
Thoul, A., Jorissen, A., Goriely, S., Jehin, E., Magain, P., Noels, A., ...
Some recent observations of the abundances of s-process, r-process, and alpha elements in metal-poor stars have led to a new scenario for their formation. According to this scenario, these stars were...
Courbin, F., Letawe, G., Magain, P., Wisotzki, L., Jablonka, P., Jahnke, K., ...
We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the...
Courbin, F., Letawe, G., Magain, P., Wisotzki, L., Jablonka, P., Jahnke, K., ...
We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the...
An Optical Time-Delay for the Lensed BAL Quasar HE2149-2745 (2001)
Burud, I., Courbin, F., Magain, P., Lidman, C., Hutsemekers, D., ...
We present optical V and i-band light curves of the gravitationally lensed BAL quasar HE2149-2745. The data, obtained with the 1.5m Danish Telescope (ESO-La Silla) between October 1998 and December...
A novel approach for extracting time-delays from lightcurves of lensed quasar images (2001)
Burud, I., Magain, P., Sohy, S., Hjorth, J.
We present a new method to estimate time delays from light curves of lensed quasars. The method is based on chi^2 minimization between the data and a numerical model light curve. A linear variation...
The Old Halo metallicity gradient: the trace of a self-enrichment process (2000)
Parmentier, G., Jehin, E., Magain, P., Noels, A., Thoul, A.
Based on a model of globular cluster self-enrichment published in a previous paper, we present an explanation for the metallicity gradient observed throughout the galactic Old Halo. Our...
An optical time-delay estimate for the double gravitational lens system B1600+434 (2000)
Burud, I., Hjorth, J., Jaunsen, A. O., Andersen, M. I., Korhonen, H., Clasen, J. W., ...
We present optical I-band light curves of the gravitationally lensed double QSO B1600+434 from observations obtained at the Nordic Optical Telescope (NOT) between April 1998 and November 1999. The...
Exploring the gravitationally lensed system HE 1104-1805: Near-IR Spectroscopy (2000)
Courbin, F., Lidman, C., Meylan, G., Magain, P.
(Abridged) A new technique for the spatial deconvolution of spectra is applied to near-IR (0.95 - 2.50 micron) NTT/SOFI spectra of the lensed, radio-quiet quasar HE 1104-1805. The continuum of the...
Resolved Stellar Populations of Super-Metal-Rich Star Clusters in the Bulge of M31 (2000)
Jablonka, P., Courbin, F., Meylan, G., Sarajedini, A., Bridges, T. J., Magain, P.
We have applied the MCS image deconvolution algorithm (Magain, Courbin & Sohy 1998) to HST/WFPC2 V, I data of three M31 bulge globular clusters (G170, G177, and G198) and control fields near each...
The self-enrichment of galactic halo globular clusters : a clue to their formation ? (1999)
Parmentier, G., Jehin, E., Magain, P., Neuforge, C., Noels, A., Thoul, A. A.
We present a model of globular cluster self-enrichment. In the protogalaxy, cold and dense clouds embedded in the hot protogalactic medium are assumed to be the progenitors of galactic halo globular...
A method for spatial deconvolution of spectra (1999)
Courbin, F., Magain, P., Kirkove, M., Sohy, S.
A method for spatial deconvolution of spectra is presented. It follows the same fundamental principles as the ``MCS image deconvolution algorithm'' (Magain, Courbin, Sohy, 1998) and uses information...
POX 186: the ultracompact Blue Compact Dwarf Galaxy reveals its nature (1999)
Doublier, V., Kunth, D., Courbin, F., Magain, P.
High resolution, ground based R and I band observations of the ultra compact dwarf galaxy POX 186 are presented. The data, obtained with the ESO New Technology Telescope (NTT), are analyzed using a...
Abundance correlations in mildly metal-poor stars (1998)
Jehin, E., Magain, P., Neuforge, C., Noels, A., Parmentier, G., Thoul, A.
Accurate relative abundances have been obtained for a sample of 21 mildly metal-poor stars from the analysis of high resolution and high signal-to-noise spectra. With these accurate results,...
Three photometric methods tested on ground-based data of Q 2237+0305 (1998)
Burud, I., Stabell, R., Magain, P., Courbin, F., Ostensen, R., Refsdal, S., ...
The Einstein Cross, Q~2237+0305, has been photometrically observed in four bands on two successive nights at NOT (La Palma, Spain) in October 1995. Three independent algorithms have been used to...
High resolution optical and near-IR imaging of the quadruple quasar RX J0911.4+0551 (1998)
Burud, I., Courbin, F., Lidman, C., Jaunsen, A., Hjorth, J., Ostensen, R., ...
We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3.1", it is the quadruply imaged QSO with the widest known angular...
BIMA and Keck Imaging of the Radio Ring PKS 1830-211 (1998)
Frye, B. L., Courbin, F., Broadhurst, T., Welch, W. J. W., Lidman, C., Magain, P., ...
We discuss BIMA (Berkeley Illinois Maryland Association) data and present new high quality optical and near-IR Keck images of the bright radio ring PKS 1830-211. Applying a powerful new deconvolution...
Image Deconvolution of the Radio Ring PKS 1830-211 (1998)
Courbin, F., Lidman, C., Frye, B., Magain, P., Broadhurst, T. J., Pahre, M. A., ...
New high quality Keck and ESO images of PKS 1830-211 are presented. Applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the...
Detection of the lensing galaxy in HE 1104-1805 (1997)
Courbin, F., Lidman, C., Magain, P.
We report on deep IR imaging of the double quasar HE 1104-1805. A new image deconvolution technique has been applied to the data in order to optimally combine the numerous frames obtained. The...
The LMC transition star R84 and the core of the LH 39 OB association (1997)
Heydari-Malayeri, M., Courbin, F., Rauw, G., Esslinger, O., Magain, P.
On the basis of sub-arcsecond optical imaging we resolve and study the core components of the LMC OB association LH 39. The central star of the association, the rare transition object R84, is also...
The geometry of the quadruply imaged quasar PG 1115+080; implications for Ho (1997)
Courbin, F., Magain, P., Keeton, C. R., Kochanek, C. S., Vanderriest, C., Jaunsen, A. O., ...
Time delay measurements have recently been reported for the lensed quasar PG 1115+080. These measurements can be used to derive Ho, but only if we can constrain the lensing potential. We have applied...
Deconvolution with correct sampling (1997)
Magain, P., Courbin, F., Sohy, S.
A new method for improving the resolution of astronomical images is presented. It is based on the principle that sampled data cannot be fully deconvolved without violating the sampling theorem. Thus,...
Quik, M., Labibes, K., Albertini, C., Valentin, T., Magain, P.
Thin sheet steel has been tested at different strain rates ranging (10-3 to 10+3 s-1) under different deformation modes. The specimens were cut from thin sheet at 0 and 90 degrees with respect to the...
Validation of Constitutive Equations for Steel (1997)
Valentin, T., Magain, P., Quik, M., Labibes, K., Albertini, C.
High strain rate mechanical properties are a major concern for each steel manufacturer, especially with respect to thin sheet steel used in the automotive branch. We began to study this topic by...
Quik, M., Labibes, K., Albertini, C., Valentin, T., Magain, P.
Thin sheet steel has been tested at different strain rates ranging (10-3 to 10+3 s-1) under different deformation modes. The specimens were cut from thin sheet at 0 and 90 degrees with respect to the...
Validation of Constitutive Equations for Steel (1997)
Valentin, T., Magain, P., Quik, M., Labibes, K., Albertini, C.
High strain rate mechanical properties are a major concern for each steel manufacturer, especially with respect to thin sheet steel used in the automotive branch. We began to study this topic by...
Quik, M., Labibes, K., Albertini, C., Valentin, T., Magain, P.
Thin sheet steel has been tested at different strain rates ranging (10-3 to 10+3 s-1) under different deformation modes. The specimens were cut from thin sheet at 0 and 90 degrees with respect to the...
Validation of Constitutive Equations for Steel (1997)
Valentin, T., Magain, P., Quik, M., Labibes, K., Albertini, C.
High strain rate mechanical properties are a major concern for each steel manufacturer, especially with respect to thin sheet steel used in the automotive branch. We began to study this topic by...
The geometry of the quadruply imaged quasar PG1115+080; implications for H0 (1997)
F. Courbin, P. Magain, C. R. Keeton, C. S. Kochanek, C. Vanderriest
. Time delay measurements have recently been reported for the lensed quasar PG 1115+080. These measurements can be used to derive H 0 , but only if we can constrain the lensing potential. We have...
Sub-arcsecond imaging and spectroscopy of the radio-loud highly polarized quasar PKS 1610-771 (1996)
Courbin, F., Hutsemekers, D., Meylan, G., Magain, P., Djorgovski, S. G.
We report on imaging and spectroscopic observations of the radio-loud, highly polarized quasar PKS 1610-771 (z = 1.71). Our long-slit spectroscopy of the companion 4.55 arcseconds NW of the quasar...
R. Østensen, M. Remy, P. O. Lindblad, S. Refsdal, R. Stabell, J. Surdej, ...
ESO & NOT photometric monitoring of the Cloverleaf
Photometric monitoring (1987 to 1994) of the gravitational lens candidate UM 425 (1995)
Courbin, F., Magain, P., Remy, M., Smette, A., S, J. F. Claesken, Hainaut, O., ...
We present the results of a 7 year long photometric monitoring of two components (A and B) of UM 425, thought to be images, separated by 6.5", of the same z = 1.47 quasar. These components have been...