SIMBAD references

1995A&A...301...33R - Astronomy and Astrophysics, volume 301, 33-40 (1995/9-1)

Flicker of southern extragalactic radio sources at 1.42 GHz.


Abstract (from CDS):

Variability of southern extragalactic radio sources on time scales of 1-10 days has been studied at 1.42GHz using a 30-m telescope with a declination range from -9deg to -90deg. Measurements of 18 sources were made in 11 successive nights in each of two observing sessions. Most of the flat-spectrum sources vary a few percent on time scales mainly in the range 2-4 days, a behaviour that could be originated, or at least strongly influenced, by refractive processes in the interstellar medium. A few sources displayed a higher level of activity with rms fluctuations of ∼6%. This latter variability could be partially intrinsic to the sources.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects - quasars - galaxies: active - radio continuum: galaxis

CDS comments: 0915-115 = 3C 218

Simbad objects: 18

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