| タイトル | Chandra Observations of SN 1987A: The Soft X-Ray Light Curve Revisited |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130014463 |
| 著者（英） | Dewey, D.; McCray, R.; Burrows, D. N.; Dwek, E.; Broos, P. S.; Zhekov, S. A.; Park, S.; Helder, E. A.; Racusin, J. L. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2013-01-21 |
| 言語 | eng |
| 内容記述 | We report on the present stage of SN 1987A as observed by the Chandra X-Ray Observatory. We reanalyze published Chandra observations and add three more epochs of Chandra data to get a consistent picture of the evolution of the X-ray fluxes in several energy bands. We discuss the implications of several calibration issues for Chandra data. Using the most recent Chandra calibration files, we find that the 0.5-2.0 keV band fluxes of SN 1987A have increased by approximately 6 x 10(exp-13) erg s(exp-1)cm(exp-2) per year since 2009. This is in contrast with our previous result that the 0.5-2.0 keV light curve showed a sudden flattening in 2009. Based on our new analysis, we conclude that the forward shock is still in full interaction with the equatorial ring. |
| NASA分類 | Astronomy |
| レポートNO | GSFC-E-DAA-TN8661 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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