J/AJ/138/770 HST/WFPC survey of M31 bright young clusters (Hodge+, 2009)
An HST/WFPC survey of bright young clusters in M31.
II. Photometry of less luminous clusters in the fields.
Hodge P.W., Krienke O.K., Bellazzini M., Perina S., Barmby P., Cohen J.G.,
Puzia T.H., Strader J.
<Astron. J., 138, 770-779 (2009)>
=2009AJ....138..770H 2009AJ....138..770H
ADC_Keywords: Galaxies, nearby ; Associations, stellar ; Photometry, HST
Keywords: galaxies: individual (NGC 224, M31, Andromeda) -
galaxies: star clusters - galaxies: stellar content - Local Group
Abstract:
We report on the properties of 89 low-mass star clusters located in
the vicinity of luminous young clusters ("blue globulars") in the disk
of M31. Eighty-two of the clusters are newly detected. We have
determined their integrated magnitudes and colors, based on a series
of Hubble Space Telescope (HST)/Wide Field Planetary Camera 2
exposures in blue and red (HST filters F450W and F814W).
Description:
The observations, obtained with WFPC2 of the HST, were described in
detail in Perina et al. (2009A&A...494..933P 2009A&A...494..933P). The images were
obtained with blue (HST F450W) and red (HST F814W) filters,
approximately in the traditional B and I bands.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 51 89 Star clusters of the survey
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See also:
J/AJ/122/2458 : M31 globular clusters from HST (Barmby+, 2001)
J/A+A/416/917 : M31 globular clusters Revised Bologna Catalog (Galleti+, 2004)
J/A+A/449/143 : Photometry of M31 globular cluster candidates (Ma+, 2006)
J/A+A/471/127 : New globular clusters in M31 (Galleti+, 2007)
J/A+A/507/1375 : HST/ACS VI data of M31 globular clusters (Perina+, 2009)
J/AJ/137/94 : Star clusters in M31 (Caldwell+, 2009)
J/PASP/119/7 : HST WFPC2 star clusters in M31 (Krienke+, 2007)
J/PASP/120/1 : HST WFPC2 star clusters in M31. II. (Krienke, 2008)
J/PASP/122/745 : HST WFPC2 star clusters in M31. III. (Hodge+, 2010)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Cluster name (1)
10- 17 F8.5 deg RAdeg Right ascension in decimal degrees (J2000)
19- 26 F8.5 deg DEdeg Declination in decimal degrees (J2000)
28- 32 F5.2 mag F450W HST/ACS magnitude F450W
34- 37 F4.2 mag e_F450W rms uncertainty on F450W
39- 43 F5.2 mag F450W-F814W ? HST F450W-F814W colour index
45- 48 F4.2 mag e_F450W-F814W ? rms uncertainty on F450-F814W
50- 51 A2 --- Notes [*y ] Notes (2)
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Note (1): Cluster name or sequential number, identified as
<[HKB2009] NN> in Simbad
Note (2): Notes as follows:
* = uncertain colors because of a low ratio of signal to galaxy
background in the F814W image
y = CMDs indicating young ages, less than ∼5x108 years
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History:
From electronic version of the journal
References:
Perina et al., Paper I 2009A&A...494..933P 2009A&A...494..933P
Barmby et al., Paper III 2009AJ....138.1667B 2009AJ....138.1667B Cat. J/AJ/138/1667
(End) Patricia Vannier [CDS] 02-Jan-2012