An X-ray study of the Monoceros supernova remnant

Details An X-ray study of the Monoceros supernova remnant An X-ray study of the Monoceros supernova remnant

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.220..501l&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 220, May 15, 1986, p. 501-511. NSERC-supported research

Astronomy and Astrophysics

Astronomy

11

Astronomical Spectroscopy, Supernova Remnants, X Ray Astronomy, Gas Temperature, Heao 2, Point Sources, Shock Waves, Spectrum Analysis

Scientific paper

Twelve Einstein IPC exposures within the region of the Monoceros supernova remnant are combined into a 0.2 - 4 keV X-ray map with 80 arcsec resolution. The X-ray bright regions correlate well with the bright optical filaments. From the IPC pulse height spectra, the bright regions are found to have a 2 - 6 keV high-temperature component, while all regions show a fainter 0.2 - 0.3 keV temperature component. A model with the supernova shock wave expanding into a three-component interstellar medium with a low-density (0.003 cm-3) hot component can fit the observed properties of Monoceros. Preferred values for the distance and age are 1500 pc and 3×104yr. The overall observed expansion of 50 km s-1 can be explained by outward moving clouds interior to the shock front.

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