J/MNRAS/370/1181 Library of Lick/IDS indices for binaries (Zhang+, 2006)
A library of Lick Observatory Image Dissector Scanner indices for binary
stellar populations.
Zhang F., Li L.
<Mon. Not. R. Astron. Soc., 370, 1181-1184 (2006)>
=2006MNRAS.370.1181Z 2006MNRAS.370.1181Z
ADC_Keywords: Models, evolutionary ; Stars, double and multiple ;
Abundances, peculiar
Keywords: binaries: general - stars: evolution - galaxies: clusters: general
Abstract:
Using evolutionary population synthesis, we present 13 refined
absorption-line indices defined by the Lick Observatory Image
Dissector Scanner (Lick/IDS) system for an extensive set of
instantaneous-burst binary stellar populations (BSPs) at high
resolution (∼0.3Å), and 38 indices at intermediate resolution
(3Å). The ages of the populations are at an interval of 1Gyr in
the range 115 Gyr, and the metallicities are in the range 0.004-0.03.
These indices are obtained by two methods: (i) using the empirical
fitting functions (FFs method); (ii) measured directly from the
synthetic spectra (DC method). Together with our previous paper, a
data base of Lick/IDS spectral absorption-line indices for BSPs at
high and intermediate resolutions is provided. This set of indices
includes 21 indices of Worthey et al. (1994, Cat. J/ApJS/94/687),
four Balmer indices defined by Worthey & Ottaviani (1997, Cat.
J/ApJS/111/377), and 13 indices with the new passband definitions
of Trager et al. (1998, Cat. J/ApJS/116/1, hereafter T98.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 91 60 At high resolution (∼0.3Å), T98 indices of BSPs
obtained with the fitting functions (FFs) method
tablea2.dat 91 60 At high resolution (∼0.3Å), T98 indices of BSPs
obtained with a direct measurement (DC) method
tablea3.dat 104 152 At high resolution (∼0.3Å), the integrated
pseudo-continuum of BSPs
tableb1.dat 120 152 At intermediate resolution (3Å), Lick/IDS
indices of BSPs obtained by the fitting functions
(FFs) method
tableb2.dat 120 152 At intermediate resolution (3Å), Lick/IDS
indices of BSPs obtained a direct measurement
(DC) method
tableb3.dat 104 152 At intermediate resolution (3Å), the
integrated pseudo-continuum of BSPs
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See also:
J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994)
J/ApJS/111/377 : Hγ + Hδ absorption features (Worthey+ 1997)
J/ApJS/116/1 : Old Stellar Populations. VI. Absorption-Line (Trager+ 1998)
Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
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1- 5 F5.3 --- Z Metal (Z) abundance
7- 8 I2 Gyr Age Age
10- 15 F6.3 mag CNT1 CNT1 metallicity index
17- 22 F6.3 mag CNT2 CNT2 metallicity index
24- 28 F5.3 0.1nm Ca4227T Ca4227T metallicity index
30- 35 F6.3 0.1nm G4300T G4300T metallicity index
37- 42 F6.3 0.1nm Fe4383T Fe4383T metallicity index
44- 48 F5.3 0.1nm Ca4455T Ca4455T metallicity index
50- 54 F5.3 0.1nm Fe4531T Fe4531T metallicity index
56- 61 F6.3 0.1nm C24668T C24668T metallicity index
63- 67 F5.3 0.1nm Fe5709T Fe5709T metallicity index
69- 73 F5.3 0.1nm Fe5782T Fe5782T metallicity index
75- 79 F5.3 0.1nm NaDT Na DT metallicity index
81- 85 F5.3 mag TiOT1 TiOT1 metallicity index
87- 91 F5.3 mag TiOT2 TiOT2 metallicity index
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Byte-by-byte Description of file: table[ab]3.dat
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Bytes Format Units Label Explanations
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1- 5 F5.3 --- Z Metal (Z) abundance
7- 13 A7 --- Index Name of the metallicity index
15- 20 F6.3 10+28W/nm 1Gyr Integrated pseudo-continuum at 1Gyr (1)
22- 26 F5.3 10+28W/nm 2Gyr Integrated pseudo-continuum at 2Gyr (1)
28- 32 F5.3 10+28W/nm 3Gyr Integrated pseudo-continuum at 3Gyr (1)
34- 38 F5.3 10+28W/nm 4Gyr Integrated pseudo-continuum at 4Gyr (1)
40- 44 F5.3 10+28W/nm 5Gyr Integrated pseudo-continuum at 5Gyr (1)
46- 50 F5.3 10+28W/nm 6Gyr Integrated pseudo-continuum at 6Gyr (1)
52- 56 F5.3 10+28W/nm 7Gyr Integrated pseudo-continuum at 7Gyr (1)
58- 62 F5.3 10+28W/nm 8Gyr Integrated pseudo-continuum at 8Gyr (1)
64- 68 F5.3 10+28W/nm 9Gyr Integrated pseudo-continuum at 9Gyr (1)
70- 74 F5.3 10+28W/nm 10Gyr Integrated pseudo-continuum at 10Gyr (1)
76- 80 F5.3 10+28W/nm 11Gyr Integrated pseudo-continuum at 11Gyr (1)
82- 86 F5.3 10+28W/nm 12Gyr Integrated pseudo-continuum at 12Gyr (1)
88- 92 F5.3 10+28W/nm 13Gyr Integrated pseudo-continuum at 13Gyr (1)
94- 98 F5.3 10+28W/nm 14Gyr Integrated pseudo-continuum at 14Gyr (1)
100-104 F5.3 10+28W/nm 15Gyr Integrated pseudo-continuum at 15Gyr (1)
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Note (1): In units of 1034erg/s/Å.
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Byte-by-byte Description of file: tableb[12].dat
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Bytes Format Units Label Explanations
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1- 5 F5.3 --- Z Metal (Z) abundance
7- 13 A7 --- Index Name of the metallicity index
15- 20 F6.3 --- 1Gyr Lick/IDS indices at 1Gyr
22- 27 F6.3 --- 2Gyr Lick/IDS indices at 2Gyr
29- 34 F6.3 --- 3Gyr Lick/IDS indices at 3Gyr
36- 41 F6.3 --- 4Gyr Lick/IDS indices at 4Gyr
43- 48 F6.3 --- 5Gyr Lick/IDS indices at 5Gyr
50- 55 F6.3 --- 6Gyr Lick/IDS indices at 6Gyr
57- 62 F6.3 --- 7Gyr Lick/IDS indices at 7Gyr
64- 69 F6.3 --- 8Gyr Lick/IDS indices at 8Gyr
71- 76 F6.3 --- 9Gyr Lick/IDS indices at 9Gyr
78- 83 F6.3 --- 10Gyr Lick/IDS indices at 10Gyr
85- 90 F6.3 --- 11Gyr Lick/IDS indices at 11Gyr
92- 97 F6.3 --- 12Gyr Lick/IDS indices at 12Gyr
99-105 F7.3 --- 13Gyr Lick/IDS indices at 13Gyr
107-113 F7.3 --- 14Gyr Lick/IDS indices at 14Gyr
115-120 F6.3 --- 15Gyr Lick/IDS indices at 15Gyr
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Apr-2007