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7 papers · 2 filters
Bayesian analysis of ages, masses, and distances to cool stars with non-LTE spectroscopic parameters
Aldo Serenelli, Maria Bergemann, Gregory Ruchti +1
For studies of Galactic evolution, the accurate characterization of stars in terms of their evolutionary stage and population membership is of fundamental importance. A standard ap…
MOA-2010-BLG-523: "Failed Planet" = RS CVn Star
A. Gould, J. C. Yee, I. A. Bond +116
The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing lightcurve near the peak of an Amax ~ 265 high-magnification microlensing e…
Projected Rotational Velocities and Stellar Characterization of 350 B Stars in the Nearby Galactic Disk
G. A. Bragança, S. Daflon, K. Cunha +3
Projected rotational velocities (vsini) are presented for a sample of 350 early B-type main sequence stars in the nearby Galactic disk. The stars are located within ~1.5 kpc from t…
The very low mass multiple system LHS\,1070 -- a testbed for model atmospheres for the lower end of the main sequence
A. S. Rajpurohit, C. Reyle, M. Schultheis +8
LHS1070 is a nearby multiple system of low mass stars. It is an important source of information for probing the low mass end of the main sequence, down to the hydrogen-burning limi…
Silver and palladium help unveil the nature of a second r-process
Camilla Juul Hansen, Francesca Primas, Henrik Hartman +7
The rapid neutron-capture process, creating about half of the heaviest elements in the Solar System was believed to be unique. Many recent studies have shown that this does not inc…
CRIRES-POP: A library of high resolution spectra in the near-infrared
T. Lebzelter, A. Seifahrt, S. Uttenthaler +10
New instrumental capabilities and the wealth of astrophysical information extractable from the near-infrared wavelength region have led to a growing interest in the field of high r…