X-raying the evolution of SN 1987A. Issue Volume 12:Issue S331(2017) (17th October 2017)

• Record Type: Journal Article
• Authors: Kashyap, Vinay L.; van Dyk, David; McKeough, Katy; Primini, Frank; Jerius, Diab; Gowrishankar, Akshay; Siemiginowska, Aneta; Zezas, Andreas
• Editors: Marcowith, A.; Renaud, M.; Dubner, G.; Ray, A.; Bykov, A.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 12:Issue S331(2017)
• Page Start: 284
• Page End: 289
• Publication Date: 2017-10-17
• Subjects: supernova remnants, -- supernovae: individual (SN 1987A), -- circumstellar matter, -- methods: data analysis, -- methods: statistical, -- techniques: image processing, -- X-rays: general; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921317004690
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: SN 1987A has been observed with the Chandra X-ray Observatory over the entire course of the mission. We have re-analyzed the archival data by constructing an empirical point spread function and reconstructing high-resolution images using a Bayesian multi-scale image reconstruction algorithm. We are able to resolve structure in the equatorial ring of SN 1987A with unprecedented detail, at scales of $\approx \frac{1}{4}$ arcsec. We describe how the point spread function is constructed, and the reconstruction method, and explore the evolution of the inner ring at different epochs and passbands.