Astronomy and Astrophysics – Astronomy
Scientific paper
May 1969
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969natur.222..865s&link_type=abstract
Nature, Volume 222, Issue 5196, pp. 865 (1969).
Astronomy and Astrophysics
Astronomy
19
Scientific paper
LAST year saw the birth of observational gamma-ray astronomy with the detection of cosmic gamma-rays with energies above 100 MeV energy by Clark et al.1. Their results indicated that cosmic gamma-radiation is strongly anisotropic, being most intense in the galactic plane and particularly at the galactic centre. There seems to be a background component of isotropic gamma-radiation possibly of extragalactic origin (which I have already discussed in ref. 2) having a magnitude of ~ 1×10-4 cm-2 s-1 sr-1 Superimposed on this background there seems to be a component from the galactic disk, having a line intensity of 1-2 × 10-4 cm-2 s-1 rad-1. Gamma-rays coming from the region of the galactic centre have a line intensity of 4-5 × 10-4 cm-2 s-1 rad-1. Clark et al.1 suggested that these fluxes, being an order of magnitude higher than those predicted from various diffuse production mechanisms, may originate mainly in unresolved discrete sources (a suggestion which was further explored by Ögelmann3). They were careful to point out, however, that large amounts of undetected hydrogen may also account for these fluxes.
No associations
LandOfFree
Origin of Galactic Gamma-rays 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 Origin of Galactic Gamma-rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Origin of Galactic Gamma-rays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1390336