The Deep Interferometric VSOP--Arecibo Survey (DIVAS)

Details The Deep Interferometric VSOP--Arecibo Survey (DIVAS) The Deep Interferometric VSOP--Arecibo Survey (DIVAS)

Publishing date

Aug 2009

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..402..148e&link_type=abstract

Journals

Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies ASP Conference Series, Vol. 402, proceedings o

Science

Astronomy and Astrophysics

Field

Astrophysics

Type

Scientific paper

Abstract

The Deep Interferometric VSOP-Arecibo Survey (DIVAS) program used space VLBI observations of a faint sample of flat-spectrum sources made with the HALCA satellite and the Arecibo telescope to provide the highest possible space VLBI sensitivity at 5 GHz. The main aim of the survey is to compare statistical results on the source structures (e.g., brightness temperatures, sizes, visibilities) with results from the VLBI Space Observatory Programme (VSOP) Survey, to determine whether there are systematic differences in the compact structures of sources selected from samples with limiting flux densities differing by over an order of magnitude.

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