Interactions between a massive planet and a disc (2009)
Amaro-Seoane, Pau, Ribas, Ignasi, Loeckmann, Ulf, Baumgardt, Holger
We analyse the potential migration of massive planets forming far away from an inner planetary system. For this, we follow the dynamical evolution of the orbital elements of a massive planet...
Absolute properties of the low-mass eclipsing binary CM Draconis (2009)
Morales, Juan Carlos, Ribas, Ignasi, Jordi, Carme, Torres, Guillermo, Gallardo, José, Guinan, Edward F., ...
12 pages, 7 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0810.1541
CoRoT Measures Solar-Like Oscillations and Granulation in Stars Hotter Than the Sun (2008)
Michel, Eric, Baglin, Annie, Auvergne, Michel, Catala, Claude, Samadi, Reza, Baudin, Frédéric, ...
4 pages, 3 figures.-- Supporting Online Material: Text, Fig. S1, Table S1 and References, available at: http://www.sciencemag.org/cgi/content/full/322/5901/558/DC1
The case for a close-in perturber to GJ 436 b (2008)
Ribas, Ignasi, Font-Ribera, Andreu, Beaulieu, Jean-Philippe, Morales, Juan Carlos, Garcia-Melendo, Enrique
The increasing number of transiting planets raises the possibility of finding changes in their transit time, duration and depth that could be indicative of further planets in the system. Experience...
Report IAU Comm. 42, Close Binary Stars (2008)
Rucinski, Slavek M., Ribas, Ignasi, Scarfe, Colin D., Torres, Guillermo, Rucinski, Slavek M., Sion, Edward M., ...
Brief summaries are given about (1) close binary research from the perspective of the Bibliography of Close Binaries, (2) low-mass binaries and model discrepancies, (3) W UMa-type binaries, (4)...
A ~5 M_earth Super-Earth Orbiting GJ 436?: The Power of Near-Grazing Transits (2008)
Ribas, Ignasi, Font-Ribera, Andreu, Beaulieu, Jean-Philippe
Most of the presently identified exoplanets have masses similar to that of Jupiter and therefore are assumed to be gaseous objects. With the ever-increasing interest in discovering lower-mass...
CoRoT measures solar-like oscillations and granulation in stars hotter than the Sun (2008)
Michel, Eric, Baglin, Annie, Auvergne, Michel, Catala, Claude, Samadi, Reza, Baudin, Frédéric, ...
Water vapour in the atmosphere of a transiting extrasolar planet (2007)
Tinetti, Giovanna, Vidal-Madjar, Alfred, Liang, Mao-Chang, Beaulieu, Jean-Philippe, Yung, Yuk, Carey, Sean, ...
Water is predicted to be among, if not the most abundant molecular species after hydrogen in the atmospheres of close-in extrasolar giant planets (hot-Jupiters) Several attempts have been made to...
M stars as targets for terrestrial exoplanet searches and biosignature detection (2007)
Scalo, John, Kaltenegger, Lisa, Segura, Antigona, Fridlund, Malcolm, Ribas, Ignasi, Kulikov, Yu. N., ...
M stars as targets for terrestrial exoplanet searches and biosignature detection (2007)
Scalo, John, Kaltenegger, Lisa, Segura, Antigona, Fridlund, Malcolm, Ribas, Ignasi, Kulikov, Yu. N., ...
The changing view of planets orbiting low mass stars, M stars, as potentially hospitable worlds for life and its remote detection was motivated by several factors, including the demonstration of...
Ribas, Ignasi, Miralda-Escude, Jordi
We examine the distributions of eccentricity and host star metallicity of exoplanets as a function of their mass. Planets with M sin i >~ 4 M_J have an eccentricity distribution consistent with that...
Guillot, Tristan, Santos, Nuno C., Pont, Frédéric, Iro, Nicolas, Melo, Claudio, Ribas, Ignasi
Nine extrasolar planets with masses between 110 and 430M are known to transit their star. The knowledge of their masses and radii allows an estimate of their composition, but uncertainties on...
Guillot, Tristan, Santos, Nuno, Pont, Frédéric, Iro, Nicolas, Melo, Claudio, Ribas, Ignasi
Nine extrasolar planets with masses between 110 and 430M are known to transit their star. The knowledge of their masses and radii allows an estimate of their composition, but uncertainties on...
Guillot, Tristan, Santos, Nuno, Pont, Frédéric, Iro, Nicolas, Melo, Claudio, Ribas, Ignasi
Nine extrasolar planets with masses between 110 and 430M are known to transit their star. The knowledge of their masses and radii allows an estimate of their composition, but uncertainties on...
Masses and Radii of Low-Mass Stars: Theory versus Observations (2005)
Eclipsing binaries with M-type components are still rare objects. Strong observational biases have made that today only a few eclipsing binaries with component masses below 0.6 Msun and...
Binaries as Astrophysical Laboratories: Open Questions (2005)
Binary systems have long been recognized as the source of powerful astrophysical diagnostics. Among the many applications of binary stars, they have been used as probes of stellar structure and...
The impact of CoRoT on close binary research (2005)
Maceroni, Carla, Ribas, Ignasi
The space experiment CoRoT will provide continuous monitoring and high accuracy light curves of about sixty thousand stars. Selected binary systems will be observed in the Additional Program frame as...
Ribas, Ignasi, Jordi, Carme, Vilardell, Francesc, Fitzpatrick, Edward L., Hilditch, Ron W., Guinan, Edward F.
We present the first detailed spectroscopic and photometric analysis of an eclipsing binary in the Andromeda Galaxy (M31). This is a 19.3-mag semi-detached system with components of late-O and...
Guinan, Edward F., Ribas, Ignasi, Harper, Graham M.
We present and analyze FUSE observations of six solar analogs. These are single, main-sequence G0-5 strs selected as proxies for the Sun at several stages of its main-sequence lifetime. The emission...
Fundamental Properties and Distances of LMC Eclipsing Binaries: III. EROS 1044 (2002)
Ribas, Ignasi, Fitzpatrick, Edward L., Maloney, Frank P., Guinan, Edward F., Udalski, Andrzej
We present results from a detailed analysis of a third eclipsing binary (EB) system in the Large Magellanic Cloud, EROS 1044 (~B2 IV-V + ~B2 III-IV). Our study combines the "classical" EB study of...
Ribas, Ignasi, Guinan, Edward F., Fitzpatrick, Edward L., DeWarf, Laurence E., Maloney, Frank P., Maurone, Philip A., ...
We are carrying out an international, multi-wavelength program to determine the fundamental properties and independent distance estimates of selected eclipsing binaries in the LMC and SMC. Eclipsing...