Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.119..249l&link_type=abstract
(IAU, Asian-Pacific Regional Meeting, 3rd, Kyoto, Japan, Sept. 30-Oct. 5, 1984) Astrophysics and Space Science (ISSN 0004-640X),
Astronomy and Astrophysics
Astronomy
1
Nebulae, Radio Sources (Astronomy), Supernova Remnants, X Ray Sources, Astronomical Maps, Heao 2, Proportional Counters, Spaceborne Astronomy
Scientific paper
The Monoceros nebula is seen in the optical and in radio as a 3°.5 degree diameter ring. It is believed to be an old supernova remnant. Here is reported the detection of X-rays from the Monoceros nebula, confirming its supernova remnant nature. Einstein imaging proportional counter observations of 0.2 to 5 keV X-rays were analyzed to produce a surface brightness map. Preliminary modeling of the Monoceros supernova remnant yields an age of 50000 years. A large age is expected for such a large remnant. However, the remnant is found to be still in the adiabatic blast wave stage of evolution.
Leahy Denis A.
Naranan S.
Singh Kamal P.
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