Finding Extremely Compact Sources Using the ASKAP VAST Survey
| dc.contributor.author | Bignall, Hayley E. | |
| dc.contributor.author | Jauncey, David L. | |
| dc.contributor.author | Lovell, James E. J. | |
| dc.contributor.author | Ojha, Roopesh | |
| dc.contributor.author | Reynolds, Cormac | |
| dc.date.accessioned | 2020-04-30T17:46:51Z | |
| dc.date.available | 2020-04-30T17:46:51Z | |
| dc.date.issued | 2010 | |
| dc.description | IVS 2010 General Meeting Proceedings | en_US |
| dc.description.abstract | VLBI observations of intraday variable (IDV) quasars found in the MASIV (Micro-Arcsecond Scintillation-Induced Variability) 5 GHz VLA Survey of 500 flat-spectrum sources in the northern sky have shown that these sources are extremely compact, often unresolved, on milliarcsecond scales, and more core-dominated than their non-IDV counterparts. VAST: an ASKAP Survey for Variables and Slow Transients, proposes to observe 10,000 square degrees of southern sky daily for 2 years in the VAST-Wide survey component. This is expected to reveal of order 30,000 compact sources brighter than 10 mJy showing refractive interstellar scintillation (the cause of centimeter-wavelength IDV) at the survey frequency of about 1.4 GHz. Many of these sources may be suitable astrometric calibrators for VLBI at higher frequencies. | en_US |
| dc.description.uri | https://ivscc.gsfc.nasa.gov/publications/gm2010/bignall.pdf | en_US |
| dc.format.extent | 5 pages | en_US |
| dc.genre | conference papers and proceedings | en_US |
| dc.identifier | doi:10.13016/m2nojq-mcgx | |
| dc.identifier.citation | Bignall, Hayley E.; Jauncey, David L.; Lovell, James E. J.; Ojha, Roopesh; Reynolds, Cormac; Finding Extremely Compact Sources Using the ASKAP VAST Survey; IVS 2010 General Meeting Proceedings, p.325–329 (2010); https://ivscc.gsfc.nasa.gov/publications/gm2010/bignall.pdf | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/18386 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IVS Publications | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Finding Extremely Compact Sources Using the ASKAP VAST Survey | en_US |
| dc.type | Text | en_US |