Snapshot VLBI mapping at 92 CM of 16 low frequency variable extragalactic sources

Details Snapshot VLBI mapping at 92 CM of 16 low frequency variable extragalactic sources Snapshot VLBI mapping at 92 CM of 16 low frequency variable extragalactic sources

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.7509c&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #75.09; Bulletin of the American Astronomical Society, Vol. 25, p.1410

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of VLBI mapping at 92 cm of 16 of the most "active" sources from the Arecibo -- NRAO low frequency variability monitoring program. Typical resolution of the maps is a few centiarcseconds, and typical dynamical range is (50 - 100):1. Following is a list of the sources: \begin{tabular}{llll} 0116+319 & 0735+178 & 1422+202 & 2050+363 0235+164 & 0851+202 & 1611+343 & 2145+067 0333+321 & 1055+018 & 1633+382 & 2230+114 0723-008 & 1117+146 & 1901+319 & 2251+158 We note that the data show clear evidence of significant scattering at baselines of 2 -- 6 Mlambda and longer. Examination of structural information will enable us to: study the dependence of variability on source size choose the most relevant sources for further studies at different frequencies and with higher dynamical range. JEC and AST acknowledge, with thanks, the REU Summer Student program support. We are grateful for the support of the European and US VLBI networks. NAIC is operated by Cornell University under a cooperative agreement with the National Science Foundation.

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