The hyperluminous X-ray source candidate in IC 4320: another HLX bites the dust
Sutton, A.D.; Roberts, T.P.; Gladstone, J.C.; Walton, D.J.
Professor Tim Roberts firstname.lastname@example.org
The known members of the class of hyperluminous X-ray sources (HLXs) are few in number, yet they are of great interest as they are regarded as the likeliest intermediate-mass black hole (IMBH) candidates amongst the wider population of ultraluminous X-ray sources (ULXs). Here we report optical photometry and spectroscopy of an HLX candidate associated with the galaxy IC 4320, that reveal it is a background AGN. We discuss the implications of the exclusion of this object from the small number of well-studied HLXs, that appears to accentuate the difference in characteristics between the good IMBH candidate ESO 243-49 HLX-1 and the small handful of other HLXs.
Sutton, A., Roberts, T., Gladstone, J., & Walton, D. (2015). The hyperluminous X-ray source candidate in IC 4320: another HLX bites the dust. Monthly Notices of the Royal Astronomical Society, 450(1), 787-793. https://doi.org/10.1093/mnras/stv505
|Journal Article Type||Article|
|Acceptance Date||Mar 4, 2015|
|Publication Date||Jun 11, 2015|
|Deposit Date||Apr 30, 2015|
|Publicly Available Date||May 6, 2015|
|Journal||Monthly Notices of the Royal Astronomical Society|
|Publisher||Royal Astronomical Society|
|Peer Reviewed||Peer Reviewed|
|Keywords||Accretion, Accretion discs, Black hole physics, X-rays: binaries, X-rays: galaxies.|
|Related Public URLs||http://arxiv.org/abs/1503.01711|
Published Journal Article
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society. ©: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society All rights reserved.
You might also like
The hyperluminous X‐ray source population
Unveiling the disc structure in ultraluminous X-ray source NGC 55 ULX-1
The variability behavior of NGC 925 ULX-3
A transient ultraluminous X-ray source in NGC 55