/ftp/cats/aliases/M/./MBF2013_2_



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J/ApJS/205/13         VLA 1.4GHz survey of ECDF-S (DR2)         (Miller+, 2013)
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	table[34].dat
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drwxr-xr-x 8 cats archive 146 Jul 24 2013 [Up] drwxr-xr-x 3 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 470 Dec 19 2022 .message -r--r--r-- 1 cats archive 10601 May 31 2013 ReadMe -rw-r--r-- 1 cats archive 1009 Dec 1 2014 +footg5.gif -rw-r--r-- 1 cats archive 2963 Dec 1 2014 +footg8.gif -r--r--r-- 1 cats archive 124572 May 15 2013 table3.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 8134 May 15 2013 table4.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/ApJS/205/13 VLA 1.4GHz survey of ECDF-S (DR2) (Miller+, 2013) ================================================================================ The Very Large Array 1.4 GHz survey of the Extended Chandra Deep Field South: second data release. Miller N.A., Bonzini M., Fomalont E.B., Kellermann K.I., Mainieri V., Padovani P., Rosati P., Tozzi P., Vattakunnel S. <Astrophys. J. Suppl. Ser., 205, 13 (2013)> =2013ApJS..205...13M ================================================================================ ADC_Keywords: Radio sources ; Surveys ; Morphology Keywords: catalogs - radio continuum: galaxies - surveys Abstract: Deep radio observations at 1.4GHz for the Extended Chandra Deep Field South were performed in 2007 June through September and presented in a first data release. The survey was made using six separate pointings of the Very Large Array with over 40hr of observation per pointing. In the current paper, we improve on the data reduction to produce a second data release (DR2) mosaic image. This DR2 image covers an area of about a third of a square degree, reaches a best rms sensitivity of 6uJy, and has a typical sensitivity of 7.4uJy per 2.8" by 1.6" beam. We also present a more comprehensive catalog, including sources down to peak flux densities of five or more times the local rms noise along with information on source sizes and relevant pointing data. We discuss in some detail the consideration of whether sources are resolved under the complication of a radio image created as a mosaic of separate pointings each suffering some degree of bandwidth smearing, and the accurate evaluation of the flux densities of such sources. Finally, the radio morphologies and optical/near-IR counterpart identifications are used to identify 17 likely multiple-component sources and arrive at a catalog of 883 radio sources, which is roughly double the number of sources contained in the first data release. Description: In order to cover the full E-CDF-S area at near-uniform sensitivity, we pointed the VLA at six separate coordinate locations arranged in a hexagonal grid around the adopted center of the CDF-S, (J2000) 03:32:28.00-27:48:30.0. Our observations were spread over many days on account of the low declination of the field and typically amounted to 5hr of time per calendar date (see the "Note (10)" below). The images corresponding to the six individual pointings were combined to form the final mosaic image (Figure 1).