Deciphering Spectral Fingerprints of Habitable Extrasolar Planets (2009)
Kaltenegger, L., Selsis, F., Fridlund, M., Lammer, H., Beichman, Ch., Danchi, W., ...
In this paper we discuss how we can read a planets spectrum to assess its habitability and search for the signatures of a biosphere. After a decade rich in giant exoplanet detections, observation...
Characterizing Habitable Extrasolar Planets using Spectral Fingerprints (2009)
The detection and characterization of Earth-like planet is approaching rapidly thanks to radial velocity surveys (HARPS), transit searches (Corot, Kepler) and space observatories dedicated to their...
Darwin —- a mission to detect and search for life on extrasolar planets (2009)
Cockell, C. S., Léger, A., Fridlund, M., Herbst, T. M., Kaltenegger, L., Absil, O., ...
The discovery of extrasolar planets is one of the greatest achievements of modern astronomy. The detection of planets that vary widely in mass demonstrates that extrasolar planets of low mass exist....
Darwin-A Mission to Detect and Search for Life on Extrasolar Planets (2009)
Cockell, C S, Léger, A, Fridlund, M, Herbst, T M, Kaltenegger, L, Absil, Olivier, ...
The discovery of extrasolar planets is one of the greatest achievements of modern astronomy. The detection of planets that vary widely in mass demonstrates that extrasolar planets of low mass exist....
Ollivier, M, Absil, Olivier, Allard, F, Berger, J-P, Bordé, P, Cassaing, F, ...
PEGASE is a mission dedicated to the exploration of the environment (including habitable zone) of young and solar-type stars (particularly those in the DARWIN catalogue) and the observation of low...
ESA White paper: Atmospheric modeling: Setting Biomarkers in context (2008)
Motivation: ESAs goal to detect biomarkers in Earth-like exoplanets in the Habitable Zone requires theoretical groundwork that needs to be done to model the influence of different parameters on the...
Using SPICA Space Telescope to characterize Exoplanets (2008)
Goicoechea, J. R., Swinyard, B., Tinetti, G., Nakagawa, T., Enya, K., Tamura, M., ...
We present the 3.5m SPICA space telescope, a proposed Japanese-led JAXA-ESA mission scheduled for launch around 2017. The actively cooled ( 18 um). SPICA is one of the few space missions selected to...
DARWIN - A Mission to Detect, and Search for Life on, Extrasolar Planets (2008)
Cockell, C. S., Leger, A., Fridlund, M., Herbst, T., Kaltenegger, L., Absil, O., ...
The discovery of extra-solar planets is one of the greatest achievements of modern astronomy. The detection of planets with a wide range of masses demonstrates that extra-solar planets of low mass...
Energetic neutral atoms as the explanation for the high velocity hydrogen around HD 209458b (2008)
Holmström, M., Ekenbäck, A., Selsis, F., Penz, T., Lammer, H., Wurz, P.
Absorption in the stellar Lyman-$\alpha$ (Ly-$\alpha$) line observed during the transit of the extrasolar planet HD 209458b reveals high velocity atomic hydrogen at great distances from the planet....
H. Lammer, F. Selsis, I. Ribas, E. F. Guinan, S. J. Bauer, W. W. Weiss
Past studies addressing thermal atmospheric escape of hydrogen from “Hot Jupiters ” have been based on the planet’s effective temperature, which, as we show here, is not physically relevant for...
Biomarkers set in context (2007)
In a famous paper, Sagan et al.(1993) analyzed a spectrum of the Earth taken by the Galileo probe, searching for signatures of life. They concluded that the large amount of O2 and the simultaneous...
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...
Water vapour in the atmosphere of a transiting extrasolar planet (2007)
Tinetti, G., Vidal-Madjar, A., Yung, Y., Carey, S., ...
Water is predicted to be among the most abundant (if not the most abundant) molecular species after hydrogen in the atmospheres of close-in extrasolar giant planets ('hot Jupiters'). Several attempts...
A New Family of Planets ? \"Ocean Planets\" (2007)
Leger, A., Selsis, F., Sotin, C., Guillot, T., Despois, D., Mawet, D., ...
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: \"Ocean-Planets\". We present the possible formation, composition and internal models of these...
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...
Roche lobe effects on the atmospheric loss of "Hot Jupiters" (2006)
Erkaev, N. V., Lammer, H., Kulikov, Yu. N., Langmayr, D., Selsis, F., Jaritz, G. F., ...
Observational evidence of a hydrodynamically evaporating upper atmosphere of HD209458b (Vidal-Madjar et al. 2003; 2004) and recent theoretical studies on evaporation scenarios of ``Hot Jupiters'' in...
Gaseous Planets, Protostars And Young Brown Dwarfs : Birth And Fate (2006)
Chabrier, G., Baraffe, I., Selsis, F., Barman, T., Hennebelle, P., Alibert, Y.
We review recent theoretical progress aimed at understanding the formation and the early stages of evolution of giant planets, low-mass stars and brown dwarfs. Calculations coupling giant planet...
Wakelam, Valentine, Herbst, Eric, Selsis, F., Massacrier, Gérard
Aim: To determine whether or not gas-phase chemical models with homogeneous and time-independent physical conditions explain the many observed molecular abundances in astrophysical sources, it is...
Vérinaud, C., Hubin, N., Kasper, M., Antichi, J., Baudoz, P., Beuzit, J. L., ...
The Exo-Planets Imaging Camera and Spectrograph (EPICS), is the Planet Finder Instrument concept for the European Extremely Large Telescope (ELT). The study made in the frame of the OWL 100-m...
The EPICS project: Exoplanets detection with OWL (2006)
Verinaud, C., Hubin, N., Kasper, M., Antichi, J., Baudoz, P., Beuzit, J.L., ...
This paper presents the status of the EPICS project, an Earth-like Planets Imaging Camera Spectrograph for OWL. We present the Top-Level-Requirements of the instrument and we describe the baseline of...
Vérinaud, C., Hubin, N., Kasper, M., Antichi, J., Baudoz, P., Beuzit, J.L., ...
The Exo-Planets Imaging Camera and Spectrograph (EPICS), is the Planet Finder Instrument concept for the European Extremely Large Telescope (ELT). The study made in the frame of the OWL 100-m...
Science cases for the OWL Earth-like planet imager and spectrograph (EPICS) (2006)
Beuzit, J.L., Gratton, R., Kasper, M., Desidera, S., Kerber, F., Rahoui, F., ...
The extreme contrast in mass and luminosity between the extra-solar planets and their host stars make detailed studies of these planets very challenging. In particular, direct observations of...
Wakelam, Valentine, Herbst, Eric, Selsis, F., Massacrier, Gérard
Aim: To determine whether or not gas-phase chemical models with homogeneous and time-independent physical conditions explain the many observed molecular abundances in astrophysical sources, it is...
The effect of evaporation on the evolution of close-in giant planets (2005)
Baraffe, I., Selsis, F., Chabrier, Gilles, Barman, T. S., Allard, F., Hauschildt, P. H., ...
We include the effect of evaporation in our evolutionary calculations of close-in giant planets, based on a recent model for thermal evaporation taking into account the XUV flux of the parent star...
Radiative Habitable Zones in Martian Polar Environments (2005)
Cordoba-Jabonero, C., Selsis, F., Patel, M. R., Cockell, C. S.
The biologically damaging solar ultraviolet (UV) radiation (quantified by the DNA-weighted dose) reaches the Martian surface in extremely high levels. Searching for potentially habitable UV-protected...
Hot-Jupiters and hot-Neptunes: a common origin? (2005)
Baraffe, I., Chabrier, G., Barman, T. S., Selsis, F., Allard, F., Hauschildt, P. H.
We compare evolutionary models for close-in exoplanets coupling irradiation and evaporation due respectively to the thermal and high energy flux of the parent star with observations of recently...
UNCERTAINTIES IN THE CHEMICAL MODELING OF HOT CORES (2005)
Wakelam, V., Selsis, F., Herbst, E., Caselli, P.
Author Institution: Department of Physics, The Ohio State University, Columbus OH; CRAL-ENSL, Lyon France; Department of Physics,The Ohio State University, Columbus OH; Osservatorio di Arcetri,...
The effect of evaporation on the evolution of close-in giant planets (2004)
Baraffe, I., Selsis, F., Chabrier, G., Barman, T. S., Allard, F., Hauschildt, P. H., ...
We include the effect of evaporation in our evolutionary calculations of close-in giant planets, based on a recent model for thermal evaporation taking into account the XUV flux of the parent star...
The effect of evaporation on the evolution of close-in giant planets (2004)
Baraffe, I., Selsis, F., Chabrier, Gilles, Barman, T. S., Allard, F., Hauschildt, P. H., ...
We include the effect of evaporation in our evolutionary calculations of close-in giant planets, based on a recent model for thermal evaporation taking into account the XUV flux of the parent star...
The effect of evaporation on the evolution of close-in giant planets (2004)
Baraffe, I., Selsis, F., Chabrier, Gilles, Barman, T. S., Allard, F., Hauschildt, P. H., ...
We include the effect of evaporation in our evolutionary calculations of close-in giant planets, based on a recent model for thermal evaporation taking into account the XUV flux of the parent star...
A New Family of Planets ? \"Ocean Planets\" (2004)
Leger, A., Selsis, F., Sotin, C., Guillot, T., Despois, D., Mawet, D., ...
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: \"Ocean-Planets\". We present the possible formation, composition and internal models of these...
Submitted to Icarus notes version 15 Jan. 04 (2004)
New Family Of, A. Léger, F. Selsis, C. Sotin, T. Guillot, D. Despois, ...
A new family of planets is considered which is in between the rocky terrestrial planets and the gaseous giants, "Ocean-Planets". We present the possible formation, composition and internal...
A New Family of Planets ? "Ocean Planets" (2003)
Leger, A., Selsis, F., Sotin, C., Guillot, T., Despois, D., Lammer, H., ...
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these...
Patel, M. R., Bérces, A., Kolb, C., Lammer, H., Rettberg, P., Zarnecki, J. C., ...
The issue of the variation of the surface ultraviolet (UV) environment on Mars was investigated with particular emphasis being placed on the interpretation of data in a biological context. A UV model...
A New Family of Planets ? \"Ocean Planets\" (2003)
Leger, A., Selsis, F., Sotin, C., Guillot, T., Despois, D., Mawet, D., ...
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: \"Ocean-Planets\". We present the possible formation, composition and internal models of these...