J/A+A/615/A31 PTPS stars IV. (Deka-Szymankiewicz+, 2018)
The Penn State - Torun Centre for Astronomy Planet Search stars,
IV. Dwarfs and the complete sample
Deka-Szymankiewicz B., Niedzielski A.T., Adamczyk M., Adamow M.,
Nowak G., Wolszczan A.
<Astron. Astrophys. 615, A31 (2018)>
=2018A&A...615A..31D 2018A&A...615A..31D (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; Effective temperatures ; Stars, masses
Keywords: stars: fundamental parameters - stars: atmospheres -
stars: late-type - techniques: spectroscopic - planetary systems
Abstract:
Our knowledge of the intrinsic parameters of exoplanets is as precise
as our determinations of their stellar hosts parameters. In the case
of radial velocity searches for planets, stellar masses appear to be
crucial. But before estimating stellar masses properly, detailed
spectroscopic analysis is essential. With this paper we conclude a
general spectroscopic description of the Pennsylvania-Torun Planet
Search (PTPS) sample of stars.
We aim at a detailed description of basic parameters of stars
representing the complete PTPS sample. We present atmospheric and
physical parameters for dwarf stars observed within the PTPS along
with updated physical parameters for the remaining stars from this
sample after the first Gaia data release.
We used high resolution (R=60000) and high signal-to-noise-ratio
(S/N=150-250) spectra from the Hobby-Eberly Telescope and its High
Resolution Spectrograph. Stellar atmospheric parameters were
determined through a strictly spectroscopic local thermodynamic
equilibrium analysis (LTE) of the equivalent widths of FeI and FeII
lines. Stellar masses, ages, and luminosities were estimated through a
Bayesian analysis of theoretical isochrones.
Description:
We present Teff, logg, [Fe/H], micrturbulence velocities, absolute
radial velocities, and rotational velocities for 156 stars from the
dwarf sample of PTPS. For most of these stars these are the first
determinations. We refine the definition of PTPS subsamples of stars
(giants, subgiants, and dwarfs) and update the luminosity classes for
all PTPS stars. Using available Gaia and Hipparcos parallaxes, we
redetermine the stellar parameters (masses, radii, luminosities, and
ages) for 451 PTPS stars. The complete PTPS sample of 885 stars is
composed of 132 dwarfs, 238 subgiants, and 515 giants. The PTPS
extends toward much less metal abundant and much more distant stars
than other planet search projects aimed at detecting planets around
evolved stars; 29% of our targets belong to the Galactic thick disc
and 2% belong to the halo.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 102 111 Stars rejested from the PTPS sample after CCF
analysis
table3.dat 292 885 Stellar parameters for 885 PTPS stars
table4.dat 292 29 Stellar parameters for 29 stars with
inconsistent parameters
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See also:
J/A+A/547/A91 : Spectroscopic analysis of 348 red giants (Zielinski+, 2012)
J/A+A/569/A55 : Abundances and vsini for 348 red giants (Adamow+, 2014)
J/A+A/587/A119 : Masses and luminosities for 342 stars (Adamczyk+, 2016)
J/A+A/585/A73 : PTPS stars. III. The evolved stars sample (Niedzielski+, 2016)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Tycho Tycho designation (NNNN-NNNNN-N)
14- 19 I6 --- HD ? HD identification
22- 29 A8 --- BD BD identification
32- 35 I4 K Teff Effective temperature (1)
38- 40 I3 K e_Teff rms uncertainty on Teff
43- 46 F4.2 [cm/s2] logg Stellar surface gravitational acceleration (10
49- 52 F4.2 [cm/s2] e_logg rms uncertainty on logg
54- 61 F8.3 km/s RV Absolute radial velocity
63- 67 F5.2 km/s e_RV rms uncertainty on RV
70- 78 F9.3 d MJD Epoch of radial velocity (MJD)
81-102 A22 --- Note Notes (2)
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Note (1): Effective temperatures and logg estimates from Adamow
(2010, Master's thesis, UMK, Torun, Poland).
Note (2): Notes as follows:
SB2 = binary star
VCCF = variable CCF
FCCF = flat CCF
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Byte-by-byte Description of file: table3.dat table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- Tycho Tycho designation (NNNN-NNNNN-N)
14- 19 I6 --- HD ? HD identification
20 A1 --- m_HD [AB] Multiplicity index on HD
22- 30 A9 --- BD BD identification
32- 42 A11 --- SpType Spectral type from SIMBAD
44- 48 F5.2 mag Vmag Brightness in V
50- 53 F4.2 mag B-V B-V colour index
55- 60 F6.2 mas plx Adopted parallax
62- 66 F5.2 mas e_plx rms uncertainty on plx
69- 73 F5.2 km/s vrot ? Rotational velocity
76- 80 F5.2 km/s e_vrot ? rms uncertainty on vrot
82- 85 F4.2 mag (B-V)0 Intrinsic B-V colour index
88- 92 F5.2 mag VMAG Absolute magnitude in V
95- 99 F5.2 mag BC Bolometric correction in V
101-103 A3 --- SpClass Obtained spectral class
105 A1 --- Method Type of method used (1)
107-110 I4 K Teff Effective temperature
112-114 I3 K e_Teff rms uncertainty on Teff
116-119 F4.2 [cm/s2] logg Stellar surface gravitational acceleration
121-124 F4.2 [cm/s2] e_logg rms uncertainty on logg
126-129 F4.2 km/s vt Microturbulence velocity
131-134 F4.2 km/s e_vt rms uncertainty on vt
136-140 F5.2 [-] [Fe/H] Stellar metallicity
142-145 F4.2 [-] e_[Fe/H] rms uncertainty on [Fe/H]
147-153 F7.2 km/s RV ? Absolute radial velocity
156-159 F4.2 km/s e_RV ? rms uncertainty on RV
161-169 F9.3 d MJD ? Epoch of radial velocity (MJD)
171-178 F8.2 pc Dist Distance (obtained from parallax)
180-186 F7.2 pc e_Dist rms uncertainty on Dist
189-194 F6.2 deg GLON Galactic longitude
197-202 F6.2 deg GLAT Galactic latitude
204-211 F8.2 pc z Distance from Galactic plane
213-220 F8.2 km/s Uvel Velocity towards Galactic Center
222-229 F8.2 km/s Vvel Velocity in the direction of the
rotation of the Galaxy
231-237 F7.2 km/s Wvel Velocity towards North Galactic Pole
240-244 A5 --- Popul Galactic Population
246-250 F5.2 [Lsun] logL logarithm of luminosity
252-255 F4.2 [Lsun] e_logL rms uncertainty in logL
257-260 F4.2 Msun M Stellar mass
262-266 F5.3 Msun e_M rms uncertainty in M
268-272 F5.2 [yr] logAge logarithm of stellar age
274-278 F5.3 [yr] e_logAge rms uncertainty in logAge
280-284 F5.2 Rsun R Stellar radius
286-290 F5.2 Rsun e_R rms uncertainty in R
292 I1 --- Note [1/3] Source of original data (2)
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Note (1): Stellar parameters determined by parallaxes from:
G = Gaia
H = Hipparcos
B = Bayesian method
Note (2): Origin of spectroscopic analysis of stellar parameters:
1 = Zielinski et al. (2012, Cat. J/A+A/547/A91)
2 = Niedzielski et al. (2016, Cat. J/A+A/585/A73)
3 = This work
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Acknowledgements:
Beata Deka-Szymankiewicz, bdeka(at)doktorant.umk.pl
References:
Zielinski et al., Paper I 2012A&A...547A..91Z 2012A&A...547A..91Z, Cat. J/A+A/547/A91
Adamow et al., Paper II 2014A&A...569A..55A 2014A&A...569A..55A, Cat. J/A+A/569/A55
Adamczyk et al., 2016A&A...587A.119A 2016A&A...587A.119A, Cat. J/A+A/587/A119
Niedzielski et al., Paper III 2016A&A...585A..73N 2016A&A...585A..73N, Cat. J/A+A/585/A73
History:
* 08-Jul-2018: on-line version
* 25-Apr-2019: some sign of BD names corrected
(End) B. Deka-Szymankiewicz [CA UMK Torun, Poland], P. Vannier [CDS] 10-Jan-2018