Chandra Observations of the Crab-like Supernova Remnant G21.5-0.9

Abstract

Chandra observations of the Crab-like supernova remnant G21.5-0.9 reveal a compact central core and spectral variations indicative of synchrotron burn-off of higher energy electrons in the inner nebula. The central core is slightly extended, perhaps indicating the presence of an inner wind-shock nebula surrounding the pulsar. No pulsations are observed from the central region, yielding an upper limit of ~40% for the pulsed fraction. A faint outer shell may be the first evidence of the expanding ejecta and blast wave formed in the initial explosion, indicating a composite nature for G21.5-0.9.

4 pages, 2 figures, formatted with emulateapj, submitted to ApJL

References in corpus (4)

• 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 ?
• The Interstellar Environment of Filled-Center Supernova Remnants: II. G63.7+1.1
• Study of the Composite Supernova Remnant MSH 11-62

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