IDV sources as ICRF sources: viability and benefits

Details IDV sources as ICRF sources: viability and benefits IDV sources as ICRF sources: viability and benefits

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13q.613o&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

International Celestial Reference System

Scientific paper

Radio sources that exhibit rapid variability in their light curves as a result of radio wave propagation through turbulent electron density fluctuations in the interstellar medium are often among the most compact sources in the sky. In particular the most variable weak sources might be the most point-like and thus some of the best candidates for densification of the ICRF and consequent improvement in its accuracy. Further the advent of the MkV VLBI system will make use of weaker sources easier. We will discuss the viability of this idea review existing lists of potential candidates and state the benefits that might flow from this approach.

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