On the Emergence and Discovery of Hot Spots in SNR 1987A | Zendy

Stephen S. Lawrence | Zendy; Ben Sugerman | Zendy; P. Bouchet | Zendy; Arlin Crotts | Zendy; R. Uglesich | Zendy; Steve Heathcote | Zendy

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On the Emergence and Discovery of Hot Spots in SNR 1987A

Author(s) -

Stephen S. Lawrence,

Ben Sugerman,

P. Bouchet,

Arlin Crotts,

R. Uglesich,

Steve Heathcote

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312771

Subject(s) - ejecta , supernova , hot spot (computer programming) , spots , astrophysics , trace (psycholinguistics) , supernova remnant , physics , astronomy , computer science , chemistry , philosophy , operating system , linguistics

We present the discovery of several new regions of interaction between theejecta and equatorial circumstellar ring of SN1987A, an interaction leading toa much expanded development of the supernova remnant. We also trace thedevelopment of the first such "hot spot," discovered in 1997, back to 1995.Later hot spots seem to have emerged by early 1999. We discuss mechanisms forthe long delay between the first and later spots.Comment: 12 pages, 2 figures; AASTeX v5.0 LaTeX 2e macros; submitted to the Astrophysical Journal Letters on 2000 April 5; includes another epoch of HST imaging; revisions to table and figures; added text on dection criteri

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