Fortney, Jonathan J., Zahnle, Kevin, Baraffe, Isabelle, Burrows, Adam, Dodson-Robinson, Sarah E., Chabrier, Gilles, ...
The determination of Saturn's atmospheric noble gas abundances are critical to understanding the formation and evolution of Saturn, and giant planets in general. These measurements can only be...
Analytical theory for the initial mass function: II. Properties of the flow (2009)
Hennebelle, Patrick, Chabrier, Gilles
Recently, Hennebelle and Chabrier (2008) derived an analytical theory for the mass spectrum of non self-gravitating clumps associated with overdensities in molecular clouds and for the initial mass...
Bridging the Gap Between Stars and Planets: The Formation and Early Evolution of Brown Dwarfs (2009)
Mohanty, Subhanjoy, Burgasser, Adam, Chabrier, Gilles, Padoan, Paolo, Hennebelle, Patrick, Pascucci, Ilaria, ...
This White Paper, submitted to the National Academy of Sciences' Astro2010 Decadal Review Committee, focuses on 2 central themes in the study of young brown dwarfs -- their formation mechanism and...
Gallardo, Jose, Baraffe, Isabelle, Chabrier, Gilles
In the poster presented in Cool Star 15, we analyzed the effect of disk accretion on the evolution of very low mass pre-main sequence stars and young brown dwarfs and the resulting uncertainties on...
Analytical theory for the initial mass function: CO clumps and prestellar cores (2008)
Hennebelle, Patrick, Chabrier, Gilles
We derive an analytical theory of the prestellar core initial mass function based on an extension of the Press-Schechter statistical formalism. With the same formalism, we also obtain the mass...
Model X-ray Spectra of Magnetic Neutron Stars with Hydrogen Atmospheres (2008)
Ho, Wynn C. G., Potekhin, Alexander Y., Chabrier, Gilles
We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with fixed surface fields between B=10^12 and 2x10^13 G and effective temperatures...
MODELING SPECTRAL FEATURES FROM ISOLATED NEUTRON STARS (2008)
Dong Lai, Er Y. Potekhin, Gilles Chabrier
Abstract We study several effects that influence the strength of the proton cyclotron and atomic features in the thermal spectra of magnetic neutron stars. Magnetic field variations over the neutron...
Protostellar collapse: A comparison between SPH and AMR calculations (2008)
Commercon, Benoit, Hennebelle, Patrick, Audit, Edouard, Chabrier, Gilles, Teyssier, Romain
The development of parallel supercomputers allows today the detailed study of the collapse and the fragmentation of prestellar cores with increasingly accurate numerical simulations. Thanks to the...
M. Kramer, N. Wex, R. Wielebinski, Alexander Potekhin, Gilles Chabrier, Yuri Shibanov
. We study equilibrium properties of partially ionized hydrogen atmospheres and subphotospheric layers of weakly (with magnetic eld B 10 9 G) and strongly (B 10 10 G) magnetized neutron stars. In...
Structure and Evolution of Low-Mass Stars (2007)
Gilles Chabrier And, Gilles Chabrier, Isabelle Baraffe
. We present extensive calculations of the structure and the evolution of low-mass stars in the range 0.070. 8 M fi , for metallicities \Gamma2:0 [M=H] 0:0. These calculations are based on the most...
Cooling Neutron Stars With Accreted Envelopes (2007)
Gilles Chabrier, Er Y. Potekhin, Dmitry G. Yakovlev
The relationships between the effective surface temperature T eff and internal temperature T b of nonmagnetized neutron stars with and without accreted envelopes are calculated for T eff ? 5 \Theta...
Equation Of State And Opacities For Hydrogen Atmospheres Of (2007)
Neutron Stars With, Alexander Y. Potekhin, Gilles Chabrier
We present an equation of state and radiative opacities for a strongly magnetized hydrogen plasma at magnetic fields B, temperatures T, and densities # typical for atmospheres of isolated neutron...
Atmospheres Of Magnetized Neutron Stars: (2007)
Vacuum Polarization And, Dong Lai, Er Y. Potekhin, Gilles Chabrier
We construct hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface elds B = 10 510 G and eective temperatures T e a few10 K by solving the full radiative...
The Thermal Evolution of the Donors in AM CVn Binaries (2007)
Deloye, Christopher J., Taam, Ronald E., Winisdoerffer, Christopher, Chabrier, Gilles
(Abridged) We calculate the full stellar-structural evolution of donors in AM CVn systems formed through the WD channel coupled to the binary's evolution. Contrary to assumptions made in prior...
Evolution of low-mass star and brown dwarf eclipsing binaries (2007)
Chabrier, Gilles, Gallardo, Jose, Baraffe, Isabelle
We examine the evolution of low-mass star and brown dwarf eclipsing binaries. These objects are rapid rotators and are believed to shelter large magnetic fields. We suggest that reduced convective...
Heat transport in giant (exo)planets: a new perspective (2007)
Chabrier, Gilles, Baraffe, Isabelle
We explore the possibility that large-scale convection be inhibited over some regions of giant planet interiors, as a consequence of a gradient of composition inherited either from their formation...
Formation and structure of the three Neptune-mass planets system around HD69830 (2007)
Alibert, Yann, Baraffe, Isabelle, Benz, Willy, Chabrier, Gilles, Mordasini, Christophe, Lovis, Christophe, ...
Since the discovery of the first giant planet outside the solar system in 1995 (Mayor & Queloz 1995), more than 180 extrasolar planets have been discovered. With improving detection capabilities, a...
Tidal dissipation within hot Jupiters: a new appraisal (2007)
Levrard, Benjamin, Correia, Alexandre Morgado, Chabrier, Gilles, Baraffe, Isabelle, Selsis, Franck, Laskar, Jacques
Eccentricity or obliquity tides have been proposed as the missing energy source that may explain the anomalously large radius of some transiting ``hot Jupiters''. To maintain a non-zero and large...
Tidal dissipation within hot Jupiters: a new appraisal (2007)
Levrard, Benjamin, Correia, Alexandre Morgado, Chabrier, Gilles, Baraffe, Isabelle, Selsis, Franck, Laskar, Jacques
Eccentricity or obliquity tides have been proposed as the missing energy source that may explain the anomalously large radius of some transiting ``hot Jupiters''. To maintain a non-zero and large...
Tidal dissipation within hot Jupiters: a new appraisal (2006)
Levrard, Benjamin, Correia, Alexandre Morgado, Chabrier, Gilles, Baraffe, Isabelle, Selsis, Franck, Laskar, Jacques
Eccentricity or obliquity tides have been proposed as the missing energy source that may explain the anomalously large radius of some transiting ``hot Jupiters''. To maintain a non-zero and large...
Thermal Evolution of AM CVn Binary Donors (2006)
Deloye, Christopher J., Taam, Ronald E., Winisdoerffer, Christophe, Chabrier, Gilles
We discuss results of our study on AM CVn binaries formed with donors that never ignited He before contact. For the first time, we treat the donor's in these systems in the context of a full stellar...
Formation and structure of the three Neptune-mass planets system around HD69830 (2006)
Alibert, Yann, Baraffe, Isabelle, Benz, Willy, Chabrier, Gilles, Mordasini, Christophe, Lovis, Christophe, ...
Since the discovery of the first giant planet outside the solar system in 1995 (Mayor & Queloz 1995), more than 180 extrasolar planets have been discovered. With improving detection capabilities, a...
The initial mass function : from Salpeter 1955 to 2005 (2005)
Fifty years after Ed Salpeter's seminal paper, tremendous progress both on the observational and theoretical sides allow a fairly accurate determination of the Galactic IMF not only down to the...
The glow of primordial remnants (2005)
We determine the expected surface brightness and photometric signature of a white dwarf remnant population, issued from primordial low-mass stars formed at high redshifts, in today galactic halos. We...
Chabrier, Gilles, Potekhin, A. Y., Yakovlev, D. G.
We briefly review recent theoretical studies of the effects of accreted envelopes, magnetic fields and crustal superfluidity on the cooling of neutron stars. These effects are especially important...
The physics of extrasolar gaseous planets : from theory to observable signatures (2005)
Chabrier, Gilles, Allard, F., Baraffe, I., Barman, T., Hauschildt, P. H.
We review our present understanding of the physical properties of substellar objects, brown dwarfs and irradiated or non-irradiated gaseous exoplanets. This includes a description of their internal...
The evolution of irradiated planets. Application to transits (2005)
Chabrier, Gilles, Barman, T., Baraffe, I., Allard, F., Hauschildt, P.
Extending the theory we derived recently for HD209458b to different cases of strongly irradiated gaseous exoplanets, we have calculated the consistent evolution of the new transiting planet,...
Galactic Stellar and Substellar Initial Mass Function (2005)
We review recent determinations of the present day and initial mass functions in various components of the Galaxy, disk, spheroid, young and globular clusters. As a general feature, the IMF is well...
The Galactic disk mass function: reconciliation of the HST and nearby determinations (2005)
We derive and parametrize the Galactic mass function (MF) below 1 $\\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived...
The Galactic disk mass-budget : I. stellar mass-function and density (2005)
In this paper, we use the general theory worked out within the past few years for the structure and the evolution of low-mass stars to derive the stellar mass-function in the Galactic disk down to...
Chabrier, Gilles, Brassard, Pierre, Fontaine, Gilles, Saumon, Didier
We present new cooling sequences, color-magnitude diagrams, and color-color diagrams for cool white dwarfs with pure hydrogen atmospheres down to an effective temperature $\\te=1500$ K. We include a...
Deuterium-burning in substellar objects (2005)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We consider the depletion of primordial deuterium in the interior of substellar objects as a function of mass, age and absolute magnitude in several photometric passbands. We characterize potential...
Theory of Low-Mass Stars and Substellar Objects (2005)
Since the discovery of the first bona-fide brown dwarfs and extra-solar planets in 1995, the field of low mass stars and substellar objects has considerably progressed, both from theoretical and...
Evolutionary models for very-low-mass stars and brown dwarfs with dusty atmospheres (2005)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We present evolutionary calculations for very-low-mass stars and brown dwarfs based on synthetic spectra and non-grey atmosphere models which include dust formation and opacity, i.e. objects with...
Free-energy model for fluid helium at high density (2005)
Winisdoerffer, Christophe, Chabrier, Gilles
We present a semi-analytical free-energy model aimed at characterizing the thermodynamic properties of dense fluid helium, from the low-density atomic phase to the high-density fully ionized regime....
Large-scale alpha^2-dynamo in low-mass stars and brown dwarfs (2005)
Chabrier, Gilles, Kueker, Manfred
We develop a model based on 3D mean-field MHD for the generation of large scale magnetic fields in fully convective objects like low-mass stars, brown dwarfs and possibly gaseous planets. The dynamo...
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.H.
We analyse pre-Main Sequence evolutionary tracks for low mass stars with masses $m \\le 1.4 \\msol$ based on the Baraffe et al. (1998) input physics. We also extend the recent Chabrier et al. (2000)...
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...
Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945 (2005)
Baraffe, I., Chabrier, Gilles, Barman, T., Allard, F., Hauschildt, P. H.
We present evolutionary models for cool brown dwarfs and extra-solar giant planets. The models reproduce the main trends of observed methane dwarfs in near-IR color-magnitude diagrams. We also...
Pre-Main Sequence models for low-mass stars and brown dwarfs (2005)
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.
We present evolutionary models for low mass stars and brown dwarfs ($m \\le 1.2 \\msol$) based on recent improvement of the theory: equation of state, atmosphere models, ... We concentrate on early...
Source blending effects on microlensing time-histograms and optical depth determination (2005)
Alibert, Yann, Chabrier, Gilles, Massacrier, Gerard
Source blending in microlensing experiments is known to modify the Einstein time of the observed events. In this paper, we have conducted Monte-Carlo calculations, using the analytical relationships...
Free-energy model for fluid helium at high density (2004)
Winisdoerffer, Christophe, Chabrier, Gilles
We present a semi-analytical free-energy model aimed at characterizing the thermodynamic properties of dense fluid helium, from the low-density atomic phase to the high-density fully ionized regime....
The initial mass function : from Salpeter 1955 to 2005 (2004)
Fifty years after Ed Salpeter's seminal paper, tremendous progress both on the observational and theoretical sides allow a fairly accurate determination of the Galactic IMF not only down to the...
Microcanonical calculations of excess thermodynamic properties of dense binary systems (2004)
Winisdoerffer, Christophe, Chabrier, Gilles, Zérah, Gilles
We derive a new formulation to calculate the excess chemical potential of a fraction of $N_1$ particles interacting with $N_2$ particles of a different species. The excess chemical potential is...
The glow of primordial remnants (2004)
We determine the expected surface brightness and photometric signature of a white dwarf remnant population, issued from primordial low-mass stars formed at high redshifts, in today galactic halos. We...
The initial mass function : from Salpeter 1955 to 2005 (2004)
Fifty years after Ed Salpeter's seminal paper, tremendous progress both on the observational and theoretical sides allow a fairly accurate determination of the Galactic IMF not only down to the...
The glow of primordial remnants (2004)
We determine the expected surface brightness and photometric signature of a white dwarf remnant population, issued from primordial low-mass stars formed at high redshifts, in today galactic halos. We...
Chabrier, Gilles, Potekhin, A. Y., Yakovlev, D. G.
We briefly review recent theoretical studies of the effects of accreted envelopes, magnetic fields and crustal superfluidity on the cooling of neutron stars. These effects are especially important...
The physics of extrasolar gaseous planets : from theory to observable signatures (2004)
Chabrier, Gilles, Allard, F., Baraffe, I., Barman, T., Hauschildt, P. H.
We review our present understanding of the physical properties of substellar objects, brown dwarfs and irradiated or non-irradiated gaseous exoplanets. This includes a description of their internal...
The evolution of irradiated planets. Application to transits (2004)
Chabrier, Gilles, Barman, T., Baraffe, I., Allard, F., Hauschildt, P.
Extending the theory we derived recently for HD209458b to different cases of strongly irradiated gaseous exoplanets, we have calculated the consistent evolution of the new transiting planet,...
Free-energy model for fluid helium at high density (2004)
Winisdoerffer, Christophe, Chabrier, Gilles
We present a semi-analytical free-energy model aimed at characterizing the thermodynamic properties of dense fluid helium, from the low-density atomic phase to the high-density fully ionized regime....
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 initial mass function : from Salpeter 1955 to 2005 (2004)
Fifty years after Ed Salpeter's seminal paper, tremendous progress both on the observational and theoretical sides allow a fairly accurate determination of the Galactic IMF not only down to the...
The glow of primordial remnants (2004)
We determine the expected surface brightness and photometric signature of a white dwarf remnant population, issued from primordial low-mass stars formed at high redshifts, in today galactic halos. We...
Chabrier, Gilles, Potekhin, A. Y., Yakovlev, D. G.
We briefly review recent theoretical studies of the effects of accreted envelopes, magnetic fields and crustal superfluidity on the cooling of neutron stars. These effects are especially important...
The physics of extrasolar gaseous planets : from theory to observable signatures (2004)
Chabrier, Gilles, Allard, F., Baraffe, I., Barman, T., Hauschildt, P. H.
We review our present understanding of the physical properties of substellar objects, brown dwarfs and irradiated or non-irradiated gaseous exoplanets. This includes a description of their internal...
The evolution of irradiated planets. Application to transits (2004)
Chabrier, Gilles, Barman, T., Baraffe, I., Allard, F., Hauschildt, P.
Extending the theory we derived recently for HD209458b to different cases of strongly irradiated gaseous exoplanets, we have calculated the consistent evolution of the new transiting planet,...
Free-energy model for fluid helium at high density (2004)
Winisdoerffer, Christophe, Chabrier, Gilles
We present a semi-analytical free-energy model aimed at characterizing the thermodynamic properties of dense fluid helium, from the low-density atomic phase to the high-density fully ionized regime....
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...
MAGNETIC FIELDS AND NEUTRON STAR ATMOSPHERE MODELS (2004)
Er Y. Potekhin, Dong Lai, Gilles Chabrier
The polarizability tensor of a strongly magnetized plasma and the polarization vectors and opacities of normal electromagnetic waves are studied for conditions typical of neutron star atmospheres,...
Ho, Wynn C. G., Lai, Dong, Potekhin, Alexander Y., Chabrier, Gilles
We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5 \times 10^14 G and effective temperatures T_eff \sim a...
Galactic Stellar and Substellar Initial Mass Function (2003)
We review recent determinations of the present day and initial mass functions in various components of the Galaxy, disk, spheroid, young and globular clusters. As a general feature, the IMF is well...
The Galactic disk mass function: reconciliation of the HST and nearby determinations (2003)
We derive and parametrize the Galactic mass function (MF) below 1 $\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived...
Galactic Stellar and Substellar Initial Mass Function (2003)
We review recent determinations of the present day and initial mass functions in various components of the Galaxy, disk, spheroid, young and globular clusters. As a general feature, the IMF is well...
The Galactic disk mass function: reconciliation of the HST and nearby determinations (2003)
We derive and parametrize the Galactic mass function (MF) below 1 $\\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived...
Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945 (2003)
Baraffe, I., Chabrier, Gilles, Barman, T., Allard, F., Hauschildt, P. H.
We present evolutionary models for cool brown dwarfs and extra-solar giant planets. The models reproduce the main trends of observed methane dwarfs in near-IR color-magnitude diagrams. We also...
Galactic Stellar and Substellar Initial Mass Function (2003)
We review recent determinations of the present day and initial mass functions in various components of the Galaxy, disk, spheroid, young and globular clusters. As a general feature, the IMF is well...
The Galactic disk mass function: reconciliation of the HST and nearby determinations (2003)
We derive and parametrize the Galactic mass function (MF) below 1 $\\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived...
Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945 (2003)
Baraffe, I., Chabrier, Gilles, Barman, T., Allard, F., Hauschildt, P. H.
We present evolutionary models for cool brown dwarfs and extra-solar giant planets. The models reproduce the main trends of observed methane dwarfs in near-IR color-magnitude diagrams. We also...
Thermal Structure and Cooling of Superfluid Neutron Stars with Accreted Magnetized Envelopes (2003)
Alexander Y. Potekhin, Dmitry G. Yakovlev, Gilles Chabrier, Oleg Y. Gnedin
We study the thermal structure of neutron stars with magnetized envelopes composed of accreted material, using updated thermal conductivities of plasmas in quantizing magnetic fields, as well as the...
Atmospheres of Magnetized Neutron Stars: Vacuum Polarization and Partially Ionized Models (2002)
Ho, Wynn C. G., Lai, Dong, Potekhin, Alexander Y., Chabrier, Gilles
We construct hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5x10^14 G and effective temperatures T_eff a few x 10^5-10^6 K by solving the...
Activity in Very Cool Stars: Magnetic Dissipation in late-M and L Dwarf Atmospheres (2002)
Mohanty, Subhanjoy, Basri, Gibor, Shu, Frank, Allard, France, Chabrier, Gilles
Recent observations show that chromospheric activity in late-M and L dwarfs is much lower than in the earlier M types, in spite of comparatively rapid rotation. We investigate the possibility that...
The Galactic disk mass-budget : II. Brown dwarf mass-function and density (2001)
In this paper, we extend the calculations conducted previously in the stellar regime to determine the brown dwarf IMF in the Galactic disk. We perform Monte Carlo calculations taking into account the...
The Galactic disk mass-budget : I. stellar mass-function and density (2001)
In this paper, we use the general theory worked out within the past few years for the structure and the evolution of low-mass stars to derive the stellar mass-function in the Galactic disk down to...
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.H.
We analyse pre-Main Sequence evolutionary tracks for low mass stars with masses $m \\le 1.4 \\msol$ based on the Baraffe et al. (1998) input physics. We also extend the recent Chabrier et al. (2000)...
The Galactic disk mass-budget : I. stellar mass-function and density (2001)
In this paper, we use the general theory worked out within the past few years for the structure and the evolution of low-mass stars to derive the stellar mass-function in the Galactic disk down to...
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.H.
We analyse pre-Main Sequence evolutionary tracks for low mass stars with masses $m \\le 1.4 \\msol$ based on the Baraffe et al. (1998) input physics. We also extend the recent Chabrier et al. (2000)...
Chabrier, Gilles, Brassard, Pierre, Fontaine, Gilles, Saumon, Didier
We present new cooling sequences, color-magnitude diagrams, and color-color diagrams for cool white dwarfs with pure hydrogen atmospheres down to an effective temperature $\te=1500$ K. We include a...
Chabrier, Gilles, Brassard, Pierre, Fontaine, Gilles, Saumon, Didier
We present new cooling sequences, color-magnitude diagrams, and color-color diagrams for cool white dwarfs with pure hydrogen atmospheres down to an effective temperature $\\te=1500$ K. We include a...
Deuterium-burning in substellar objects (2000)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We consider the depletion of primordial deuterium in the interior of substellar objects as a function of mass, age and absolute magnitude in several photometric passbands. We characterize potential...
Theory of Low-Mass Stars and Substellar Objects (2000)
Since the discovery of the first bona-fide brown dwarfs and extra-solar planets in 1995, the field of low mass stars and substellar objects has considerably progressed, both from theoretical and...
Evolutionary models for very-low-mass stars and brown dwarfs with dusty atmospheres (2000)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We present evolutionary calculations for very-low-mass stars and brown dwarfs based on synthetic spectra and non-grey atmosphere models which include dust formation and opacity, i.e. objects with...
Pre-Main Sequence models for low-mass stars and brown dwarfs (2000)
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.
We present evolutionary models for low mass stars and brown dwarfs ($m \\le 1.2 \\msol$) based on recent improvement of the theory: equation of state, atmosphere models, ... We concentrate on early...
Chabrier, Gilles, Brassard, Pierre, Fontaine, Gilles, Saumon, Didier
We present new cooling sequences, color-magnitude diagrams, and color-color diagrams for cool white dwarfs with pure hydrogen atmospheres down to an effective temperature $\\te=1500$ K. We include a...
Deuterium-burning in substellar objects (2000)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We consider the depletion of primordial deuterium in the interior of substellar objects as a function of mass, age and absolute magnitude in several photometric passbands. We characterize potential...
Theory of Low-Mass Stars and Substellar Objects (2000)
Since the discovery of the first bona-fide brown dwarfs and extra-solar planets in 1995, the field of low mass stars and substellar objects has considerably progressed, both from theoretical and...
Evolutionary models for very-low-mass stars and brown dwarfs with dusty atmospheres (2000)
Chabrier, Gilles, Baraffe, I., Allard, F., Hauschildt, P.
We present evolutionary calculations for very-low-mass stars and brown dwarfs based on synthetic spectra and non-grey atmosphere models which include dust formation and opacity, i.e. objects with...
Pre-Main Sequence models for low-mass stars and brown dwarfs (2000)
Baraffe, I., Chabrier, Gilles, Allard, F., Hauschildt, P.
We present evolutionary models for low mass stars and brown dwarfs ($m \\le 1.2 \\msol$) based on recent improvement of the theory: equation of state, atmosphere models, ... We concentrate on early...
The physics of brown dwarfs (1999)
We briefly outline the physics underlying the mechanical and thermal properties of brown dwarfs, which characterizes their interiors and their atmospheres. We mention the most recent improvements...
Is Galactic Dark Matter White ? (1999)
We calculate the expected white dwarf luminosity functions and discovery functions in photometric passbands, if these stellar remnants provide a substantial fraction of the sought Galactic dark...
Baraffe, Isabelle, Chabrier, Gilles, Allard, France, Hauschildt, Peter
We present evolutionary models for low mass stars from 0.075 to 1 $\msol$ for solar-type metallicities [M/H]= 0 and -0.5. The calculations include the most recent interior physics and the latest...
The effect of electron gas polarization on thermonuclear reaction rates in dense stars (1998)
Sahrling, Mikael, Chabrier, Gilles
In dense stars the nuclear reaction rates are influenced by screening effects arising from both ions and electrons. In this paper we calculate the enhancement factors due to electron polarization in...
Theory of low-mass stars, brown dwarfs and extra-solar giant planets (1997)
Chabrier, Gilles, Baraffe, Isabelle
We present a review of the most recent improvements in the theory of low-mass star-like objects, in the stellar and sub-stellar domains. Comparison is made with various recent observations.
Cool white dwarfs : cooling theory and Galactic implications (1997)
We summarize recent improvements in model atmosphere and internal structure of faint white dwarfs. We derive an analytical cooling theory which illustrates the effects of various physical processes...
Chabrier, Gilles, Méra, Dominique
We use recent low-mass star models, which reproduce accurately the observed sequences of various globular clusters, to convert the observed luminosity functions into bolometric luminosity functions...
Baraffe, Isabelle, Chabrier, Gilles, Allard, France, Hauschildt, Peter
We have performed evolutionary calculations of very-low-mass stars from 0.08 to 0.8 $\msol$ for different metallicites from [M/H]= -2.0 to -1.0 and we have tabulated the mechanical, thermal and...
Structure and evolution of low-mass stars (1997)
Chabrier, Gilles, Baraffe, Isabelle
We present extensive calculations of the structure and the evolution of low-massstars in the range 0.07-0.8 $\msol$, for metallicities $-2.0\le \mh \le 0.0$. These calculations are based on the most...
Gilles Chabrier, Dominique Méra
. We use recent low-mass star models, which reproduce accurately the observed sequences of various globular clusters, to convert the observed luminosity functions into bolometric luminosity...
Chabrier, Gilles, Segretain, Laurent, Méra, Dominique
We examine the recent results of the MACHO collaboration towards the Large Magellanic Cloud (Alcock et al. 1996) in terms of a halo brown dwarf or white dwarf population. The possibility for most of...
Synthetic Spectra and Mass Determination of the Brown Dwarf Gl229B (1996)
Allard, France, Hauschildt, Peter H., Baraffe, Isabelle, Chabrier, Gilles
We present preliminary non-grey model atmospheres and interiors for cool brown dwarfs. The resulting synthetic spectra are compared to available spectroscopic and photometric observations of the...
Thèse (Doctorat Nouveau régime) -- 1985.