/ftp/cats/VIII/28/.



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VIII/28             Bell Laboratories H I Survey         (Stark+ 1992)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	sky.dat ravel.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=VIII/28
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drwxr-xr-x 98 cats archive 4096 Aug 19 11:00 [Up] drwxr-xr-x 3 cats archive 4096 Dec 15 2013 [TAR file] -rw-r--r-- 1 cats archive 460 Dec 21 2002 .message -r--r--r-- 1 cats archive 4559 Dec 21 2002 ReadMe -rw-r--r-- 1 cats archive 207 Sep 15 2011 +footg5.gif -rw-r--r-- 1 cats archive 2047 Mar 5 2008 +footg8.gif drwxr-xr-x 2 cats archive 20480 Sep 25 2003 fits -r--r--r-- 1 cats archive 1188 Dec 21 2002 ravel.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 6380 Dec 21 2002 sky.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : VIII/28 Bell Laboratories H I Survey (Stark+ 1992) ================================================================================ The Bell Laboratories H I Survey Stark A.A., Gammie C.F., Wilson R.W., Bally J., Linke R.A. <Astrophys. J. Suppl., 79, 77 (1992)> =1992ApJS...79...77S ================================================================================ ADC_Keywords: H I data; Interstellar medium; Surveys; Radio lines Description: The sky north of declination -40deg was observed in the 21cm line of atomic hydrogen with the FWHM=2deg beam of the 20 foot horn reflector at AT&T Bell Laboratories, Crawford Hill. The survey covers a velocity range of 654km/s centered on the Galactic standard of rest, with 5.3km/s wide filters. This survey is distinguished by its sensitivity to low surface brightness features (antenna temperature about 50mK) and relative freedom from sidelobe contamination. High-velocity clouds are extracted and catalogued automatically. The data are presented in declination zones in equatorial and polar coordinates, and as R.A. - velocity images. Introduction: Observations were made as drift scans along even declinations between -40deg and +90deg at the epoch (1981) of the observations. The horn antenna has a FWHM beam size of 2deg at 21cm. This large beam made it possible to cover the whole visible sky in 66 constant declination scans. The survey is undersampled in declination (one beam width sampling) and oversampled in right ascension (roughly quarter beamwidth sampling). The average rms noise of spectra taken at all declinations is 0.017K in 5.2km/s wide channels, although in some cases baseline problems make the survey unreliable at this level. The survey contains 19,248 spectra. The data are in FITS format.

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