/ftp/cats/J/ApJS/175/./147



==========================================================================
II/295           Spitzer IRAC survey of the galactic center     (Ramirez+, 2008)
The following files can be converted to FITS (extension .fit or fit.gz)
	table[2-5].dat table6.dat table7.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/295
==========================================================================

drwxr-xr-x 351 cats archive 8192 Feb 6 15:27 [Up] drwxr-xr-x 2 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 487 Dec 19 2022 .message -r--r--r-- 1 cats archive 12182 Apr 23 2010 ReadMe -rw-r--r-- 1 cats archive 1005 Sep 26 2010 +footg5.gif -rw-r--r-- 1 cats archive 2940 Sep 26 2010 +footg8.gif -rw-r--r-- 1 cats archive 546 Dec 1 2012 dic2295.tst -rw-r--r-- 1 cats archive 10240 Sep 26 2010 ori.tar -r--r--r-- 1 cats archive 21642929 Jun 12 2009 table2.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 20524492 Jun 12 2009 table3.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 14637651 Jun 12 2009 table4.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 9694588 Jun 12 2009 table5.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 6344 Jun 12 2009 table6.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 62587516 Apr 22 2010 table7.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : II/295 Spitzer IRAC survey of the galactic center (Ramirez+, 2008) ================================================================================ Point sources from a Spitzer IRAC survey of the galactic center. Ramirez S.V., Arendt R.G., Sellgren K., Stolovy S.R., Cotera A., Smith H.A., Yusef-Zadeh F. <Astrophys. J. Suppl. Ser., 175, 147-164 (2008)> =2008ApJS..175..147R ================================================================================ ADC_Keywords: Cross identifications ; Surveys ; Photometry, infrared Mission_Name: Spitzer Keywords: Galaxy: center - stars: late-type Abstract: We have obtained Spitzer IRAC observations of the central 2.0degx1.4deg ( 280x200pc) of the Galaxy at 3.6-8.0um. A point-source catalog of 1065565 objects is presented. The catalog includes magnitudes for the point sources at 3.6, 4.5, 5.8, and 8.0um, as well as JHKs photometry from Two Micron All Sky Survey (2MASS). The point-source catalog is confusion limited with average limits of 12.4, 12.1, 11.7, and 11.2mag for [3.6], [4.5], [5.8], and [8.0], respectively. We find that the confusion limits are spatially variable because of stellar surface density, background surface brightness level, and extinction variations across the survey region. The overall distribution of point-source density with Galactic latitude and longitude is essentially constant, but structure does appear when sources of different magnitude ranges are selected. Bright stars show a steep decreasing gradient with Galactic latitude and a slow decreasing gradient with Galactic longitude, with a peak at the position of the Galactic center. From IRAC color-magnitude and color-color diagrams, we conclude that most of the point sources in our catalog have IRAC magnitudes and colors characteristic of red giant and asymptotic giant branch (AGB) stars.