76 citations · 777 across the 20 of their papers we have counts for
19 papers · 1 filter
Measuring stellar granulation during planet transits
A. Chiavassa, A. Caldas, F. Selsis +6
Stellar activity and convection-related surface structures might cause bias in planet detection and characterization that use these transits. Surface convection simulations help to…
Inferring heat recirculation and albedo for exoplanetary atmospheres: Comparing optical phase curves and secondary eclipse data
P. von Paris, P. Gratier, P. Bordé +1
Basic atmospheric properties such as albedo and heat redistribution between day and nightside have been inferred for a number of planets using observations of secondary eclipses an…
Estimating precipitation on early Mars using a radiative-convective model of the atmosphere and comparison with inferred runoff from geomorphology
P. von Paris, A. Petau, J. L. Grenfell +5
We compare estimates of atmospheric precipitation during the Martian Noachian-Hesperian boundary 3.8 Gyr ago as calculated in a radiative-convective column model of the atmosphere…
Formation, tidal evolution and habitability of the Kepler-186 system
Emeline Bolmont, Sean N. Raymond, Philip von Paris +4
The Kepler-186 system consists of five planets orbiting an early-M dwarf. The planets have physical radii of 1.0-1.50 R and orbital periods of 4 to 130 days. The R$_…
The dependence of the ice-albedo feedback on atmospheric properties
P. von Paris, F. Selsis, D. Kitzmann +1
The ice-albedo feedback is a potentially important de-stabilizing effect for the climate of terrestrial planets. It is based on the positive feedback between decreasing surface tem…
N2-associated surface warming on early Mars
P. von Paris, J. L. Grenfell, H. Rauer +1
Early Mars may have had a warmer and denser atmosphere allowing for the presence of liquid water on the surface. However, climate model studies have not been able to reproduce thes…
Potential Biosignatures in Super-Earth Atmospheres II. Photochemical Responses
J. L. Grenfell, S. Gebauer, M. Godolt +6
Spectral characterization of Super-Earth atmospheres for planets orbiting in the Habitable Zone of M-dwarf stars is a key focus in exoplanet science. A central challenge is to unde…
Spectral features of Earth-like planets and their detectability at different orbital distances around F, G, and K-type stars
Pascal Hedelt, Philip von Paris, Mareike Godolt +6
We investigate the spectral appearance of Earth-like exoplanets in the HZ of different main sequence stars at different orbital distances. We furthermore discuss for which of these…
Characterization of potentially habitable planets: Retrieval of atmospheric and planetary properties from emission spectra
P. von Paris, P. Hedelt, F. Selsis +2
An increasing number of potentially habitable terrestrial planets and planet candidates are found by ongoing planet search programs. The search for atmospheric signatures to establ…
Atmospheric constraints for the CO2 partial pressure on terrestrial planets near the outer edge of the habitable zone
Philip von Paris, J. Lee Grenfell, Pascal Hedelt +3
In recent years, several potentially habitable, probably terrestrial exoplanets and exoplanet candidates have been discovered. The amount of CO2 in their atmosphere is of great imp…
Spectroscopic characterization of the atmospheres of potentially habitable planets: GL 581 d as a model case study
Philip von Paris, Juan Cabrera, Mareike Godolt +5
(abridged) The Super-Earth candidate GL 581 d is the first potentially habitable extrasolar planet. Therefore, GL 581 d is used to illustrate a hypothetical detailed spectroscopic…
Clouds in the atmospheres of extrasolar planets. III. Impact of low and high-level clouds on the reflection spectra of Earth-like planets
D. Kitzmann, A. B. C. Patzer, P. von Paris +2
We study the influence of low-level water and high-level ice clouds on low-resolution reflection spectra and planetary albedos of Earth-like planets orbiting different types of sta…
Clouds in the atmospheres of extrasolar planets. II. Thermal emission spectra of Earth-like planets influenced by low and high-level clouds
D. Kitzmann, A. B. C. Patzer, P. von Paris +2
We study the impact of multi-layered clouds (low-level water and high-level ice clouds) on the thermal emission spectra of Earth-like planets orbiting different types of stars. Clo…
Atmospheric studies of habitability in the Gliese 581 system
P. von Paris, S. Gebauer, M. Godolt +2
The M-type star Gliese 581 is orbited by at least one terrestrial planet candidate in the habitable zone, i.e. GL 581 d. Orbital simulations have shown that additional planets insi…
Constraints on the exosphere of CoRoT-7b
E. W. Guenther, J. Cabrera, A. Erikson +8
CONTEXT: The small radius and high density of CoRoT-7b implies that this transiting planet belongs to a differen t species than all transiting planets previously found. Current mod…
Sensitivity of Biomarkers to Changes in Chemical Emissions in the Earth's Proterozoic Atmosphere
John Lee Grenfell, Stefanie Gebauer, Philip von Paris +5
The search for life beyond the Solar System is a major activity in exoplanet science. However, even if an Earth-like planet were to be found, it is unlikely to be at a similar stag…
The extrasolar planet GL 581 d: A potentially habitable planet?
P. von Paris, S. Gebauer, M. Godolt +6
The planetary system around the M star Gliese 581 contains at least three close-in potentially low-mass planets, GL 581 c, d, and e. In order to address the question of the habitab…
Transiting exoplanets from the CoRoT space mission. XIII. CoRoT-13b: a dense hot Jupiter in transit around a star with solar metallicity and super-solar lithium content
J. Cabrera, H. Bruntt, M. Ollivier +45
We announce the discovery of the transiting planet CoRoT-13b. Ground based follow-up in CFHT and IAC80 confirmed CoRoT's observations. The mass of the planet was measured with the…
Clouds in the atmospheres of extrasolar planets. I. Climatic effects of multi-layered clouds for Earth-like planets and implications for habitable zones
D. Kitzmann, A. B. C. Patzer, P. von Paris +5
The effects of multi-layered clouds in the atmospheres of Earth-like planets orbiting different types of stars are studied. The radiative effects of cloud particles are directly co…