Study of compact radio sources using interplanetary scintillations at 111 MHz. Strong gigahertz-peaked spectrum sources

Details Study of compact radio sources using interplanetary scintillations at 111 MHz. Strong gigahertz-peaked spectrum sources Study of compact radio sources using interplanetary scintillations at 111 MHz. Strong gigahertz-peaked spectrum sources

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009arep...53..310t&link_type=abstract

Astronomy Reports, Volume 53, Issue 4, pp.310-318

Astronomy and Astrophysics

Astronomy

98.70.Dk, 95.85.Bh

Scientific paper

Observations of a sample of gigahertz-peaked spectrum sources have been carried out using the interplanetary-scintillation method. Scintillations were recorded in six of 53 observed sources; upper estimates for the flux density of the compact emission were obtained for the remaining sources. The contribution of a halo to the integrated flux at low frequencies is considered. Three sources with spectral indices close to -2.5 below the spectral cutoff have been found. The synchrotron self-absorption of emission in the studied sources is discussed.

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