Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21923717w&link_type=abstract
American Astronomical Society, AAS Meeting #219, #237.17
Astronomy and Astrophysics
Astronomy
Scientific paper
We are currently undertaking a deep survey for radio pulsars in the Galactic Center (GC) using the DSS28 telescope at the Goldstone Deep Space Communications Complex. The detection of a pulsar in the inner parsecs of the GC would provide an excellent probe of the GC environment and the central supermassive black hole. Despite the detection of over 1800 pulsars in the Galaxy so far, none have been found within 10' of the GC. This is mainly due to the large pulse broadening times ( 2000ν-4 seconds for a pulsar in the GC) caused by the scattering of radio waves. The 34 meter DSS28 dish has been outfitted with a wide bandwidth receiver capable of providing 8 GHz of instantaneous bandwidth distributed within a frequency range of 2-14 GHz. The high observing frequencies will help mitigate the pulse broadening due to scattering and the high bandwidth will prove useful in both periodicity and single pulse searches. Overall, the DSS28 telescope provides a unique opportunity for a multi-month directed search for radio pulsars in the GC at high frequencies.
Deneva Julia
Majid Walid
Wharton Robert
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