Flicker of extragalactic radio sources and refractive interstellar scintillation

Details Flicker of extragalactic radio sources and refractive interstellar scintillation Flicker of extragalactic radio sources and refractive interstellar scintillation

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301l..53b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. L53-L56.

Astronomy and Astrophysics

Astrophysics

48

Extragalactic Radio Sources, Interstellar Matter, Refractivity, Scintillation, Centimeter Waves, Flicker, Milky Way Galaxy, Temporal Distribution

Scientific paper

Recent work has identified variability of flat-spectrum extragalactic radio sources at wavelengths of about 10 cm with rms amplitude of about 2-3 percent and time scale of days. It is shown that this 'flicker' is consistent with intensity fluctuations caused by refractive scintillation in an extended interstellar medium in the Galaxy. Further observation of flicker may allow the structure of suitable sources to be partially resolved on angular scales smaller than those probed by VLBI.

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