J/ApJS/160/176 alpha-enhanced integrated Lick/IDS spectral indices (Lee+, 2005)
α-enhanced integrated Lick/IDS spectral indices and Milky Way and M31
globular clusters and early-type galaxies.
Lee H.-C., Worthey G.
<Astrophys. J. Suppl. Ser., 160, 176-198 (2005)>
=2005ApJS..160..176L 2005ApJS..160..176L
ADC_Keywords: Clusters, globular ; Spectroscopy
Keywords: galaxies: evolution - galaxies: star clusters -
stars: horizontal-branch
Abstract:
All 25 Lick/IDS spectral indices have been computed for the integrated
light of simple stellar populations over broad ranges of age and
metallicity and with effects from horizontal-branch stars fully
implemented. Our models employ α-enhanced isochrones at the
sub-solar metallicity regime, but solar-scaled ones at solar and
super-solar metallicity. We have also employed the updated response
functions of Houdashelt et al. (2002AAS...201.1405H 2002AAS...201.1405H) at the solar and
super-solar metallicity regime, so that we could assess the
light-element enhancement phenomena seen from metal-rich early-type
galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 63 355 *Balmer indices for Lick/IDS galaxies
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Note on table1.dat: 15 galaxies had no data and were deleted from the table
(NGC 473, NGC 855, NGC 2146, NGC 2273, NGC 3034, NGC 3077, NGC 3732,
NGC 3941, NGC 4104A, NGC 4594, NGC 4670, NGC 6835, NGC 7625, NGC 7679,
UGC 3696).
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See also:
J/ApJS/111/377 : Hγ + Hδ absorption features (Worthey+ 1997)
J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994)
J/ApJS/116/1 : Old Stellar Populations. VI. Absorption-Line (Trager+ 1998)
J/AJ/130/55 : Modelled Lick indices for galaxies (Mendes+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Object name
12- 17 F6.3 0.1nm HdeltaA ? Lick IDS HδA spectral feature
index (1)
19- 23 F5.3 0.1nm e_HdeltaA ? The 1σ error in Hdelta(A) (1)
25- 31 F7.3 0.1nm HgammaA ? Lick IDS HγA spectral feature
index (1)
33- 37 F5.3 0.1nm e_HgammaA ? The 1σ error in Hgamma(A) (1)
39- 44 F6.3 0.1nm HdeltaF ? Lick IDS HδF spectral feature
index (1)
46- 50 F5.3 0.1nm e_HdeltaF ? The 1σ error in Hdelta(F) (1)
52- 57 F6.3 0.1nm HgammaF ? Lick IDS HγF spectral feature
index (1)
59- 63 F5.3 0.1nm e_HgammaF ? The 1σ error in Hgamma(F) (1)
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Note (1): In units of Angstroms.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 29-May-2006