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The nearby magnetic cool DZ white dwarf PM J08186-3110
Adela Kawka, Stéphane Vennes, Nicole F. Allard +2
We present an analysis of photometric, spectroscopic and spectropolarimetric data of the nearby, cool, magnetic DZ white dwarf PM J08186-3110. High dispersion spectra show the pres…
A new set of atmosphere and evolution models for cool T-Y brown dwarfs and giant exoplanets
Mark W. Phillips, Pascal Tremblin, Isabelle Baraffe +6
We present a new set of solar metallicity atmosphere and evolutionary models for very cool brown dwarfs and self-luminous giant exoplanets, which we term ATMO 2020. Atmosphere mode…
H--He collision-induced satellite in the Lyman- profile of DBA white dwarf stars
Nicole F. Allard, John F. Kielkopf, Siyi Xu +6
The spectra of helium-dominated white dwarf stars with hydrogen in their atmosphere present a distinctive broad feature centered around 1160~Å\/ in the blue wing of the Lyman- l…