Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...209..315s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 209, no. 1-2, Jan. 1989, p. 315-326.
Astronomy and Astrophysics
Astrophysics
40
Extragalactic Radio Sources, Interstellar Radiation, Refractivity, Scintillation, Flux Density, Interstellar Matter, Light Curve, Low Frequencies, Statistical Analysis
Scientific paper
A statistical analysis is presented of the 408 MHz flux density time series of 39 extragalactic radio sources, to study the role of refractive interstellar scintillation in the decimeter wavelength variability of compact extragalactic radio sources. It is found that the product of the scintillation index and the variability timescale is systematically larger for sources at lower galactic latitudes. This variation is obscured by much larger random variations. Possible explanations of these results are discussed.
Fanti Roberto
Gregorini Loretta
Padrielli Lucia
Spangler Steve
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