103-MHz observations of the Andromeda Nebula

Details 103-MHz observations of the Andromeda Nebula 103-MHz observations of the Andromeda Nebula

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984azh....61..639a&link_type=abstract

(Astronomicheskii Zhurnal, vol. 61, July-Aug. 1984, p. 639-644) Soviet Astronomy (ISSN 0038-5301), vol. 28, July-Aug. 1984, p. 3

Astronomy and Astrophysics

Astronomy

1

Andromeda Galaxy, Astronomical Spectroscopy, Nebulae, Radio Astronomy, Supernova Remnants, A Stars, Astronomical Maps, Galactic Nuclei, Isophotes, Pulsars, Radiant Flux Density, Scintillation

Scientific paper

Observations of a field (6 x 4 deg) around M 31 at 103 MHz indicate 21 radio sources with interplanetary scintillations. A source 13 arcmin north of the center of the galaxy appears to be a Cas A-type remnant. Other scintillating sources close to M 31 could not be firmly identified as high-frequency 5C3 sources. A few of the scintillating sources appear to be short galactic pulsars projected onto M 31. The galaxy was mapped at 103 MHz with a resolution of 49 x 27 arcmin. It is argued on the basis of the observational data that if the halo present around M 31 has a diameter of 3 deg, the resultant flux density would be less than 27 Jy.

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