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2003•The Astrophysical JournalOpen access

A Compact Central Object in the Supernova Remnant Kesteven 79

Frederick D. Seward, Patrick O. Slane, Randall K. Smith, Ming Sun

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Abstract

A Chandra X-ray observation has detected an unresolved source at the center of the supernova remnant Kes 79. The best single-model fit to the source spectrum is a blackbody with an X-ray luminosity of L X (0.3-8.0 keV) = 7 × 10 33 ergs s -1 . There is no evidence for a surrounding pulsar wind nebula. There are no cataloged counterparts at other wavelengths, but the absorption is high. The source properties are similar to the central source in Cas A even though the Kes 79 remnant is considerably older.

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What this paper is about

A Chandra X-ray observation has detected an unresolved source at the center of the supernova remnant Kes 79. The best single-model fit to the source spectrum is a blackbody with an X-ray luminosity of L X (0.3-8.0 keV) = 7 × 10 33 ergs s -1 . There is no evidence for a surrounding pulsar wind nebula. There are no cataloged counterparts at other wavelengths, but the absorption is high. The source properties are similar to the central source in Cas A even though the Kes 79 remnant is considerably older.

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Available abstract

A Chandra X-ray observation has detected an unresolved source at the center of the supernova remnant Kes 79. The best single-model fit to the source spectrum is a blackbody with an X-ray luminosity of L X (0.3-8.0 keV) = 7 × 10 33 ergs s -1 . There is no evidence for a surrounding pulsar wind nebula. There are no cataloged counterparts at other wavelengths, but the absorption is high. The source properties are similar to the central source in Cas A even though the Kes 79 remnant is considerably older.

Key concepts: Supernova remnant, Physics, Black-body radiation, Pulsar, Astrophysics, Luminosity, Pulsar wind nebula, Near-Earth supernova

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