Gamma-ray astronomy

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On the correlation between radio and X-ray flux in Low/Hard state Black Holes

(2002)

Authors:

E Gallo, R Fender, G Pooley

The Hard Truth about Some "Soft" X-ray Transients

(2002)

Authors:

RM Bandyopadhyay, C Brocksopp, RP Fender

Near-Infrared Synchrotron Emission from the Compact Jet of GX 339–4

The Astrophysical Journal American Astronomical Society 573:1 (2002) l35-l39

Authors:

S Corbel, RP Fender

The orbital modulation in the radio emission of Cygnus X-1

(2002)

Authors:

C Brocksopp, RP Fender, GG Pooley

Simultaneous single-pulse observations of radio pulsars: II. Orthogonal polarization modes in PSR B1133+16

ArXiv astro-ph/0205550 (2002)

Authors:

A Karastergiou, M Kramer, S Johnston, AG Lyne, NDR Bhat, Y Gupta

Abstract:

In this paper, we present a study of orthogonal polarization modes in the radio emission of PSR B1133+16, conducted within the frame of simultaneous, multi-frequency, single-pulse observations. Simultaneously observing at two frequencies (1.41 GHz and 4.85 GHz) provides the means to study the bandwidth of polarization features such as the polarization position angle. We find two main results. First, that there is a high degree of correlation between the polarization modes at the two frequencies. Secondly, the modes occur more equally and the fractional linear polarization decreases towards higher frequencies. We discuss this frequency evolution and propose propagation effects in the pulsar magnetosphere as its origin.