Computer Science
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop.1089g&link_type=abstract
ATNF proposal C1728, Semester: October, 2007
Computer Science
Galactic, Atca
Scientific paper
X-ray sources in the Galactic plane represent a variety of exotic populations. Surprisingly, most bright low-latitude X-ray sources are still unidentified, but presumably correspond to some mixed population of young stars, high mass X-ray binaries, magnetars, pulsars, and supernova remnants. To derive the birth-rates, lifetimes and distributions of these relatively rare populations, we have obtained a substantial allocation of time with the Chandra X-ray Observatory, with which we are carrying out short observations of all the unidentified objects in the 60% of the Galactic disk covered by the ASCA Galactic Plane Survey. These observations are providing arcsecond localisations for each source, which then enable the archival searches and multi-wavelength follow-up that are the key to identification. Here we propose for short multi-frequency ATCA observations of unidentified ASCA sources with bright, compact, radio counterparts. The resulting information on fluxes, spectral indices, variability and polarisation will provide critical information on the underlying nature of each object. When the overall survey is completed, these identifications will provide a new understanding of the distribution, birth rate and evolution of Galactic X-ray sources, with a particular focus on the progenitors and products of core-collapse.
Anderson Gemma
Benjamin Bob
Brogan Crystal
Drew Janet
Gaensler Bryan
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