The LOFAR Multifrequency Snapshot Sky Survey (MSSS): Description and First Results

Details The LOFAR Multifrequency Snapshot Sky Survey (MSSS): Description and First Results The LOFAR Multifrequency Snapshot Sky Survey (MSSS): Description and First Results

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21921402h&link_type=abstract

American Astronomical Society, AAS Meeting #219, #214.02

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One of the primary scientific applications of LOFAR is to produce high-quality images of large areas of the low-frequency radio sky. Much of the required data processing will be performed in an automated fashion. The calibration of LOFAR imaging data will strongly benefit from an initial broadband northern sky catalog. Producing this catalog is the primary goal of the LOFAR Multifrequency Snapshot Sky Survey (MSSS) that is planned to begin in the autumn of 2011. Within the range between 30 and 180 MHz, MSSS will probe the low-frequency sky at a sensitivity of order 10 mJy/beam, and angular resolution of 1-2 arcmin or better. It will thus dramatically expand the frequency range sampled in high-resolution radio surveys, and, crucially, provide spectral information about the detected sources. Using LOFAR's unique multi-beaming mode, the survey will only require a rather modest investment in observing time. In this contribution, I will motivate and describe the survey design, including an overview of aspects that provide additional value beyond the development of the MSSS catalog itself. I will also present a status update, and demonstrate early results from the survey.

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