Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat.8047....0w&link_type=abstract
VizieR On-line Data Catalog: VIII/47. Originally published in: 1982A&AS...49..137W
Astronomy and Astrophysics
Astronomy
H I Data, Surveys, Galactic Plane, Atlases
Scientific paper
This catalog presents a completely sampled survey of 21-cm line profiles extending from Galactic longitude 11 to 235 degrees and nominally covering a range between latitude +2 and -2 degrees. It was observed in 1971-72 with the newly resurfaced 92-m (300-foot) telescope of the National Radio Astronomy Observatory (NRAO) in Green Bank, W.V. The spatial resolution is 0.22 degrees (13 arcmin), and the velocity resolution is 2 km/s. The line profiles have 260 values of Brightness Temperature at 1 km/s intervals, and at spacings of 0.1 degree in longitude and 0.1 degree in latitude. The r.m.s per data point varies from 1.0K at low declinations to 0.5K at high declinations. The maps at constant Galactic longitude published in the printed version are at intervals of 0.2 degrees in longitude; the spectra in this catalog are therefore spatially twice as dense. The catalog is arranged in two forms: as FITS data cubes, and as FITS binary tables. The cubes contain three-dimensional arrays of spectra for various longitude ranges. The binary tables contain spectra at constant Galactic latitude, along with coordinate and velocity information necessary for the interpretation of individual spectra. A detailed description of the telescope beam characteristics and the derivation of the temperature scale is given by Westerhout, G., Mader, G.L., and Harten, R.H. (Astron. and Astrophys. Suppl. 49, 137-141, 1982). Temperature scales of this and several other 21-cm line surveys were compared by Harten, R.H., Westerhout, G., and Kerr, F.J. (Astron.J. 80, 307-310, 1975) and found to agree to within 5 %. (1 data file).
Wendlandt H.-U.
Westerhout Gart
No associations
LandOfFree
Galactic 21-cm line Survey (Westerhout+ 1982) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Galactic 21-cm line Survey (Westerhout+ 1982), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galactic 21-cm line Survey (Westerhout+ 1982) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1481935