COS-B observations of localised high-energy gamma-ray emission from the anticentre region of the galactic disc.
Bignami, G. F.; Hermsen, W.; Bennett, K.; Buccheri, R.; Kanbach, G.; Lichti, G. G.; Mayer-Hasselwander, H. A.; Paul, J. A.; Scarsi, L.; Swanenburg, B. N.; Wills, R. D.; Bonnardeau, M.; Stiglitz, R.
Netherlands, Italy, France, Germany
Abstract
Summary. COS-B has observed sources of high-energy gamma rays in the anticentre region of the galactic disc. Only one of these (the Crab) can be positively identified with a source of radiation at other wavelengths. One of the other three (at 111 = 1960, b11 = +40) has been previously observed by SAS-2, but the others (at 111 = 1770, b11 = 70 and at 111 = 1900, b11 = 00) are reported here for the first tine. In the energy range 70 to 2000 MeW these have respective intensities of 0.8, 0.4, 0.7 relative to the Crab.