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An EUVE Detection of a Low-Mass X-ray Binary? AC211 in M15

Published online by Cambridge University Press:  12 April 2016

Paul J. Callanan ,
Jay Bookbinder ,
Jeremy J. Drake  and
Antonella Fruscione
Paul J. Callanan
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge 60 Garden Street, Cambridge, MA 02138, USA; and Eureka Scientific Inc., Oakland, CA, USA
Jay Bookbinder
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge 60 Garden Street, Cambridge, MA 02138, USA; and Eureka Scientific Inc., Oakland, CA, USA
Jeremy J. Drake
Affiliation:
Center for EUV Astrophysics, 2150 Kittredge Street, University of California, Berkeley, CA 94720-5030, USA
Antonella Fruscione
Affiliation:
Center for EUV Astrophysics, 2150 Kittredge Street, University of California, Berkeley, CA 94720-5030, USA

Abstract

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We have observed M15 with EUVE, in an attempt to detect AC211, the well know globular cluster Low Mass X-ray Binary (LMXB). Our observations are part of an attempt to characterize the EUVE properties of LMXBs by looking at those towards which the extinction is extremely low (as it is for M15): these observations are impossible for the vast majority of Galactic LMXBs. EUVE successfully detected this cluster, at a countrate of 0.002 counts s−1. In this paper we discuss the association of this source with AC211, and alternative scenarios for EUVE emission from M15.

Type
VIII. Novae, X-ray Binaries
Information
International Astronomical Union Colloquium , Volume 152: Astrophysics in the Extreme Ultraviolet , 1996 , pp. 431 - 435
Copyright
Copyright © Kluwer 1996

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