Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3029d&link_type=abstract
ATNF proposal V369, Semester: April, 2010
Astronomy and Astrophysics
Astronomy
Pulsars, Neutron Stars, Lba
Scientific paper
The FERMI gamma-ray observatory has opened a sensitive new window on the high-energy emission of pulsars, detecting almost 50 pulsars in its first year of operation. The FERMI data promises to finally help facilitate an understanding of the pulsar emission process, yet much of the interpretation is hampered by uncertain pulsar distances and hence gamma-ray luminosities. VLBI astrometry provides a means to resolve the distance uncertainty for a select number of objects, and many of the FERMI pulsars lie far enough south that the LBA is the only facility available for astrometric analysis. Here we propose to measure parallax distances to three FERMI pulsars which are located in the far southern skies and possess apparently unusual luminosity characteristics. Removing the distance uncertainty for these objects will allow much more stringent analysis of their true emission mechanism.
Brisken Walter
Deller Adam
Johnston Simon
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