An Erupting Classical Nova in a Globular Cluster of M87

Details An Erupting Classical Nova in a Globular Cluster of M87 An Erupting Classical Nova in a Globular Cluster of M87

2004-01-21

arxiv.org/abs/astro-ph/0401444v1

Astrophys.J. 605 (2004) L117-L120

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1086/420882

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

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