J/A+A/587/A119 Masses and luminosities for 342 stars (Adamczyk+, 2016)
Masses and luminosities for 342 stars from the PennState-Torun Centre for
Astronomy Planet Search.
Adamczyk M., Deka-Szymankiewicz B., Niedzielski A.
<Astron. Astrophys. 587, A119 (2016)>
=2016A&A...587A.119A 2016A&A...587A.119A (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; Stars, masses
Keywords: stars: low-mass - stars: late-type - stars: fundamental parameters -
stars: statistics
Abstract:
We present revised basic astrophysical stellar parameters: the masses,
luminosities, ages, and radii for 342 stars from the PennState-Torun
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.
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.
Description:
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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 100 353 Recalculated astrophysics stellar parameters for
the red clump PTPS sample stars
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See also:
J/A+A/547/A91 : Spectroscopic analysis of 348 red giants (Zielinski+, 2012)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- TYC Tycho designation (NNNN-NNNNN-N)
14- 24 A11 --- HD HD designation if available (HD NNNNNN)
26- 37 A12 --- BD BD designation if available (BD+NN NN)
39- 42 F4.2 Msun M Stellar mass
45- 48 F4.2 Msun e_M rms uncertainty in M
51- 55 F5.2 [yr] logAge logarithm of stellar age
58- 61 F4.2 [yr] e_logAge rms uncertainty in logAge
64- 67 F4.2 [Lsun] logL logarithm of luminosity
70- 73 F4.2 [Lsun] e_logL rms uncertainty in logL
76- 80 F5.2 [Lsun] logLp ?=-9.99 logarithm of luminosity computed
from parallax
83- 86 F4.2 [Lsun] e_logLp ?=9.99 rms uncertainty in logLp
89- 93 F5.2 Rsun R Stellar radius
96-100 F5.2 Rsun e_R rms uncertainty in R
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Acknowledgements:
Beata Deka-Szymankiewicz, bdeka(at)doktorant.umk.pl
Andrzej Niedzielski, Andrzej.Niedzielski(at)umk.pl
(End) Patricia Vannier [CDS] 29-Jan-2016