Pulsars, transients and relativistic astrophysics

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Radio Properties of the X-Ray Binary GX 339–4

International Astronomical Union Colloquium Cambridge University Press (CUP) 164 (1998) 349-350

Authors:

RK Sood, D Campbell-Wilson, Ph Durouchoux, S Corbel, R Fender, R Spencer, MA Nowak, AK Tzioumis
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The cosmic evolution of giant radiosources

OBSERVATIONAL COSMOLOGY 226 (1998) 233-238
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The evolution of radio sources from complete samples

ASTROPHYS SPACE SC L 226 (1998) 179-184

Authors:

KM Blundell, S Rawlings, CJ Willott, M Lacy

Abstract:

From new complete samples of radio sources selected at low flux limits in low radio frequency, which give significantly improved coverage of the luminosity-redshift plane, we are able to decouple dependencies of source properties on redshift, from those depending on luminosity. We describe, with particular reference to the unification of radio galaxies and quasars, trends in linear size and also discuss core properties of these objects.
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The variable radio emission from GRS 1915 + 105

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 292:4 (1997) 925-933

Authors:

GG Pooley, RP Fender
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A deep search for radio emission from three X-ray pulsars: Are radio emission and X-ray pulsations anti-correlated?

European Space Agency, (Special Publication) ESA SP (1997) 303-306

Authors:

RP Fender, P Roche, GG Pooley, D Chakrabarty, AK Tzioumis, MA Hendry, RE Spencer

Abstract:

We present results from a deep search for radio emission, from the X-ray pulsar systems GX 1+4, GS 0834-430 & 4U 0115+63 which have variously been suggested to possess radio jets and to be good candidates for propeller ejection mechanisms. None of these sources is detected at their optical positions, to 3σ limits of a few hundred μJy. This places upper limits on their radio luminosities and thus on the internal energy and numbers of any relativistic electrons which are three to four orders of magnitude below those of radio-bright X-ray binaries such as SS 433 & Cyg X-3. Spectral and structural information on the proposed 'radio lobes' of GX 1+4 make their association with the source unlikely. The lack of detected radio emission from any X-ray pulsar system is discussed statistically, and it is found that X-ray pulsations and radio emission from X-ray binaries are strongly anti-correlated.