J/MNRAS/405/839 Spectroscopic observations of globular clusters (Sharina+, 2010)
SAO RAS 6-m telescope spectroscopic observations of globular clusters in
nearby galaxies.
Sharina M.E., Chandar R., Puzia T.H., Goudfrooij P., Davoust E.
<Mon. Not. R. Astron. Soc., 405, 839-856 (2010)>
=2010MNRAS.405..839S 2010MNRAS.405..839S
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Photometry ; Spectroscopy
Keywords: galaxies: individual: DDO 71 - galaxies: individual: Holmberg IX -
galaxies: individual: IC 10 - galaxies: individual: M33 -
galaxies: individual: UGCA86 - galaxies: star clusters
Abstract:
We present the results of medium-resolution spectroscopy of 28
globular clusters (GCs) in six nearby galaxies of different
luminosities and morphological types, situated in M33 (15 objects),
M31 (three), IC10 (four), UGCA86 (four), Holmberg IX (one) and DDO71
(one) obtained at the Special Astrophysical Observatory 6-m telescope.
Measurements of Lick absorption line indices and comparison with
Simple Stellar Population models enabled us to obtain their
spectroscopic ages, metallicities and α-element to Fe abundance
ratios.
Description:
The spectroscopic data were obtained with the SCORPIO spectrograph
installed at the prime focus of the SAO 6-m telescope of the Russian
Academy of Sciences in two modes: with long-slit (LS) and multislit
(MS) units.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 87 67 Equatorial coordinates, magnitudes, colors, and
central V surface brightnesses of star clusters
in IC10 found on the HST images
tableb1.dat 77 36 Equatorial coordinates, magnitudes, colors, and
central V surface brightnesses of star clusters
and candidates in UGCA86
tablec.dat 251 27 Globular cluster indices (λ≤4531Å,
tablec1 and λ≥4531Å, tablec2)
tabled1.dat 53 40 Evolutionary parameters of Galactic globulars
from the sample of Schiavon (2005ApJS..160..163S 2005ApJS..160..163S)
estimated by us using TMB03 models
tabled23.dat 59 24 Evolutionary parameters of globulars in the Large
Magellanic Cloud calculated by us using the
Lick indices published by Beasley et al.
(2002MNRAS.336..168B 2002MNRAS.336..168B) for TMB03 and GD05 models
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Byte-by-byte Description of file: table[ab]1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- ID Star cluster identification (1)
6- 12 A7 --- n_ID Other name or note (2)
14- 15 I2 h RAh Right ascension (J2000.0)
17- 18 I2 min RAm Right ascension (J2000.0)
20- 24 F5.2 s RAs Right ascension (J2000.0)
26 A1 --- DE- Declination sign (J2000.0)
27- 28 I2 deg DEd Declination (J2000.0)
30- 31 I2 arcmin DEm Declination (J2000.0)
33- 36 F4.1 arcsec DEs Declination (J2000.0)
38- 42 F5.2 mag Vmag V magnitude (3)
43 A1 --- u_Vmag Uncertainty flag on Vmag
45- 48 F4.2 mag e_Vmag ? rms uncertainty on Vmag
49 A1 --- --- [(]
50- 54 F5.2 mag Vmag2 ? Second value of Vmag
55 A1 --- --- [)]
56- 59 F4.2 mag V-I V-I colour index (3)
60 A1 --- u_V-I rms uncertainty on V-I
62- 65 F4.2 mag e_V-I ? rms uncertainty on V-I
67- 71 F5.2 mag/arcsec2 muV Central V surface brightness (3)
72 A1 --- u_muV Uncertainty flag on muV
74- 77 F4.2 mag/arcsec2 e_muV ? rms uncertainty on muV
79- 82 F4.2 mag B-I ? B-I colour index
84- 87 F4.2 mag e_B-I ? rms uncertainty on B-I
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Note (1): HN-N names from Hunter (2001ApJ...559..225H 2001ApJ...559..225H, [H2001] N-N in Simbad)
Note (2):
* =TNN are considered to be common with the list of Tikhonov &
Galazutdinova (2009, Cat. J/PAZh/35/829, <[TG2009] NN> in Simbad)
* =GNN for objects common with the list of Georgiev et al. (2009, Cat.
J/MNRAS/396/1075, <[GPH2009] UGCA86-NN> in Simbad )
Note (3): Uncertain data due to inhomogeneous background in crowded stellar
fields are given without error bars and are marked by a colon
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Byte-by-byte Description of file: tablec.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Gal Galaxy name
8- 16 A9 --- ID Cluster name
18- 20 I3 --- S/N Signal-to-noise ratio
22- 26 F5.2 0.1nm HdA ?=- HδA index (1)
28- 32 F5.2 0.1nm HgA ?=- HγA index (1)
34- 38 F5.2 0.1nm HdF ?=- HδF index (1)
40- 44 F5.2 0.1nm HgF ?=- HγF index (1)
46- 51 F6.3 mag CN1 ?=- CN1 index (1)
53- 59 F7.4 mag CN2 ?=- CN2 index (1)
61- 65 F5.2 0.1nm Ca4227 ?=- Ca4227 index (1)
67- 71 F5.2 0.1nm G4300 ?=- G4300 index (1)
73- 77 F5.2 0.1nm Fe4383 ?=- Fe4383 index (1)
79- 82 F4.2 0.1nm Ca4455 ?=- Ca4455 index (1)
84- 87 F4.2 0.1nm e_HdA ?=- rms uncertainty on HdA (2)
89- 92 F4.2 0.1nm e_HgA ?=- rms uncertainty on HgA (2)
94- 97 F4.2 0.1nm e_HdF ?=- rms uncertainty on HdF (2)
99-102 F4.2 0.1nm e_HgF ?=- rms uncertainty on HgF (2)
104-109 F6.4 mag e_CN1 ?=- rms uncertainty on CN1 (2)
111-116 F6.4 mag e_CN2 ?=- rms uncertainty on CN2 (2)
118-121 F4.2 0.1nm e_Ca4227 ?=- rms uncertainty on Ca4227 (2)
123-126 F4.2 0.1nm e_G4300 ?=- rms uncertainty on G4300 (2)
128-131 F4.2 0.1nm e_Fe4383 ?=- rms uncertainty on Fe4383 (2)
133-136 F4.2 0.1nm e_Ca4455 ?=- rms uncertainty on Ca4455 (2)
138-142 F5.2 0.1nm Fe4531 ?=- Fe4531 index (1)
144-148 F5.2 0.1nm Fe4668 ?=- Fe4668 index (1)
150-154 F5.2 0.1nm Hb ?=- Hβ index (1)
156-160 F5.2 0.1nm Fe5015 ?=- Fe5015 index (1)
162-168 F7.4 mag Mg1 ?=- Mg1 index (1)
170-175 F6.4 mag Mg2 ?=- Mg2 index (1)
177-180 F4.2 0.1nm Mgb ?=- Mgb index (10
182-186 F5.2 0.1nm Fe5270 ?=- Fe5270 index (1)
188-192 F5.2 0.1nm Fe5335 ?=- Fe5335 index (1)
194-197 F4.2 0.1nm Fe5406 ?=- Fe5406 index (1)
199-202 F4.2 0.1nm e_Fe4531 ?=- rms uncertainty on Fe4531 (2)
204-207 F4.2 0.1nm e_Fe4668 ?=- rms uncertainty on Fe4668 (2)
209-212 F4.2 0.1nm e_Hb ?=- rms uncertainty on Hb (2)
214-217 F4.2 0.1nm e_Fe5015 ?=- rms uncertainty on Fe5015 (2)
219-224 F6.4 mag e_Mg1 ?=- rms uncertainty on Mg1 (2)
226-231 F6.4 mag e_Mg2 ?=- rms uncertainty on Mg2 (2)
233-236 F4.2 0.1nm e_Mgb ?=- rms uncertainty on Mgb (2)
238-241 F4.2 0.1nm e_Fe5270 ?=- rms uncertainty on Fe5270 (2)
243-246 F4.2 0.1nm e_Fe5335 ?=- rms uncertainty on Fe5335 (2)
248-251 F4.2 0.1nm e_Fe5406 ?=- rms uncertainty on Fe5406 (2)
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Note (1): Indices corrected for zeropoints of transformation to the
standard Lick system.
Note (2): Errors determined from bootstrapping of the object spectrum.
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Byte-by-byte Description of file: tabled1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Cluster Cluster name
10- 11 I2 Gyr Age Our age determination
12 A1 --- u_Age Uncertainty flag on Age (G1)
14 I1 Gyr e_Age ? rms uncertainty on Age
16- 19 F4.2 [Sun] [a/Fe] Our [α/Fe] abundance
20 A1 --- u_[a/Fe] Uncertainty flag on [a/Fe] (G1)
22- 25 F4.2 [Sun] e_[a/Fe] ? rms uncertainty on [a/Fe]
27- 31 F5.2 [Sun] [Z/H] Our [Z/H] abundance
32 A1 --- u_[Z/H] Uncertainty flag on [Z/H] (G1)
34- 37 F4.2 [Sun] e_[Z/H] ? rms uncertainty on [Z/H]
39- 42 F4.1 Gyr Agel ? Literature age (2)
44- 47 F4.2 [Sun] [a/Fe]l ? Literature [α/Fe] abundance (2)
49- 53 F5.2 [Sun] [Fe/H]l ? Literature [Fe/H] abundance (2)
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Note (2): Literature [α/Fe] values were taken from Pritzl et al.
(2005, Cat. J/AJ/130/2140) and Venn et al. (2004, Cat. J/AJ/128/1177),
the metallicities were extracted from the catalog of Harris (1996,
Cat. VII/195), and the reference ages were taken from Salaris & Weiss
(2002A&A...388..492S 2002A&A...388..492S).
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Byte-by-byte Description of file: tabled23.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Cluster Cluster name
10- 13 F4.1 Gyr Age TMB03 model Age
16- 19 F4.2 Gyr e_Age ? rms uncertainty on Age
21- 24 F4.2 [Sun] [a/Fe] TMB03 model [α/Fe] abundance (1)
25 A1 --- u_[a/Fe] Uncertainty flag on [a/Fe] (G1)
27- 30 F4.2 [Sun] e_[a/Fe] ? rms uncertainty on [a/Fe]
32- 36 F5.2 [Sun] [Z/H] TMB03 model [Z/H] abundance (1)
38- 41 F4.2 [Sun] e_[Z/H] ? rms uncertainty on [Z/H]
43- 45 F3.1 Gyr AgeG ? GD05 model Age (3)
47- 49 F3.1 Gyr e_AgeG ? rms uncertainty on AgeG
51- 54 F4.2 Sun ZG ? GD05 model Z abundance in ZG☉ unit (3)
56- 59 F4.2 Sun e_ZG ? rms uncertainty on ZG
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Note (1): TMB03 model, Thomas, Maraston and Bender, 2003MNRAS.339..897T 2003MNRAS.339..897T
Note (3): GD05 model, Gonzalez-Delgado et al., 2005MNRAS.357..945G 2005MNRAS.357..945G
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Global Notes:
Note (G1): A colon is used when Δ[Fe/H]>0.4dex, Δ(Age)>4Gyr,
and Δ[α/Fe]>0.35dex.
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 20-Mar-2012