Nonthermal X-Ray Emission from G266.2-1.2 (RX J0852.0-4622)

Details Nonthermal X-Ray Emission from G266.2-1.2 (RX J0852.0-4622) Nonthermal X-Ray Emission from G266.2-1.2 (RX J0852.0-4622)

2001-04-21

arxiv.org/abs/astro-ph/0104353v1

Astronomy and Astrophysics

Astrophysics

4 pages, 5 figures, uses aipproc.sty & epsfig.sty. To appear in "Young Supernova Remnants" (11th Annual Astrophysics Conferenc

Scientific paper

10.1063/1.1377128

The newly discovered supernova remnant G266.2-1.2 (RX J0852.0-4622), 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. Although the presence of the Vela SNR compromises our ability to accurately determine the column density, the GIS data appear to indicate absorption considerably in excess of that for Vela itself, indicating that G266.2-1.2 may be several times more distant. An unresolved central source may be an associated neutron star, though difficulties with this interpretation persist.

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