ar X iv : a st ro - p h / 07 03 52 0 v 1 2 0 M ar 2 00 7 Limits on iron - dominated fallback disk in SN 1987 A

Abstract

The non-detection of a point source in SN 1987A imposes an upper limit for the optical luminosity of Lopt∼2 L⊙. This limits the size of a possible fallback disk around the stellar remnant. Assuming a steady-state thin disk with blackbody emission requires a disk smaller than 100 000 km if the accretion rate is at 30% of the Eddington rate [6]. We have performed detailed non-LTE radiation transfer calculations to model the disk spectrum more realistically. It turns out that the observational limit on the disk extension becomes even tighter, namely 70 000 km.

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Cite this paper

@inproceedings{Werner2007arXI, title={ar X iv : a st ro - p h / 07 03 52 0 v 1 2 0 M ar 2 00 7 Limits on iron - dominated fallback disk in SN 1987 A}, author={Klaus Werner}, year={2007} }