Chandra observation of an ultraluminous X-ray source from the Galaxy NGC 12911

Details Chandra observation of an ultraluminous X-ray source from the Galaxy NGC 12911 Chandra observation of an ultraluminous X-ray source from the Galaxy NGC 12911

Publishing date

2009-02-27

URL

arxiv.org/abs/0902.4841v1

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

High Energy Astrophysical Phenomena

Type

Scientific paper

Abstract

I report the analysis of an ultraluminous X-ray source (ULX) located in the galaxy NGC 1291. This X-ray point source is denominated IXO6 in the Catalog of Candidate IXO (Colbert & Ptak). An Intermediate-luminosity X-ray Object (IXO) is defined as an off-nuclear, compact object with luminosity Lx [2-10keV] >= 1039 erg s-1. The cutoff Lx is defined as a value greater than the Eddington luminosity of a 1.4 Mo black hole (10 38.3 erg s-1). IXO is an early denomination of what is call now a ULX point source. The Catalog was derived from a ROSAT survey and represents 87 IXOS in 54 galaxies. IXO6 was selected because of being positioned in the outer disk of the galaxy, with no near X-ray source neighbors. The study of this ULX pretends to confirm certain assumptions related to this class of objects (Roberts et al.)

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