Observations of neutral hydrogen in bright southern galaxies

Details Observations of neutral hydrogen in bright southern galaxies Observations of neutral hydrogen in bright southern galaxies

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977aujph..30..187w&link_type=abstract

Australian Journal of Physics, vol. 30, Apr. 1977, p. 187-207.

Astronomy and Astrophysics

Astronomy

65

Galaxies, H Lines, Hydrogen Clouds, Radio Astronomy, Astronomical Maps, Density Distribution, Isophotes, Radial Velocity, Tables (Data)

Scientific paper

Neutral hydrogen was detected in 36 out of 46 galaxies observed at 21-cm wavelength. Eighteen of the larger ones were partially mapped, and estimates of hydrogen and total mass obtained. Without correction for optical-depth effects, median values hydrogen mass and the ratio of hydrogen to total mass were 7.5 billion solar masses and 0.07, respectively. These values are similar to the average values found previously for Sc-Scd galaxies (the median morphological type for the sample). The lowest hydrogen/total mass ratios were found for NGC 253 and 4945, probably because of absorption of the nuclear continuum in addition to any hydrogen self-absorption.

Affiliated with

Also associated with

No associations

Rating

Observations of neutral hydrogen in bright southern galaxies 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 Observations of neutral hydrogen in bright southern galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of neutral hydrogen in bright southern galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1616912