Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...335..135o&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 335, Dec. 1, 1988, p. 135-141.
Astronomy and Astrophysics
Astronomy
19
Andromeda Galaxy, Gamma Ray Astronomy, Local Group (Astronomy), Magellanic Clouds, Cosmic Rays, Extraterrestrial Radiation, Galactic Structure, Gamma Ray Observatory
Scientific paper
In the near future, high-energy (E greater than 20 MeV) gamma-ray astronomy offers the promise of a new means of examining the closest galaxies. Three local galaxies, the SMCs, LMCs, and M31, should be visible to the high-energy gamma-ray telescope on the Gamma Ray Observatory and the first two should be seen by GAMMA-1. It is expected that the intensity and the structure of both of the Magellanic Clouds can be examined in sufficient detail to study the cosmic-ray density and its variation, and, thereby, to determine the relevant scale of coupling for the cosmic rays and diffuse matter. With the assumptions of adequate sources and reasonable magnetic field strengths, both of which should likely be satisfied, very specific predictions of the gamma-ray emission can be made separating the three current cosmic-ray containment concepts, namely that it is on the scale of one to a few kiloparsec mass clustering, the whole galaxy, or some much larger scale. Further, because of the markedly different distributions of molecular and atomic hydrogen in the galaxies and the differences between the galaxies, an independent measure of the normalization of the diffuse molecular hydrogen density is possible.
Fichtel Carl E.
Ozel Mehmet Emin
No associations
LandOfFree
Prospects for exploring the local galaxies through the study of their high-energy gamma-ray emission 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 Prospects for exploring the local galaxies through the study of their high-energy gamma-ray emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prospects for exploring the local galaxies through the study of their high-energy gamma-ray emission will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1752969