Accession Number : AD0748983

Title :   Aperture Synthesis Study of Neutral Hydrogen in NGC 2403 and NGC 4236. I. Observations. II. Discussion,

Corporate Author : OWENS VALLEY RADIO OBSERVATORY PASADENA CALIF

Personal Author(s) : Shostak,G. S. ; Rogstad,D. H.

Report Date : 1972

Pagination or Media Count : 60

Abstract : Observational results of an aperture synthesis study of neutral hydrogen in the nearby galaxies NGC 2403 and NGC 4236 are presented. Maps of the integral of the line profile at each position on the galaxies are given, as well as maps showing lines of constant radial velocity determined from the peaks of the profiles. Spatial resolution is 2' of arc; velocity resolution is 21 km/s. In addition, line profiles for the galaxies as a whole and maps of the 1420 MHz continuum radiation from each object are displayed. (Author)

Descriptors :   (*INTERSTELLAR MATTER, HYDROGEN), (*EXTRATERRESTRIAL RADIO WAVES, GALAXIES), RADIO INTERFEROMETERS, FOURIER ANALYSIS, MAPS, ASTRONOMY

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE