| タイトル | X-Ray Emitting Ejecta in Puppis A Observed with Suzaku |
| 本文（外部サイト） | http://hdl.handle.net/2060/20080030339 |
| 著者（英） | Flanagan, K.; Petre, R.; Hwang, U. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2008-01-01 |
| 言語 | eng |
| 内容記述 | We report the detection and localization of X-ray emitting ejecta in the middle-aged Galactic supernova remnant Puppis A using five observations with the Suzaku X-ray Imaging Spectrometer to survey the eastern and middle portions of the remnant. A roughly 3' x 5', double-peaked region in the north center is found to be highly enriched in Si and other elements relative to the rest of the remnant. The X-ray fitted abundances are otherwise well below the solar values. While the ejecta-enhanced regions show some variation of relative element abundances, there is little evidence for a very strong enhancement of one element over the others in the imaged portion of the remnant, except possibly for a region of 0 and Ne enhancement in the remnant's south center. There is no spatial correlation between the compact [0 1111 emitting ejecta knots seen optically and the abundance enhancements seen in X-rays, although they are located in the same vicinity. The map of fitted column density shows strong variations across the remnant that echo earlier X-ray spectral hardness maps. The ionization age (as fitted for single temperature models) is sharply higher in a ridge behind the northeast-east boundary of the remnant, and is probably related to the strong molecular cloud interaction along that boundary. The temperature map, by comparison, shows relatively weak variations. |
| NASA分類 | Astronomy |
| 権利 | Copyright, Distribution as joint owner in the copyright |
|
