J/A+A/415/123 Lick line-index and photometry of globular clusters (Puzia+, 2004)
VLT spectroscopy of globular cluster systems.
I. The Photometric and Spectroscopic Data Set.
Puzia T.H., Kissler-Patig M., Thomas D., Maraston C., Saglia R.P.,
Bender R., Richtler T., Goudfrooij P., Hempel M.
<Astron. Astrophys. 415, 123 (2004)>
=2004A&A...415..123P 2004A&A...415..123P
ADC_Keywords: Clusters, globular ; Photometry ; Radial velocities
Keywords: galaxies: star clusters - galaxies: general
Description:
The catalog contains Lick line-index and photometric measurements of
extragalactic globular clusters in seven early-type galaxies (NGC
1380, 2434, 3115, 3379, 3585, 5846, and 7192) with different
morphological types (E/S0) located in field and group/cluster
environments.
High-quality spectra were taken with the FORS2 instrument at ESO's
Very Large Telescope. ∼50% of our data allows an age resolution
Δt/t∼0.3 and a metallicity resolution ∼0.25-0.4dex, depending on
the absolute metallicity. Globular cluster candidates are selected
from deep B, V, R, I, K FORS2/ISAAC photometry with 80-100% success
rate inside one effective radius. Using combined optical/near-infrared
colour-colour diagrams we present a method to efficiently reduce
fore-/background contamination down to ≲10%.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
index.dat 237 143 Lick index measurements (table B)
booterr.dat 237 143 Bootstraped statistical index errors (table B)
syserr.dat 237 143 Systematic index errors due to radial velocity
(table B)
phot.dat 106 143 Photometric measurements (table C)
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Byte-by-byte Description of file: index.dat
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Bytes Format Units Label Explanations
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2- 11 A10 --- GC Globular cluster designation (G1)
13- 20 F8.4 mag CN1 ? CN1 index
22- 29 F8.4 mag CN2 ? CN2 index
31- 38 F8.4 0.1nm Ca4227 ? Ca4227 index
40- 47 F8.4 0.1nm G4300 G4300 index
49- 56 F8.4 0.1nm Fe4383 ? Fe4383 index
58- 65 F8.4 0.1nm Ca4455 ? Ca4455 index
67- 74 F8.4 0.1nm Fe4531 ? Fe4531 index
76- 83 F8.4 0.1nm Fe4668 ? Fe4668 index
85- 92 F8.4 0.1nm Hbeta ? Hbeta index
94-101 F8.4 0.1nm Fe5015 ? Fe5015 index
103-110 F8.4 mag Mg1 ? Mg1 index
112-119 F8.4 mag Mg2 ? Mg2 index
121-128 F8.4 0.1nm Mgb ? Mgb index
130-137 F8.4 0.1nm Fe5270 ? Fe5270 index
139-146 F8.4 0.1nm Fe5335 ? Fe5335 index
148-155 F8.4 0.1nm Fe5406 ? Fe5406 index
157-164 F8.4 0.1nm Fe5709 ? Fe5709 index
166-173 F8.4 0.1nm Fe5782 ? Fe5782 index
175-182 F8.4 0.1nm NaD ? NaD index
184-191 F8.4 mag TiO1 ? TiO1 index
193-200 F8.4 mag TiO2 ? TiO2 index
202-209 F8.4 0.1nm HdeltaA ? HdeltaA index
211-218 F8.4 0.1nm HgammaA ? HgammaA index
220-227 F8.4 0.1nm HdeltaF ? HdeltaF index
229-236 F8.4 0.1nm HgammaF ? HgammaF index
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Byte-by-byte Description of file: booterr.dat syserr.dat
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Bytes Format Units Label Explanations
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2- 11 A10 --- GC Globular cluster designation (G1)
13- 20 F8.4 mag e_CN1 ? Error on CN1 index
22- 29 F8.4 mag e_CN2 ? Error on CN2 index
31- 38 F8.4 0.1nm e_Ca4227 ? Error on Ca4227 index
40- 47 F8.4 0.1nm e_G4300 Error on G4300 index
49- 56 F8.4 0.1nm e_Fe4383 ? Error on Fe4383 index
58- 65 F8.4 0.1nm e_Ca4455 ? Error on Ca4455 index
67- 74 F8.4 0.1nm e_Fe4531 ? Error on Fe4531 index
76- 83 F8.4 0.1nm e_Fe4668 ? Error on Fe4668 index
85- 92 F8.4 0.1nm e_Hbeta ? Error on Hbeta index
94-101 F8.4 0.1nm e_Fe5015 ? Error on Fe5015 index
103-110 F8.4 mag e_Mg1 ? Error on Mg1 index index
112-119 F8.4 mag e_Mg2 ? Error on Mg2 index
121-128 F8.4 0.1nm e_Mgb ? Error on Mgb index
130-137 F8.4 0.1nm e_Fe5270 ? Error on Fe5270 index
139-146 F8.4 0.1nm e_Fe5335 ? Error on Fe5335 index
148-155 F8.4 0.1nm e_Fe5406 ? Error on Fe5406 index
157-164 F8.4 0.1nm e_Fe5709 ? Error on Fe5709 index
166-173 F8.4 0.1nm e_Fe5782 ? Error on Fe5782 index
175-182 F8.4 0.1nm e_NaD ? Error on NaD index
184-191 F8.4 mag e_TiO1 ? Error on TiO1 index
193-200 F8.4 mag e_TiO2 ? Error on TiO2 index
202-209 F8.4 0.1nm e_HdeltaA ? Error on HdeltaA index
211-218 F8.4 0.1nm e_HgammaA ? Error on HgammaA index
220-227 F8.4 0.1nm e_HdeltaF ? Error on HdeltaF index
229-236 F8.4 0.1nm e_HgammaF ? Error on HgammaF index
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Byte-by-byte Description of file: phot.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [NGC]
5- 8 I4 --- NGC NGC cluster number (1)
11- 20 A10 --- GC Globular cluster designation (G1)
21 A1 --- n_GC [*] Individual note on photometry (2)
23- 31 F9.5 deg RAdeg Right ascension (J2000)
34- 42 F9.5 deg DEdeg Declination (J2000)
44- 48 F5.2 mag Bmag ? B (FORS2) magnitude
50- 53 F4.2 mag e_Bmag ? Error of B magnitude
55- 59 F5.2 mag Vmag ? V (FORS2) magnitude
61- 64 F4.2 mag e_Vmag ? Error of V magnitude
66- 70 F5.2 mag Rmag ? R (FORS2) magnitude
72- 75 F4.2 mag e_Rmag ? Error of V magnitude
77- 81 F5.2 mag Imag ? I (FORS2) magnitude
83- 86 F4.2 mag e_Imag ? Error of V magnitude
88- 92 F5.2 mag Ksmag ? Ks (ISAAC) magnitude
94- 97 F4.2 mag e_Ksmag ? Error of V magnitude
99-102 I4 km/s RV Radial velocity
104-106 I3 km/s e_RV Error of RV
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Note (1): Note on cluster photometry:
NGC 1380 & NGC 2434:
B-band photometry was performed on HST/WFPC2 data.
V and I magnitudes were extracted from VLT/FORS2 data
NGC 3115:
Optical photometry was performed on VLT/FORS2 data.
Near-infrared K-band magnitudes were measured on VLT/ISAAC data
and taken from Puzia et al. (2002A&A...391..453P 2002A&A...391..453P).
NGC 3379:
All photometric data were obtained with VLT/FORS2 data.
NGC 3585:
B and I-band photometry was obtained with VLT/FORS2 data.
The V-band measurements were performed on HST/WFPC2 data
NGC 5846 & NGC 7192:
Optical photometry was performed on VLT/FORS2 data.
Near-infrared K-band magnitudes were measured on VLT/ISAAC data
and taken from Hempel et al. (2003A&A...405..487H 2003A&A...405..487H)
Note (2): Individual note on globular cluster photometry:
2434m2GC29: all passbands from HST/WFPC2 photometry
2434m2GC37: I-band data uncertain due to nearby blooming spike.
V-band data was calibrated assuming V-I=1.0.
3379m1GC20: all passbands from HST/WFPC2 photometry
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Global notes:
Note (G1): Globular cluster designation:
Name ([NGCNo.]m[maskNo.]GC[slitNo.])
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Acknowledgements: Thomas H. Puzia
(End) Thomas H. Puzia [STScI Baltimore], Patricia Bauer [CDS] 05-Feb-2004