Observations of galaxies of high surface brightness at 102 MHz

Details Observations of galaxies of high surface brightness at 102 MHz Observations of galaxies of high surface brightness at 102 MHz

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sva....26..650a&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, Nov.-Dec. 1982, p. 1075-1080) Soviet Astronomy (ISSN 0038-5301), vol. 26, Nov.-Dec. 1982, p.

Astronomy and Astrophysics

Astronomy

1

Brightness Temperature, Flux Density, Galactic Radiation, Radio Spectra, Scintillation, Plasma Interactions, Radio Emission, Space Plasmas

Scientific paper

Forty-four of the galaxies of high surface brightness listed by Arakelyan have been observed at 102-MHz frequency with the Pushchino cophased antenna array by the interplanetary-scintillation method. Ten of these objects have been detected at flux-density levels above 1-2 Jy. Seven of them have scintillating components not greater than 1 arcsec across. The galaxy Ark 448 shows 100 percent scintillation; Ark 451, nearly 100 percent. Spectra are established for the scintillating components. Almost all the scintillators either are E or S0 galaxies, or appear highly compact at photographic wavelengths.

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