A highly polarized radio jet during the 1998 outburst of the black hole transient XTE J1748–288

XTE J1748−288 is a black hole X-ray transient which went into outburst in 1998 June. The X-ray light curves showed canonical morphologies, with minor variations on the ‘fast rise exponential decay’ profile. The radio source, however, reached an unusually high flux density of over 600 mJy. This high...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2007-07, Vol.378 (3), p.1111-1117
Main Authors: Brocksopp, C., Miller-Jones, J. C. A., Fender, R. P., Stappers, B. W.
Format: Article
Language:English
Subjects:
accretion
accretion discs
Accretion disks
accretion, accretion discs
Astronomy
Astrophysics
Black holes
Double stars
Earth, ocean, space
Exact sciences and technology
ISM: jets and outflows
stars: individual: XTE J1748−288
X-ray astronomy
X-rays: binaries
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Summary:XTE J1748−288 is a black hole X-ray transient which went into outburst in 1998 June. The X-ray light curves showed canonical morphologies, with minor variations on the ‘fast rise exponential decay’ profile. The radio source, however, reached an unusually high flux density of over 600 mJy. This high radio flux was accompanied by an exceptional (>20 per cent) fractional linear polarization, the variability of which was anticorrelated with the flux density. We use this variability to discuss possible depolarization mechanisms and to predict the underlying behaviour of the (unresolved) core/jet components.
ISSN:0035-8711
1365-2966
DOI:10.1111/j.1365-2966.2007.11846.x