| Issue |
A&A
Volume 587, March 2016
|
|
|---|---|---|
| Article Number | A119 | |
| Number of page(s) | 5 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361/201526628 | |
| Published online | 29 February 2016 | |
Research Note
Masses and luminosities for 342 stars from the PennState-Toruń Centre for Astronomy Planet Search⋆
Toruń Centre for Astronomy, Nicolaus Copernicus University in
Toruń,
Grudziadzka 5,
87-100
Toruń,
Poland
e-mail:
Michalina.Gorecka@astri.umk.pl
Received: 29 May 2015
Accepted: 5 October 2015
Aims. We present revised basic astrophysical stellar parameters: the masses, luminosities, ages, and radii for 342 stars from the PennState-Toruń Centre for Astronomy Planet Search. For 327 stars the atmospheric parameters were already available in the literature. For the other 15 objects we also present spectroscopic atmospheric parameters: the effective temperatures, surface gravities, and iron abundances.
Methods. Spectroscopic atmospheric parameters were obtained with a standard spectroscopic analysis procedure, using ARES and MOOG, or TGVIT codes. To refine the stellar masses, ages, and luminosities, we applied a Bayesian method.
Results. The revised stellar masses for 342 stars and their uncertainties are generally lower than previous estimates. Atmospheric parameters for 13 objects are determined here for the first time.
Key words: stars: low-mass / stars: late-type / stars: fundamental parameters / stars: statistics
Table 3 is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/587/A119
© ESO, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.