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The MASIV survey: spectroscopic identifications of compact radio sources
conference contribution
posted on 2023-05-24, 13:31 authored by Pursimo, T, Ojha, R, Jauncey, D, James LovellJames Lovell, Dutka, M, Bignall, H, Macquart, J-P, Rickett, B, Kedziora-Chudczer, L, Koay, JYInterstellar scintillation (ISS) has been shown to be primarily responsible for the short term intraday variability (IDV) exhibited by extragalactic sources at centimeter wavelengths (e.g. Bignall et al. 2006 and references therein). For a source to scintillate its angular size must be comparable to that of the first Fresnel zone (Narayan 1992) which implies microarcsecond angular sizes for screen distances of tens to hundreds of parsecs. This has the potential to probe within a few light months of the central black hole (Bignall et al. 2006). The aim of the Microarcsecond Scintillation-Induced Variability (MASIV) survey was to provide a catalogue of at least a hundred AGNs that vary on timescales of hours to days to provide the basis of detailed studies of the IDV population drawn from a well-defined sample.
History
Publication title
Proceedings of the International Astronomical Union: Symposium 304 - Multiwavelength AGN Surveys and StudiesVolume
9Editors
A Mickaelian and D SandersPagination
110-111ISSN
1743-9213Department/School
School of Natural SciencesPublisher
Cambridge University PressPlace of publication
United KingdomEvent title
International Astronomical Union Symposium 304: Multiwavelength AGN Surveys and StudiesEvent Venue
Yerevan, ArmeniaDate of Event (Start Date)
2013-10-07Date of Event (End Date)
2013-10-11Rights statement
Coyright 2014 International Astronomical UnionRepository Status
- Restricted