J/A+A/569/A55 Abundances and vsini for 348 red giants (Adamow+, 2014)
The Penn State-Torun Centre for Astronomy Planet Search stars.
II. Lithium abundance analysis of the red giant clump sample.
Adamow M., Niedzielski A., Villaver E., Wolszczan A., Nowak G.
<Astron. Astrophys. 569, A55 (2014)>
=2014A&A...569A..55A 2014A&A...569A..55A
ADC_Keywords: Stars, giant ; Abundances ; Spectroscopy
Keywords: stars: fundamental parameters - stars: atmospheres -
stars: late-type - techniques: spectroscopic - planetary systems
Abstract:
We present Li and alpha-elements abundances, as well as rotational
velocities for 348 stars. Li has been detected in 92 stars, of which
82 are giants. Those data ware used to investigate various channels of
Li enrichment in giants.
Description:
This work is based on the Hobby-Eberly Telescope spectra obtained with
the High Resolution Spectrograph, which we use for determination of
abundances and rotational velocities. The Li abundance was determined
from the 7Li 670.8nm line, while a more extended set of lines was
used for alpha-elements abundances. Spectral analysis was done with
the Spectroscopy Made Easy Package (SME). Projected rotational
velocities are calculated with cross correlation method (CCF) and by
SME spectral modeling.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 117 348 Derived rotational velocities and abundances for
the 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: table5.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- TYC Tycho designation (NNNN-NNNNN-N)
14- 17 F4.1 km/s v(CCF) ?=-9.9 Projected rotational velocity v.sin(i)
from cross-correlation function (CCF)
19- 22 F4.1 km/s e_v(CCF) ?=-9.9 rms uncertainty on v(CCF)
24- 27 F4.1 km/s v(SME) Projected rotational velocity v.sin(i)
from SME (Spectroscopy Made Easy) package
(synthetic spectrum fitting; see
Valenti & Piskunov, 1996A&AS..118..595V 1996A&AS..118..595V)
29- 32 F4.1 km/s e_v(SME) rms uncertainty on v(SME)
34 A1 --- l_A(Li) Limit flag on A(Li)
36- 41 F6.2 [-] A(Li) ?=-99.99 LTE Lithium abundance (log(N/H)+12)
43- 48 F6.2 [-] A(Li)N ?=-99.99 NLTE Lithium abundance
50 A1 --- f_A(Li)N [a] NLTE computation flag (1)
52- 55 F4.2 [-] e_A(Li) ? rms uncertainty in A(Li)
57- 61 F5.2 [Sun] [O/H] Average O abundance
63- 66 F4.2 [Sun] e_[O/H] rms uncertainty in [O/H]
68- 72 F5.2 [Sun] [Mg/H] Average Mg abundance
74- 77 F4.2 [Sun] e_[Mg/H] rms uncertainty in [Mg/H]
79- 83 F5.2 [Sun] [Al/H] Average Al abundance
85- 88 F4.2 [Sun] e_[Al/H] rms uncertainty in [Al/H]
90- 94 F5.2 [Sun] [Ca/H] Average Ca abundance
96- 99 F4.2 [Sun] e_[Ca/H] rms uncertainty in [Ca/H]
101-105 F5.2 [Sun] [Ti/H] Average Ti abundance
107-110 F4.2 [Sun] e_[Ti/H] rms uncertainty in [Ti/H]
112 A1 --- Pop [dht] Population class (2)
114-117 A4 --- Note Additional information (3)
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Note (1): a = NLTE calculated with minimum A(Li )value of the curve
of growth, using grids by Lind et al. (2009A&A...503..541L 2009A&A...503..541L)
Note (2): Galactic population according to criteria defined by
Ibukiyama & Arimoto (2002A&A...394..927I 2002A&A...394..927I):
d = thin-disk
t = thick-disk
h = halo
Note (3): Additional information as follows:
b = stars with uncertain stellar parameters from Zielinski et al.
(2012A&A...547A..91Z 2012A&A...547A..91Z)
c = dwarfs identified by Zielinski et al. (2012A&A...547A..91Z 2012A&A...547A..91Z)
** = SB2 stars identified in CCF analysis
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Acknowledgements:
Monika Adamow, adamow(at)astri.umk.pl
References:
Zielinski et al., Paper I 2012A&A...547A..91Z 2012A&A...547A..91Z, Cat. J/A+A/547/A91
(End) Patricia Vannier [CDS] 18-Jul-2014