P. Hauschildt

Publications509
h-index61
Citations17,024
Highly Influential Citations1,962
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Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458
We present evolutionary models for cool brown dwarfs and extra-solar giant planets. The models re- produce the main trends of observed methane dwarfs in near-IR color-magnitude diagrams. We also…
Evolutionary Models for Very Low-Mass Stars and Brown Dwarfs with Dusty Atmospheres
We present evolutionary calculations for very low-mass stars and brown dwarfs based on synthetic spectra and nongray atmosphere models which include dust formation and opacity, i.e., objects with…
A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar…
LOW-TEMPERATURE OPACITIES
Previous computations of low-temperature Rosseland and Planck mean opacities from Alexander & Ferguson areupdatedandexpanded.Thenewcomputationsincludeamorecompleteequationofstate(EOS)withmoregrain…
The NEXTGEN Model Atmosphere Grid. II. Spherically Symmetric Model Atmospheres for Giant Stars with Effective Temperatures between 3000 and 6800 K
We present the extension of our NextGen model atmosphere grid to the regime of giant stars. The input physics of the models presented here is nearly identical to that of the NextGen dwarf atmosphere…
Infrared Spectra and Spectral Energy Distributions of Late M and L Dwarfs
We have obtained 1.0-2.5 ?m spectra at R ~ 600 of 14 disk dwarfs with spectral types M6-L7. For four of the dwarfs, we have also obtained infrared spectra at R ~ 3000 in several narrow intervals. In…
Infrared Spectra of Low-Mass Stars: Toward a Temperature Scale for Red Dwarfs
We present new low-resolution (R ~ 250) 1.0-2.4 pm spectra for 13 red dwarf stars. The sample size is increased to 16 by including other published infrared spectra. New, as well as published, red…
Evolutionary models for solar metallicity low - mass stars: Mass - magnitude relationships and color - magnitude diagrams
We present evolutionary models for low mass stars from 0.075 to 1 M for solar-type metallicities (M/H)= 0 and -0.5. The calculations include the most recent interior physics and the latest generation…
The M Dwarf GJ 436 and its Neptune-Mass Planet
We determine stellar parameters for the M dwarf GJ 436, which hosts a Neptune-mass planet. We employ primarily spectral modeling at low and high resolution, examining the agreement between model and…
Numerical solution of the expanding stellar atmosphere problem
Abstract In this paper we discuss numerical methods and algorithms for the solution of NLTE stellar atmosphere problems involving expanding atmospheres, e.g., found in novae, supernovae and stellar…
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