J/ApJS/152/251 Indo-US library of coude feed stellar spectra (Valdes+, 2004)
The Indo-US library of coude feed stellar spectra.
Valdes F., Gupta R., Rose J.A., Singh H.P., Bell D.J.
<Astrophys. J. Suppl. Ser., 152, 251-259 (2004)>
=2004ApJS..152..251V 2004ApJS..152..251V
ADC_Keywords: Stars, atmospheres ; Atlases ; Spectroscopy ;
Effective temperatures ; Radial velocities
Keywords: astronomical data bases: miscellaneous - atlases -
stars: atmospheres - stars: fundamental parameters
Abstract:
We have obtained spectra for 1273 stars using the 0.9m coude feed
telescope at Kitt Peak National Observatory. This telescope feeds the
coude spectrograph of the 2.1m telescope. The spectra have been
obtained with the No.5 camera of the coude spectrograph and a Loral
3Kx1K CCD. Two gratings have been used to provide spectral coverage
from 3460 to 9464Å, at a resolution of ∼1Å FWHM and at an
original dispersion of 0.44Å/pix. For 885 stars we have complete
spectra over the entire 3460 to 9464Å wavelength region (neglecting
small gaps of less than 50Å), and partial spectral coverage for the
remaining stars. The 1273 stars have been selected to provide broad
coverage of the atmospheric parameters Teff, logg, and [Fe/H], as
well as spectral type. The goal of the project is to provide a
comprehensive library of stellar spectra for use in the automated
classification of stellar and galaxy spectra and in galaxy population
synthesis. In this paper we discuss the characteristics of the
spectral library, viz., details of the observations, data reduction
procedures, and selection of stars. We also present a few
illustrations of the quality and information available in the spectra.
The first version of the complete spectral library is now publicly
available from the National Optical Astronomy Observatory (NOAO) via
ftp and http, at http://www.noao.edu/cflib .
Description:
All observations for the spectral library have been obtained with the
coude feed telescope at KPNO. Altogether 6917 individual spectra of
1273 stars have been obtained during the time period from 1995 June
through 2003 April.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 92 1273 Observational Parameters
table3.dat 136 1273 Physical Parameters
table4.dat 85 1273 Cross-references for Star Names
--------------------------------------------------------------------------------
See also:
http://www.noao.edu/cflib : Indo-US library of coude feed stellar spectra
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name Stellar identification
12- 13 I2 h RAh Hour of Right Ascension (J2000)
15- 16 I2 min RAm Minute of Right Ascension (J2000)
18- 22 F5.2 s RAs Second of Right Ascension (J2000)
24 A1 --- DE- Sign of the Declination (J2000)
25- 26 I2 deg DEd Degree of Declination (J2000)
28- 29 I2 arcmin DEm Arcminute of Declination (J2000)
31- 34 F4.1 arcsec DEs Arcsecond of Declination (J2000)
36- 40 F5.2 mag Vmag ? The V band magnitude
42- 46 F5.2 mag B-V ? The (B-V) color
48- 49 I2 --- o_Name Number of stellar spectra obtained
51- 63 A13 0.1nm Cover Spectral coverage in Angstroms
65- 91 A27 0.1nm Gaps Gaps in spectral coverage in Angstroms
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name Stellar identification
12- 21 A10 --- SpType MK Spectral type
23- 27 A5 --- SpCont Continuum spectral type from Pickles library
(1998, Cat. J/PASP/110/863) (1)
29- 34 F6.1 km/s HRV ? Heliocentric radial velocity
36- 41 I6 K Teff ? Effective temperature
43- 47 F5.2 [cm/s2] log(g) ? Log of the surface gravity
49- 54 F6.2 [Sun] [Fe/H] ? Metallicity
56-136 A81 --- Ref The Teff, log(g), & [Fe/H] reference
--------------------------------------------------------------------------------
Note (1): Used for defining the continuum shape. The Pickles class
in table 3 was assigned based on the literature spectral type but is
not always an exact match since the Pickles library does not contain
data for all our types. When no appropriate type was available a flat
continuum was applied as identified by the word "flat".
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name Stellar identification
12- 17 I6 --- HD ? The HD identification (Cat. III/135)
18 A1 --- m_HD Multiplicity index on HD
20- 30 A11 --- BD The BD identification
32- 34 A3 --- --- [SAO]
36- 41 I6 --- SAO ? The SAO identification (Cat. I/131)
43- 44 A2 --- --- [HR]
46- 49 I4 --- HR ? The HR identification (Cat. V/50)
51- 53 A3 --- --- [HIP]
55- 60 I6 --- HIP ? The HIP identification (Cat. I/239)
62- 82 A21 --- OName Alternative name
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 02-Jul-2004