Accession Number:

ADA014603

Title:

Gas Motions in the Center of the Galaxy NGC 253 from HI Line Interferometry,

Descriptive Note:

Corporate Author:

OWENS VALLEY RADIO OBSERVATORY PASADENA CALIF

Report Date:

1975-01-01

Pagination or Media Count:

18.0

Abstract:

An interferometric study of HI 21cm line absorption against the central radio source in NGC 253 has yielded an excess of blue-shifted velocities, which is best interpreted as absorption in neutral gas moving towards the observer away from the nucleus, in confirmation of optical studies. While all molecular studies show a feature red shifted relative to the systemic velocity, the present HI study hardly shows any signal at the same velocities.

Subject Categories:

  • Astrophysics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE