/ftp/cats/aliases/P/PSG2007



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J/MNRAS/377/300     CT1 photometry in 6 star cluster of the SMC (Piatti+, 2007)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	table?.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/MNRAS/377/300
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drwxr-xr-x 11 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 Dec 15 2013 [TAR file] -rw-r--r-- 1 cats archive 470 May 1 2008 .message -r--r--r-- 1 cats archive 5579 May 1 2008 ReadMe -r--r--r-- 1 cats archive 771924 Apr 11 2008 table2.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1106546 Apr 11 2008 table3.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1106546 Apr 11 2008 table4.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1286895 Apr 11 2008 table5.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 858922 Mar 11 2008 table6.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 835622 Mar 11 2008 table7.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/MNRAS/377/300 CT1 photometry in 6 SMC star clusters (Piatti+, 2007) ================================================================================ Young star clusters immersed in intermediate-age fields in the Small Magellanic Cloud. Piatti A.E., Sarajedini A., Geisler D., Clark D., Seguel J. <Mon. Not. R. Astron. Soc., 377, 300-316 (2007)> =2007MNRAS.377..300P (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Magellanic Clouds ; Associations, stellar ; Photometry, CMT1T2V Keywords: techniques: photometric - galaxies: individual: SMC - Magellanic Clouds - galaxies: star clusters Abstract: We present CCD photometry in the Washington C and T1 filters for six star clusters (B 34, NGC 256, NGC 265, NGC 294, IC 1611 and NGC 376) in the Small Magellanic Cloud (SMC) and their surrounding fields. The resultant colour-magnitude diagrams (CMDs) extend from T1 14 to as faint as T1 22 revealing the main-sequence turnoffs of the clusters. Adopting a metallicity of Z=0.004, we compare our cluster photometry with theoretical isochrones in the Washington system in order to derive ages. To facilitate age determination of the surrounding fields, we use the magnitude difference between the helium-burning red clump stars and the main-sequence turnoff. Finally, we estimate mean metallicities for the field stars by comparing the location of the field red giant branch with standard giant branches for Galactic globular clusters of known abundance, corrected for age effects. Combining these results with our previous work, we find a clear trend of younger clusters being located closer to the centre of the SMC. In addition, there is a tendency for the mean metallicity and its dispersion to be greater inside 4deg of the SMC's centre as compared to outside this radius. As far as the properties of the field stars are concerned, we find little correlation between the ages of the clusters and those of the field stars against which they are projected. Clearly, more work needs to be done to clarify these trends. Description: The observations were carried out during four nights with the Cerro Tololo Inter-American Observatory (CTIO) 0.9-m telescope in 2002 October and 2003 December. Objects: ---------------------------------------------------------------- RA (2000) DE Designation(s) (Table) ---------------------------------------------------------------- 00 44 52 -73 00 07 B 34 = Bruck 34 = OGLE-SMC 176 (table2) 00 45 54 -73 30 24 NGC 256 = ESO 29-11 (table3) 00 47 12 -73 28 38 NGC 265 = ESO 29-14 (table4) 00 53 06 -73 22 49 NGC 294 = ESO 29-22 (table5) 00 59 48 -73 20 02 IC 1611 = ESO 29-27 (table6) 01 03 53 -72 49 34 NGC 376 = ESO 29-29 (table7) ----------------------------------------------------------------

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