Microarcsecond scintillation-induced variability (MASIV) survey of the northern sky

D. L. Jauncey Australia Telescope National Facility, PO Box 76, Epping, NSW, AustraliaCorrespondence[email protected]

J. E. J. Lovell Australia Telescope National Facility, PO Box 76, Epping, NSW, Australia

C. Senkbeil School of Mathematics and Physics, University of Tasmania, GPO Box 252, Hobart, Australia

S. Shabala Cavendish Laboratory, Cambridge, CB3 OHE, UK

H. E. Bignall Joint Institute for VLBI in Europe, Postbus 2, 7990, AA, Dwingeloo, The Netherlands

T. Pursimo Nordic Optical Telescope, Sta Cruz de La Palma, E-38700, Tenerife, Spain

R. Ojha US Naval Observatory, 3450 Massachusetts Avenue NW, Washington DC, 20392, USA

M. Dutka US Naval Observatory, 3450 Massachusetts Avenue NW, Washington DC, 20392, USA

J.-P. Macquart NRAO Jansky Fellow, Department of Astronomy, California Institute of Technology, Pasadena, CA, 91125, USA

B. J. Rickett Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA, 92093, USA

L. Kedziora-Chudczer School of Physics, University of Sydney, NSW, 2006, Australia

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Abstract

We present the results of a large-scale 5-GHz Very Large Array (VLA) survey of the northern sky searching for sources that exhibit intraday variability (IDV). The observations were made over four epochs, each of 3 days in January, May and September 2002 and January 2003. The objective is to obtain a large sample of IDV sources in order to derive reliable statistics of the microarcsecond properties of the source population and the scattering properties of the interstellar medium.

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Acknowledgements

We are most grateful for the technical support provided by the NRAO staff in Socorro. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under a cooperative agreement by Associated Universities Inc. The Australia telescope national facility is funded by the Commonwealth of Australia for operation as a National facility managed by CSIRO.

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Microarcsecond scintillation-induced variability (MASIV) survey of the northern sky

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Microarcsecond scintillation-induced variability (MASIV) survey of the northern sky

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