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J/PASP/120/1        HST WFPC2 star clusters in M31. II.         (Krienke+, 2008)

A Hubble Space Telescope Survey of the Disk Cluster Population of M31. II. Advanced Camera for Surveys Pointings. Krienke O.K., Hodge P.W. <Publ. Astron. Soc. Pac. 120, 1 (2008)> =2008PASP..120....1K
ADC_Keywords: Galaxies, nearby ; Associations, stellar ; Photometry Abstract: This paper reports on a survey of star clusters in M31 based on archival images from the Hubble Space Telescope. Paper I reported results from images obtained with the Wide Field Planetary Camera 2 (WFPC2) and this paper reports results from the Advanced Camera for Surveys (ACS). The ACS survey has yielded a total of 339 star clusters, 52 of which mostly globular clusters were found to have been catalogued previously. As for the previous survey, the luminosity function of the clusters drops steeply for absolute magnitudes fainter than MV=-3; the implied cluster mass function has a turnover for masses less than a few hundred solar masses. The color-integrated magnitude diagram of clusters shows three significant features: (1) a group of very red, luminous objects: the globular clusters, (2) a wide range in color for the fainter clusters, representing a considerable range in age and reddening, and (3) a maximum density of clusters centered approximately at V=21, B-V=0.30, V-I=0.50, where there are intermediate-age, intermediate-mass clusters with ages close to 500 million years and masses of about 2000 solar masses. We give a brief qualitative interpretation of the distribution of clusters in the CMDs in terms of their formation and destruction rates. Description: For this survey we chose 27 pointings from the list (as of 2007 January 1) of ACS exposures included in the HST archives. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 72 287 New star clusters in M31
See also: J/AcA/48/455 : Globular Clusters in M31 and M33 (Mochejska+, 1998) J/AJ/119/727 : M31 globular clusters photometry (Barmby+, 2000) J/AJ/123/2490 : RV and [Fe/H] of M31 globular cluster system (Perrett+, 2002) J/AJ/122/2458 : M31 globular clusters from HST (Barmby+, 2001) J/ApJ/559/851 : Young star cluster candidates in M31 (Williams+, 2001) J/A+A/449/143 : Photometry of M31 globular cluster candidates (Ma+, 2006) J/A+A/456/985 : Radial velocities of 76 M31 candidate clusters (Galleti+, 2006) J/PASP/119/7 : HST WFPC2 star clusters in M31 (Krienke+, 2007) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [KHM31-] 7- 9 I3 --- KHM31 [284/571] KHM31 designation (KHM31 NNN in Simbad) 11- 18 F8.5 deg RAdeg Right ascension in decimal degrees (J2000.0) 20- 27 F8.5 deg DEdeg Declination in decimal degrees (J2000.0) 29- 33 F5.2 mag Vmag V magnitude 35- 38 F4.2 mag e_Vmag rms uncertainty on Vmag 40- 44 F5.2 mag Bmag ? B magnitude 46- 49 F4.2 mag e_Bmag ? rms uncertainty on Bmag 51- 55 F5.2 mag B-V ? B-V colour index 57- 61 F5.2 mag Imag ? I magnitude 63- 66 F4.2 mag e_Imag ? rms uncertainty on Imag 68- 72 F5.2 mag V-I ? V-I colour index
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Feb-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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