J/A+A/528/A121 Normalized spectra of 20 red giants (Bruntt,+, 2011)
Atmospheric parameters of red giants in the Kepler field.
Bruntt, H., Frandsen, S., Thygesen, A.O.
<Astron. Astrophys. 528, A121 (2011)>
=2011A&A...528A.121B 2011A&A...528A.121B
ADC_Keywords: Stars, giant ; Spectroscopy
Keywords: asteroseismology - stars: abundances - stars: fundamental parameters -
stars: Population II
Abstract:
Accurate fundamental parameters of stars are mandatory for the
asteroseismic investigation of the Kepler mission to succeed.
We determine the atmospheric parameters for a sample of six
well-studied bright K giants to confirm that our method produces
reliable results. We then apply the same method to 14 K giants that
are targets of the Kepler mission.
Description:
Normalized spectra of 20 red giants of which 6 are well studied bright
giants taken from Soubiran et al. (2010, Cat. B/pastel). All spectra
have been shifted to laboratory wavelength using the radial velocities
quoted in the paper. Two columns are associated with each target,
containing wavelength and flux.
The following bright giants have been observed: alpha Mon, mu Leo,
alpha Boo, lambda Peg, mu Peg, psi Uma. The following Kepler targets
were observed. Names taken from the Kepler Input Catalogue (Latham et
al., 2005AAS...20711013L 2005AAS...20711013L, Cat. V/133): 1726211, 2714397, 3744042,
3860139, 3936921, 4157282, 4177025, 5709564, 7006979, 8017159,
8476245, 10403036, 10426854, 11342694.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 72 20 List of studied K giants
sp/* 21 . Individual spectra
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
B/pastel : The PASTEL catalogue (Soubiran+, 2010)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 23 F6.3 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 36 F5.2 arcsec DEs Declination (J2000)
38- 41 I4 K Teff Effective temperature (from table1)
43- 45 I3 K e_Teff Mean error on Teff (from table1)
48- 51 F4.2 [cm/s2] log.g Gravity (from table1)
53- 56 F4.2 [cm/s2] e_log.g Mean error on log.g (from table1)
59- 63 F5.2 [Sun] [Fe/H] Metallicity (from table1)
65- 68 F4.2 [Sun] e_[Fe/H] Mean error [Fe/H] (from table1)
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Byte-by-byte Description of file: sp/*
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Bytes Format Units Label Explanations
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1- 9 F9.4 0.1nm lambda [4500/7260] Wavelength vector
11- 21 F11.8 --- nFlux Normalized flux
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Acknowledgements:
Anders Overaa Thygesen, aot06(at)phys.au.dk
History:
* 10-Jan-2011: Original file
* 07-Jul-2011:
- error fixed in star number K3744043 (was originally reported
as K3744042).
- spectra reported in individual files in the 'sp' subdirectory
(originally in a single file)
(End) A.O. Thygesen [IFA, Aarhus Univ. Denmark], P. Vannier [CDS] 10-Jan-2011