J/MNRAS/345/949 UBRI photometry of NGC 3379 globular clusters (Whitlock+, 2003)
UBRI photometry of globular clusters in the Leo group galaxy NGC 3379.
Whitlock S., Forbes D.A., Beasley M.A.
<Mon. Not. R. Astron. Soc., 345, 949-959 (2003)>
=2003MNRAS.345..949W 2003MNRAS.345..949W
ADC_Keywords: Clusters, globular ; Photometry, UBVRI
Keywords: globular clusters: general - galaxies: individual: NGC 3379 -
galaxies: star clusters
Abstract:
We present wide-area UBRI photometry for globular clusters around the
Leo group galaxy NGC 3379. Globular cluster candidates are selected
from their B-band magnitudes and their (U-B)0 versus (B-I)0
colours. A colour-colour selection region was defined from photometry
of the Milky Way and M31 globular cluster systems. We detect 133
globular cluster candidates, which supports previous claims of a low
specific frequency for NGC 3379.
Description:
Broad-band UBRI images covering the Leo galaxies NGC 3379, 3384 and
3389 were obtained using the 2.5-m Isaac Newton Telescope (INT) on
2000 February 6 and 8.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 64 133 Candidate Globular Clusters around NGC 3379
--------------------------------------------------------------------------------
See also:
J/AJ/108/2087 : Globular Clusters in Ellipticals (Ajhar+ 1994)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- [WFB2003] Sequential number
4 A1 --- n_[WFB2003] [*] Note (1)
6- 7 I2 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 16 F5.2 s RAs Right ascension (J2000)
18 A1 --- DE- Declination sign (J2000)
19- 20 I2 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 29 F5.2 arcsec DEs Declination (J2000)
33- 37 F5.2 mag Umag RGO U-band (0.3581um) magnitude
40- 44 F5.2 mag Bmag Harris B-band (0.4298um) magnitude
47- 51 F5.2 mag Rmag Harris R-band (0.6380um) magnitude
54- 58 F5.2 mag Imag RGO I-band (0.8063um) magnitude
61- 64 F4.2 mag B-I B-I colour index
--------------------------------------------------------------------------------
Note (1): *: Globular cluster present in the Gemini selected object lists.
Galaxy centre is RA=10:47:49.6, DE=+12:34:55 (J2000).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Dec-2003