J/ApJS/151/387 Near-IR spectral library of late-type stars (Ivanov+, 2004)
A medium-resolution near-infrared spectral library of late-type stars. I.
Ivanov V.D., Rieke M.J., Engelbracht C.W., Alonso-herrero A., Rieke G.H.,
Luhman K.L.
<Astrophys. J. Suppl. Ser., 151, 387-397 (2004)>
=2004ApJS..151..387I 2004ApJS..151..387I
ADC_Keywords: Stars, late-type ; Infrared sources ; Spectroscopy
Keywords: atlases - infrared: stars - stars: abundances -
stars: chromospheres - stars: fundamental parameters -
stars: late-type
Abstract:
We present an empirical infrared spectral library of medium-resolution
(R∼2000-3000) H (1.6µm) and K (2.2µm) band spectra of 218 red stars,
spanning a range of [Fe/H] from ~-2.2 to ~+0.3. The sample includes
Galactic disk stars, bulge stars from Baade's window, and red giants
from Galactic globular clusters. We report the values of 19 indices
covering 12 spectral features measured from the spectra in the
library. Finally, we derive calibrations to estimate the effective
temperature, and diagnostic relationships to determine the luminosity
classes of individual stars from near-infrared spectra.
This paper is part of a larger effort aimed at building a near-IR
spectral library to be incorporated in population synthesis models, as
well as at testing synthetic stellar spectra.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
position.dat 51 218 Positions, from Simbad
table2.dat 63 445 Log of spectroscopic observations
table3.dat 115 218 Adopted photospheric parameters of the stars
refs.dat 144 67 References
table4.dat 64 19 Definitions of spectral bands
table5.dat 140 218 Spectral indices of features of interest
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Byte-by-byte Description of file: position.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 29 A25 --- SName Simbad name
30 A1 --- n_SName [*] *: objects not identified in Simbad
32- 33 I2 h RAh ? Right ascension (J2000)
35- 36 I2 min RAm ? Right ascension (J2000)
38- 41 F4.1 s RAs ? Right ascension (J2000)
43 A1 --- DE- Declination sign (J2000)
44- 45 I2 deg DEd ? Declination (J2000)
47- 48 I2 arcmin DEm ? Declination (J2000)
50- 51 I2 arcsec DEs ? Declination (J2000)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "YYYY/MM/DD" Date Date of the observation (1)
12- 13 A2 --- Site Observation Site (2)
15- 23 A9 --- Name Star name (3)
25- 31 A7 --- Std Standard star name for atmospheric correction
33- 38 A6 --- SpType Standard star spectral type
40- 42 I3 mm-1 Gr Grating (4)
44- 62 A19 --- Range Spectral range covered (5)
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Note (1): In YYYY/MM/DD format, e.g. 1999/02/03 is the night of Feb 3-4, 1999.
Note (2): Observation Sites are named as follows:
61 = Steward Observatory 1.55-m
90 = Steward Observatory 2.3-m
MM = original MMT telescopes
Note (3): Abreviations: S = SAO; H = HD; N = NGC; B = BD.
Note (4): 600 lines/mm corresponds to spectral resolution R∼3000, and
300 lines/mm corresponds to R∼1500.
Note (5): H and K indicate that the entire atmospheric window was observed.
Numbers give the central wavelength of the observed grating settings
in microns. Two numbers separated by a dash means that all grating
settings in between them were observed. A number in brackets after H
and/or K with a minus indicates a missing setting.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 15 A11 --- Class Star class
17- 20 I4 --- HR ? The HR (Cat. V/50) number
22- 27 I6 --- HD ? The HD (Cat. III/135) number
28 A1 --- m_HD [AB] Multiplicity index on HD
30- 35 I6 --- SAO ? The SAO (Cat. I/131) number
37- 44 A8 --- BD The BD (Cat. I/122) number
46- 60 A15 --- Name Other name (1)
62- 73 A12 --- SpType MK spectral type
75- 76 A2 --- r_SpType Reference on SpType
78- 82 I5 K Teff ?=-1 Effective temperature
84- 85 A2 --- r_Teff Reference on Teff
87- 91 F5.2 [cm/s2] log(g) ?=99.99 Log of the surface gravity
93- 94 A2 --- r_log(g) Reference on log(g)
96-100 F5.2 [Sun] [Fe/H] ?=99.99 Log of the Fe to H abundance
102-103 A2 --- r_[Fe/H] Reference on [Fe/H]
105 A1 --- Method [sbn-] Abundance estimate method (2)
107-110 F4.2 mag (V-K)0 ? Dereddened (V-K) colour index
112-115 F4.2 mag e_(V-K)0 ? rms uncertainty on (V-K)0
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Note (1): Abbreviations used:
B = Blanco (1986AJ.....91..290B 1986AJ.....91..290B)
BMB = Blanco et al. (1984AJ.....89..636B 1984AJ.....89..636B)
TLE = Lloyd Evand (1976MNRAS.174..169L 1976MNRAS.174..169L)
For more details see Worthey et al. (1994ApJS...95..107W 1994ApJS...95..107W).
Note (2): Abundance estimate method as follows:
s = spectroscopy
b = broad band photometry
n = narrow band photometry
- = none, the value is unknown or assumed
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference code
4- 22 A19 --- BibCode BibCode
24- 49 A26 --- Aut Author's name
51-150 A100 --- Com Comments
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- No Index number
4- 28 A25 --- Ion Species
29- 35 F7.1 0.1nm Lambdac Line central wavelength
37- 39 I3 0.1nm DLambdac Line bandwidth
41- 47 F7.1 0.1nm LambdaC1c ? Continuum 1 central wavelength
49- 51 I3 0.1nm DLambdaC1c ? Continuum 1 bandwidth
53- 59 F7.1 0.1nm LambdaC2c ? Continuum 2 central wavelength
61- 62 I2 0.1nm DLambdaC2c ? Continuum 2 bandwidth
64 I1 --- Ref Reference (1)
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Note (1): References are numbered as follows:
1 = This work
2 = Kleinmann & Hall, 1986ApJS...62..501K 1986ApJS...62..501K
3 = Origlia et al., 1993A&A...280..536O 1993A&A...280..536O
4 = Ali et al., 1995AJ....110.2415A 1995AJ....110.2415A
5 = Doyon et al., 1994ApJ...421..101D 1994ApJ...421..101D
6 = Ivanov et al., 2000ApJ...545..190I 2000ApJ...545..190I
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 15 A11 --- Class Luminosity class
17- 27 A11 --- Star Star identification (1)
29- 33 F5.2 mag MgI ? Mg I (1.50um) spectral index (2)
35- 39 F5.2 mag FeI ? Fe I (1.58um) spectral index (2)
41- 45 F5.2 mag SiI ? Si I (1.59um) spectral index (2)
47- 51 F5.2 mag COa ? CO (1.62um) spectral index (2)
53- 57 F5.2 mag MgIa ? Mg I (1.71um) spectral index (2)
59- 63 F5.2 mag MgIb ? Mg I (2.11um) spectral index (2)
65- 69 F5.2 mag BrG ? Brγ (2.16um) spectral index (2)
71- 75 F5.2 mag NaIa ? Na I (2.2075um) spectral index (2)
77- 81 F5.2 mag NaIb ? Na I (2.2077um) spectral index (2)
83- 87 F5.2 mag CaIa ? Ca I (2.2635um) spectral index (2)
89- 93 F5.2 mag CaIb ? Ca I (2.26365um) spectral index (2)
95- 99 F5.2 mag MgIc ? Mg I (2.2806um) spectral index (2)
101-105 F5.2 mag MgId ? Mg I (2.2820um) spectral index (2)
107-111 F5.2 mag COb ? CO (2.29505 um) spectral index (2)
113-117 F5.2 mag 12COa ? 12CO(2,0) (2.29um) spectral index (2)
119-123 F5.2 mag COc ? CO (2.2980um) spectral index (2)
125-129 F5.2 mag 12COb ? 12CO(3,1) (2.32um) spectral index (2)
131-135 F5.2 mag 13CO ? 13CO(2,0) (2.35um) spectral index (2)
137-140 F4.2 mag COd ? CO (2.35um) spectral index (2)
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Note (1): Stars are sorted in order of luminosity and spectral class,
same as in Table 3.
Note (2): Indices are given in magnitudes. The columns follow the same
order as the index definitions given in Table 4.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 07-May-2004