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astro-ph2005★ 12 cited
Calibrating models of ultralow-mass stars
Ansgar Reiners
Evolutionary and atmospheric models have become available for young ultralow-mass objects. These models are being used to determine fundamental parameters from observational proper…
astro-ph2005★ 126 cited
Rotation- and temperature-dependence of stellar latitudinal differential rotation
Ansgar Reiners
More than 600 high resolution spectra of stars with spectral type F and later were obtained in order to search for signatures of differential rotation in line profiles. In 147 star…
astro-ph2005★ 17 cited
Discovery of an M4 Spectroscopic Binary in Upper Scorpius: A Calibration Point for Young Low-Mass Evolutionary Models
Ansgar Reiners, Gibor Basri, Subhanjoy Mohanty
We report the discovery of a new low-mass spectroscopic (SB2) stellar binary system in the star-forming region of Upper Scorpius. This object, UScoCTIO5, was discovered by Ardila (…