RXJ 0852.0-0462: Another Nonthermal Shell-Type SNR (G266.2-1.2)

Abstract

The newly discovered supernova remnant G266.2-1.2 (RX J0852.0--0462), along the line of sight to the Vela SNR, was observed with ASCA for 120 ks. We find that the X-ray spectrum is featureless, and well described by a power law, extending to three the class of shell-type SNRs dominated by nonthermal X-ray emission. Like G347.3-0.5, this low-latitude remnant displays discrete regions of enhanced emission along the rim as well as faint nonthermal emission from the interior. We derive limits on the thermal content of the remnant emission, although the presence of the Vela SNR compromises our ability to seriously constrain a low temperature component. Limits placed on the amount of Sc-K emission are compared with the expected flux based upon the reported 44Ti emission from G2662.-1.2. We also report on an unresolved X-ray source surrounded by diffuse emission near the center of the remnant. The properties of the source are not well determined, but appear consistent with the interpretation that the source is a neutron star surrounded by a synchrotron nebula. Alternatively, the source may be associated with one of two stars located within the positional error circle, but this appears somewhat unlikely.

arXiv comment6 pages, 5 figures; to appear in the Feb. 20, 2001 issue of ApJ

References in corpus (6)

• X-Ray Emission From the Shell-Type SNR G347.3-0.5
• Discovery of Non Thermal X-Rays from the Northwest Shell of the New SNR RX J1713.7-3946: The Second SN1006 ?
• Discovery of TeV Gamma Rays from SN1006: Further Evidence for the SNR Origin of Cosmic Rays
• Nonlinear Shock Acceleration and Photon Emission in Supernova Remnants
• Overabundance of Calcium in the young SNR RX J0852$-$4622: evidence of over-production of ${}^{44}$Ti
• Evidence of 10-100 TeV Electrons in Supernova Remnants

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