Other
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasj...45..795y&link_type=abstract
PASJ: Publications of the Astronomical Society of Japan, vol. 45, no. 6, p. 795-800
Other
5
Satellite Observation, Supernova Remnants, X Ray Sources, X Ray Spectra, Astronomical Satellites, Emission Spectra, Rosat Mission, X Ray Spectroscopy
Scientific paper
X-rays above 1.2 keV were observed near to the region of the supernova remnant RX 04591+5147, which was discovered by Roentgen Satellite (ROSAT). The scan profile in the 1.2-3 keV energy band shows extended emission which is consistent with the soft X-ray image observed with ROSAT. On the other hand, the scan profile above 3 keV shows a more complex structure with two bumps near to the north and south edges of the supernova remnant. The X-ray spectrum cannot be explained by the single-temperature thin thermal emission in the ionization equilibrium, but requires non-equilibrium ionization or a multi-temperature plasma. The iron K-line emission was discovered with the equivalent width of 140 +/- 90 eV (90% confidence). This also indicates that the supernova remnant has a higher temperature plasma than that determined by the ROSAT satellite. We suggest that a non-equilibrium ionization plasma can account for the overall X-ray properties over a wide energy range from the ROSAT to the Ginga bands.
Asaoka Ikuko
Hayashida Kiyoshi
Koyama Katsuji
Nomoto Susumu
Tsunemi Hiroshi
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