Pulsars, transients and relativistic astrophysics

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Discovery of the low-energy cutoff in a powerful giant radio galaxy

(2006)

Authors:

Katherine Blundell, Andy Fabian, Carolin Crawford, Mary Erlund, Annalisa Celotti
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A radio-emitting outflow in the quiescent state of A0620-00: implications for modelling low-luminosity black hole binaries

(2006)

Authors:

E Gallo, R Fender, J Miller-Jones, A Merloni, P Jonker, S Heinz, T Maccarone, M van der Klis
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Spitzer Reveals Infrared Optically-Thin Synchrotron Emission from the Compact Jet of the Neutron Star X-Ray Binary 4U 0614+091

(2006)

Authors:

S Migliari, JA Tomsick, TJ Maccarone, E Gallo, RP Fender, G Nelemans, DM Russell
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Opening angles, Lorentz factors and confinement of X-ray binary jets

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 367:4 (2006) 1432-1440

Authors:

JCA Miller-Jones, RP Fender, E Nakar
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High frequency observations of southern pulsars

ArXiv astro-ph/0604404 (2006)

Authors:

Simon Johnston, Aris Karastergiou, Kyle Willett

Abstract:

We present polarization data for 32 mainly southern pulsars at 8.4 GHz. The observations show that the polarization fraction is low in most pulsars at this frequency except for the young, energetic pulsars which continue to show polarization fractions in excess of 60 per cent. All the pulsars in the sample show evidence for conal emission with only one third also showing core emission. Many profiles are asymmetric, with either the leading or the trailing part of cone not detectable. Somewhat surprisingly, the asymmetric profiles tend to be more polarized than the symmetrical profiles. Little or no pulse narrowing is seen between 1 and 8.4 GHz. The spectral behaviour of the orthogonal polarization modes and radius to frequency mapping can likely account for much of the observational phenomenology. Highly polarized components may orginate from higher in the magnetosphere than unpolarized components.
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