| dc.contributor.author | Helder, E. A. | |
| dc.contributor.author | Broos, P. S. | |
| dc.contributor.author | Dewey, Dan | |
| dc.contributor.author | Dwek, E. | |
| dc.contributor.author | McCray, Richard | |
| dc.contributor.author | Park, S. | |
| dc.contributor.author | Racusin, J. L. | |
| dc.contributor.author | Zhekov, S. A. | |
| dc.contributor.author | Burrows, David N. | |
| dc.date.accessioned | 2015-02-12T21:35:27Z | |
| dc.date.available | 2015-02-12T21:35:27Z | |
| dc.date.issued | 2013-02 | |
| dc.date.submitted | 2012-09 | |
| dc.identifier.issn | 0004-637X | |
| dc.identifier.issn | 1538-4357 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/94522 | |
| dc.description.abstract | 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 ~6 × 10[superscript –13] erg s[superscript –1[ cm[superscript –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. | en_US |
| dc.description.sponsorship | Smithsonian Astrophysical Observatory (SAO grant GO1-12070X) | en_US |
| dc.description.sponsorship | Smithsonian Astrophysical Observatory (SAO grant GO2-13064X) | en_US |
| dc.description.sponsorship | United States. National Aeronautics and Space Administration (NASA contract NAS8-03060) | en_US |
| dc.description.sponsorship | Chandra X-ray Center (U.S.) (ACIS Instrument Team contract SV4-74018) | en_US |
| dc.language.iso | en_US | |
| dc.publisher | Institute of Physics/American Astronomical Society | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1088/0004-637x/764/1/11 | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | American Astronomical Society | en_US |
| dc.title | CHANDRA OBSERVATIONS OF SN 1987A: THE SOFT X-RAY LIGHT CURVE REVISITED | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Helder, E. A., P. S. Broos, D. Dewey, E. Dwek, R. McCray, S. Park, J. L. Racusin, S. A. Zhekov, and D. N. Burrows. “ CHANDRA OBSERVATIONS OF SN 1987A: THE SOFT X-RAY LIGHT CURVE REVISITED .” The Astrophysical Journal 764, no. 1 (January 21, 2013): 11. © 2013 American Astronomical Society. | en_US |
| dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
| dc.contributor.mitauthor | Dewey, Dan | en_US |
| dc.relation.journal | Astrophysical Journal | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dspace.orderedauthors | Helder, E. A.; Broos, P. S.; Dewey, D.; Dwek, E.; McCray, R.; Park, S.; Racusin, J. L.; Zhekov, S. A.; Burrows, D. N. | en_US |
| dspace.mitauthor.error | true | |
| mit.license | PUBLISHER_POLICY | en_US |
| mit.metadata.status | Complete | |
