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Title:
Ultra-Deep Chandra Observation of Galactic Oxygen-Rich Supernova Remnant G292.0+1.8: The First Images
Authors:
Park, Sangwook; Burrows, D. N.; Hughes, J. P.; Slane, P. O.; Gaensler, B. M.; Ghavamian, P.
Affiliation:
AA(Pennsylvania State Univ), AB(Pennsylvania State Univ), AC(Rutgers Univ), AD(SAO), AE(Univ. of Sydney, Australia), AF(Johns Hopkins Univ.)
Publication:
American Astronomical Society Meeting 210, #44.08; Bulletin of the American Astronomical Society, Vol. 38, p.159
Publication Date:
05/2007
Origin:
AAS
Bibliographic Code:
2007AAS...210.4408P

Abstract

We present the first images of Galactic O-rich supernova remnant (SNR) G292.0+1.8 from our ultra-deep 0.5 Msec Chandra observation. The deep Chandra ACIS data cover the entire SNR, revealing all the detailed substructures of the outermost boundary of the blast wave and new metal-rich ejecta features which were not detected by previous Chandra observation that had a 10 times shorter exposure and a small field of view. Our deep Chandra data also discover the spectacular structure of a torus and a jet in the central pulsar wind nebula (PWN), reminiscent of the Crab nebula. Utilizing extremely rich photon statistics, we present high-quality images of O-, Ne-, Mg-, and Si-rich ejecta, dense circumstellar medium produced by the massive progenitor's stellar winds and then shocked by the blast wave, the blast wave shock front propagating into a low-density ambient medium all around the SNR, and the fine-structure of the central PWN.
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