The 1982 ultraviolet eclipse of the symbiotic binary AR PAV

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DOIResolve DOI: http://doi.org/10.1086/161531
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TypeArticle
Journal titleThe Astrophysical Journal
ISSN0004-637X
Volume275
Issue1
Pages271277; # of pages: 7
SubjectCompanion Stars; Eclipsing Binary Stars; Hot Stars; M Stars; Stellar Spectra; Ultraviolet Astronomy; Giant Stars; Iue; Light Curve; Stellar Models
AbstractObservations with the International Ultraviolet Explorer (IUE) of the symbiotic binary AR Pav through its 1982 eclipse show that the hot star is not eclipsed. The hot star is associated with an extended region of continuum emission which is partially eclipsed. The eclipsed radiation is hotter near to its center, with a maximum temperature of about 9000 K. The uneclipsed flux is hotter than this. UV emission lines are not measurably eclipsed and presumably arise in a much larger region than the continuum. These data provide new constraints on models of the system but also are apparently in contradiction to those based on ground-based data.
Publication date
LanguageEnglish
AffiliationNRC Herzberg Institute of Astrophysics; National Research Council Canada
Peer reviewedYes
NRC number22949
NPARC number21275072
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Record identifier8037a764-64e8-4698-a576-0a61b0cb96c4
Record created2015-05-06
Record modified2016-05-09
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