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...
Properties of starspots on CoRoT-2 (2009)
Silva-Valio, Adriana, Lanza, A. F., Alonso, R., Barge, P.
As a planet eclipses its parent star, a dark spot on the surface of the star may be occulted, causing a detectable variation in the light curve. A total of 77 consecutive transit light curves of...
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....
Leger, A., Rouan, D., Schneider, J., Barge, P., Fridlund, M., Samuel, B., ...
We report the discovery of very shallow (DF/F = 3.4 10-4), periodic dips in the light curve of an active V = 11.7 G9V star observed by the CoRoT satellite, which we interpret as due to the presence...
Leger, A, Rouan, D, Schneider, J, Barge, P, Fridlund, M, Samuel, B, ...
We report the discovery of very shallow (DF/F = 3.4 10-4), periodic dips in the light curve of an active V = 11.7 G9V star observed by the CoRoT satellite, which we interpret as due to the presence...
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...
The secondary eclipse of the transiting exoplanet CoRoT-2b (2009)
Alonso, R., Guillot, T., Mazeh, T., Aigrain, S., Alapini, A., Barge, P., ...
We present a study of the light curve of the transiting exoplanet CoRoT-2b, aimed at detecting the secondary eclipse and measuring its depth. The data were obtained with the CoRoT satellite during...
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...
Photospheric activity and rotation of the planet-hosting star CoRoT-Exo-4a (2009)
Lanza, A. F., Aigrain, S., Messina, S., Leto, G., Pagano, I., Auvergne, M., ...
The space experiment CoRoT has recently detected a transiting hot Jupiter in orbit around a moderately active F-type main-sequence star (CoRoT-Exo-4a). This planetary system is of particular interest...
Search for the sign of a second planet in CoRoT-Exo-1b: Transit timing variation analysis (2009)
Csizmadia, Szilard, Barge, P, Renner, S, Bonomo, A, Alonso, R, Cabrera, Juan, ...
Noise properties of the CoRoT data. A planet-finding perspective (2009)
Aigrain, S, Pont, F, Fressin, F, Alapini, A, Alonso, R, Auvergne, M, ...
Deleuil, M, Deeg, H J, Alonso, R, Bouchy, F, Rouan, D, Auvergne, M, ...
Context: The CoRoT space mission routinely provides high-precision photometric measurements of thousands of stars that have been continuously observed for months. Aims: The discovery and...
Lanza, A. F., Pagano, I., Leto, G., Messina, S., Aigrain, S., Alonso, R., ...
The space experiment CoRoT has recently detected transits by a hot Jupiter across the disc of an active G7V star (CoRoT-Exo-2a) that can be considered as a good proxy for the Sun at an age of...
CoRoT and stellar activity: preliminary results from the modelling of CoRoT-Exo-2a (2008)
Lanza, A. F., Pagano, I., Leto, G., Messina, S., Barge, P., Baglin, A.
We present a preliminary analysis of the photospheric activity of CoRoT-Exo-2a, a young G7V star accompanied by a transiting hot Jupiter recently discovered by CoRoT. We apply spot modelling...
Moutou, C, Bruntt, H, Guillot, T, Shporer, A, Guenther, E, Aigrain, S, ...
Aims. The CoRoT satellite has announced its fourth transiting planet (Aigrain et al. 2008, A&A, 488, L43) with space photometry. We describe and analyse complementary observations of this system...
Aigrain, S, Collier Cameron, A, 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...
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...
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...
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...
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, ...
Deleuil, M, Deeg, H, Alonso, R, Bouchy, F, Rouan, D, Auvergne, M, ...
Starting the first transit survey from space with the CoRoT satellite (2007)
Barge, P., Alonso, R., Deleuil, M., Moutou, C., Deeg, H., Erikson, Anders, ...
Could we identify hot Ocean-Planets with CoRoT, Kepler and Doppler velocimetry? (2007)
Selsis, F., Chazelas, B., Borde, P., Ollivier, M., Brachet, F., Decaudin, M., ...
Planets less massive than about 10 MEarth are expected to have no massive H-He atmosphere and a cometary composition (50% rocks, 50% water, by mass) provided they formed beyond the snowline of...
Loeillet, B., Bouchy, F., Deleuil, M., Royer, F., Bouret, J. C., Moutou, C., ...
The discovery of the short-period giant exoplanet population, the so-called hot Jupiter population, and their link to brown dwarfs and low-mass stars challenges the conventional view of planet...
The CoRoT exoplanet programme: exploring the gas-giant/terrestrial planet transition (2007)
Aigrain, S., Barge, P., Deleuil, M., Fressin, F., Moutou, C., Queloz, D., ...
CoRoT, which was launched successfully on the 27th of December 2006, is the first space mission to have the search for planetary transits at the heart of its science programme. It is expected to be...
Could we identify hot Ocean-Planets with CoRoT, Kepler and Doppler velocimetry? (2007)
Selsis, F., Chazelas, B., Borde, P., Ollivier, M., Brachet, F., Decaudin, M., ...
Planets less massive than about 10 MEarth are expected to have no massive H-He atmosphere and a cometary composition (50% rocks, 50% water, by mass) provided they formed beyond the snowline of...
Complementary observations for the COROT exoplanet program (2006)
Deleuil, M., Moutou, C., Deeg, H. J., Almenara, J. M., Meunier, J. C., Surace, C., ...
Scientific Performances for the Exoplanet Channel (2006)
Barge, P., Moutou, C., Léger, A., Bordé, D., Rouan, D., Pont, F., ...
KH15D: a star eclipsed by a large scale dusty vortex? (2005)
We propose that the large photometric variations of KH15D are due to an eclipsing swarm of solid particles trapped in giant gaseous vortex rotating at \\~0.2 AU from the star. The efficiency of the...
Two-phase disk simulations (2005)
Barge, P., Inaba, S., Daniel, E., Guillard, H.
During the first stage of planet formation solid particles and gas are coupled by aerodynamical forces. We developed a high accuracy 2D hydrodynamical code to simulate the disk evolution. Gas is...
CoRoT: a first space mission to find terrestrial planets (2005)
Barge, P., Auvergne, M., Catala, C., Michel, E., Weiss, W. W., ...
CoRoT is a space mission devoted to broadband star photometry in visible light during long observing runs. Developed by CNES with a wide european cooperation, it will be launched in 2006 with two...
An Image-Processing Method to Detect Planetary Transits: The ``Gauging'' Filter (2005)
A new method is proposed for signal denoising and transit detection in stellar photometric light curves. The plane of a light curve can be considered as a two-dimensional image that splits into two...
A two-phase code for protoplanetary disks (2005)
Barge, P., Inaba, S., Guillard, H., Daniel, E.
A high accuracy 2D hydrodynamical code has been developed to simulate the flow of gas and solid particles in protoplanetary disks. Gas is considered as a compressible fluid while solid particles,...
Moutou, C., Pont, F.(Observatoire De Genève, Sauverny, Switzerland), Barge, P., Aigrain, S., Auvergne, M., Blouin, D., ...
Because photometric surveys of exoplanet transits are very promising sources of future discoveries, many algorithms are being developed to detect transit signals in stellar light curves. This paper...
The Life of Stars and their Planets (2005)
Catala, C., Aerts, C., Aigrain, S., Antonello, E., Appourchaux, T., Auvergne, M., ...
We lack a reliable scenario for the formation and evollution of stars and their planetary systems, involving key factors such as magnetic fields and turbulence. We present the case for a mission...
algorithms on realistic synthetic light curves (2005)
C. Moutou, F. Pont, P. Barge, S. Aigrain, M. Auvergne, D. Blouin, ...
Comparative blind test of five planetary transit detection
KH15D: a star eclipsed by a large scale dusty vortex? (2003)
We propose that the large photometric variations of KH15D are due to an eclipsing swarm of solid particles trapped in giant gaseous vortex rotating at \~0.2 AU from the star. The efficiency of the...
KH15D: a star eclipsed by a large scale dusty vortex? (2003)
We propose that the large photometric variations of KH15D are due to an eclipsing swarm of solid particles trapped in giant gaseous vortex rotating at \\~0.2 AU from the star. The efficiency of the...
KH15D: a star eclipsed by a large scale dusty vortex? (2003)
We propose that the large photometric variations of KH15D are due to an eclipsing swarm of solid particles trapped in giant gaseous vortex rotating at \\~0.2 AU from the star. The efficiency of the...
DID PLANET FORMATION BEGIN INSIDE PERSISTENT GASEOUS VORTICES? (1995)
We explore here the idea, reminiscent in some respect of Von Weizsacker's (1944) and Alfven's (1976) outmoded cosmogonies, that long-lived vortices in a turbulent protoplanetary nebula can capture...
Mass Spectrum and Velocity Dispersions During Planetesimals Accumulation - II - Fragmentation (1993)
Fragmentation of the planetesimals is found to play a role whose importance is greater than previously believed and depends on the average characteristic size of the primordial planetesimals but not...