Monitoring of Active Blazars using DSN Interferometer

Details Monitoring of Active Blazars using DSN Interferometer Monitoring of Active Blazars using DSN Interferometer

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21642004m&link_type=abstract

American Astronomical Society, AAS Meeting #216, #420.04; Bulletin of the American Astronomical Society, Vol. 41, p.832

Astronomy and Astrophysics

Astronomy

Scientific paper

The Large Area Telescope (LAT) instrument on-board the Fermi Gamma-ray Space Telescope, formerly GLAST, has already provided unprecedented views of the gamma-ray sky. The LAT instrument with its high sensitivity, large field of view, and excellent energy and position resolution, offers a unique window for identification and study of high energy processes in blazars. To maximize the science return from the LAT, dedicated and robust multi-wavelength (MW) monitoring campaigns are crucial for identification and especially for understanding the underlying emission mechanisms of these sources.
As part of an effort to demonstrate the capabilities of a sensitive radio interferometer, we have carried out a number of pilot observations of a sample of calibrators with a short baseline interferometer operating simultaneously at 2 and 8 GHz using a pair of large DSN antennas in Goldstone, CA.
We present the results of these pilot observations, which demonstrate the capability of such a short baseline interferometer to carry out routine monitoring of active blazars, providing complementary information to dedicated monitoring programs using single dish antennas currently in operation. We also discuss the potential of a dedicated monitoring program using two 34-m antennas operated by a K-12 student-run program in Goldstone.

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