J/MNRAS/416/155 Globular clusters in five early-type galaxies (Faifer+, 2011)
Gemini/GMOS imaging of globular cluster systems in five early-type galaxies.
Faifer F.R., Forte J.C., Norris M.A., Bridges T., Forbes D.A., Zepf S.E.,
Beasley M., Gebhardt K., Hanes D.A., Sharples R.M.
<Mon. Not. R. Astron. Soc., 416, 155-177 (2011)>
=2011MNRAS.416..155F 2011MNRAS.416..155F
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Photometry, SDSS
Keywords: galaxies: elliptical and lenticular, cD -
galaxies: star clusters: general
Abstract:
In this paper, we present deep high-quality photometry of globular
cluster systems (GCSs) belonging to five early-type galaxies, covering
a range of mass and environment. Photometric data were obtained with
the Gemini North and Gemini South telescopes in the filter passbands
g', r' and i'. The combination of these filters with good seeing
conditions allows an excellent separation between globular cluster
(GC) candidates and unresolved field objects.
Description:
The images presented here were taken using GMOS in imaging mode on
both the Gemini South and Gemini North telescopes.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
galaxies.dat 80 5 Galaxy sample
tablea1.dat 108 3345 Photometric catalogue of all the globular cluster
candidates in the five globular cluster systems
studied in this work
tablea2.dat 110 75 The photometric data for all the ultracompact
dwarf candidates in the five globular cluster
systems studied in this work
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See also:
J/A+A/525/A19 : Photometry of globulars in early galaxies (Chies-Santos+, 2011)
Byte-by-byte Description of file: galaxies.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [NGC]
4- 7 I4 --- NGC Galaxy NGC number
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 F4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 30 F4.1 arcsec DEs Declination (J2000)
32- 35 A4 --- MType Morphological type
37- 41 F5.2 mag BT0mag ? Deredenned total B magnitude
43- 48 F6.2 mag BMAG ? Absolute B magnitude
50- 54 F5.3 mag AB ? Absorption in B band
56- 60 F5.2 mag (m-M)0 ? Deredenned distance modulus
62- 65 F4.2 mag e_(m-M)0 ? rms uncertainty on (m-M)0
67 A1 --- l_logLX Limit flag on logLX
68- 72 F5.2 [10-7W] logLX ? X-ray luminosity
74- 80 A7 --- Env Environment (Cluster, Group or Field)
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1 A1 --- --- [N]
2- 14 A13 --- Object Globular cluster name (1)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 27 F6.3 s RAs Right ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000)
33- 34 I2 arcmin DEm Declination (J2000)
36- 41 F6.3 arcsec DEs Declination (J2000)
43- 51 F9.3 pix Xpos X position
53- 62 F10.4 pix Ypos Y position
64- 69 F6.3 mag g'0mag Deredenned g' magnitude
71- 75 F5.3 mag e_g'0mag rms uncertainty on g'0mag
77- 82 F6.3 mag r'0mag Deredenned r' magnitude
84- 88 F5.3 mag e_r'0mag rms uncertainty on r'0mag
90- 95 F6.3 mag i'0mag Deredenned i' magnitude
97-101 F5.3 mag e_i'0mag rms uncertainty on i'0mag
103-108 A6 --- Note "Merged"
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Note (1): Designation as Cluster:NNNN or Cluster:R:NNNN,
<[FFN2011] NNNNN GC NNNN> or <[FFN2011] NNNNN GC R NNNNNN> in Simbad
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1 A1 --- --- [N]
2- 14 A13 --- Object Ultra-Compact Dwarf (UCD) designation (1)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 27 F6.3 s RAs Right ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000)
33- 34 I2 arcmin DEm Declination (J2000)
36- 41 F6.3 arcsec DEs Declination (J2000)
43- 51 F9.3 pix Xpos X position
53- 62 F10.4 pix Ypos Y position
64- 69 F6.3 mag g'0mag Deredenned g' magnitude
71- 75 F5.3 mag e_g'0mag rms uncertainty on g'0mag
77- 82 F6.3 mag r'0mag Deredenned r' magnitude
84- 88 F5.3 mag e_r'0mag rms uncertainty on r'0mag
90- 95 F6.3 mag i'0mag Deredenned i' magnitude
97-101 F5.3 mag e_i'0mag rms uncertainty on i'0mag
103-106 A4 --- --- [Type]
108-110 A3 --- Type [I ] Type for ultracompact dwarf (2)
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Note (1): Designation as Cluster:R:NNNN,
<[FFN2011] NNNNN UCD NNNN> or <[FFN2011] NNNNN UCD R NNNNNN> in Simbad
Note (2): Classification of UCD:
Type I = the first group (the most secure, shown as red filled squares in
Fig. 4)
Type II = objects that seem to overlap both first and second groups
(Type I and III - red circles in Fig. 4)
Type III = the second group (less secure, and probably MW stars, shown as
green filled pentagons in Fig. 4)
Some marginally resolved UCD candidates, shown as blue filled
triangles in Fig. 4, were also found.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Mar-2012