Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1821t&link_type=abstract
ATNF proposal C1975, Semester: October, 2008
Astronomy and Astrophysics
Astronomy
Galactic, Atca
Scientific paper
This project proposes to systematic search for radio emission from a small number of Be/X-ray transients with well-known orbits. These Be/X-ray transients undergo regular strong X-ray outbursts close periastron. It has been suggested that an accretion disc forms around the neutron star during these outbursts. Based on the analogy with microquasars we expect that a radio jet will form during the outburst, but with a delay of a couple of weeks relative to the X-ray outbursts, and we plan our observations accordingly. The detection of a radio jet and the measurement of the time delay between the X-ray outburst and the radio emission will provide constraints on the formation of jets from accretion discs and the viscous evolution of the disc. We request a total of 20 hours of observations with the ATCA in the 8 and 4.8 GHz bands divided into 1-hour blocks to be spread over the period October 08 - March 09 according to the schedule presented in the proposal.
Pestalozzi Michele
Torkelsson Ulf
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