An Erupting Classical Nova in a Globular Cluster of M87 | Zendy

Michael M. Shara | Zendy; David Zurek | Zendy; Edward A. Baltz | Zendy; Tod R. Lauer | Zendy; Joseph Silk | Zendy

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An Erupting Classical Nova in a Globular Cluster of M87

Author(s) -

Michael M. Shara,

David Zurek,

Edward A. Baltz,

Tod R. Lauer,

Joseph Silk

Publication year - 2004

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 - 10.1086/420882

Subject(s) - globular cluster , physics , astrophysics , nova (rocket) , cluster (spacecraft) , astronomy , star cluster , galaxy , aeronautics , computer science , engineering , programming language

Only one certain classical nova eruption has ever been detected inside aglobular cluster - nova 1860 A.D. (T Sco) in M80. During a survey of M87 wehave detected an erupting star coincident (to within 0.08 pixels) with aglobular cluster of that giant elliptical galaxy. We are able to discountvariables in the foreground or background of M87. The light curve and color ofthe erupting star match those expected for a nova at the distance of M87. Thechance superposition of an M87 field nova on the globular cluster is veryunlikely but cannot be completely ruled out.Our detection hints at a globularcluster nova frequency $f \sim .004$ novae/cluster/year, much higher thanprevious observations have suggested

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