A deep radio continuum survey of the southern Galactic plane at 2.4 GHz

Details A deep radio continuum survey of the southern Galactic plane at 2.4 GHz A deep radio continuum survey of the southern Galactic plane at 2.4 GHz

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.277...36d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 277, Issue 1, pp. 36-52.

Astronomy and Astrophysics

Astronomy

97

Surveys, Supernova Remnants, Galaxy: Structure, Radio Continuum: General, Radio Continuum: Ism

Scientific paper

Total-power images are presented from a 2.4-GHz polarimetric radio continuum survey of the southern Galactic plane. The observations were performed with the Parkes 64-m radio telescope and cover the Galactic plane in the region 238 deg<=l<=365 deg, with a latitude range of --b--<=5 deg or greater, where l and b are the directions of longitude and latitude respectively. The resolution of the images is 10.4 arcmin and the rms noise is approximately 12 mJy beam area^-1, making this the most sensitive survey to date of the southern Milky Way at this frequency. The survey images reveal a large amount of structure and detail, including a considerable number of low surface brightness loops and spurs and an impressive loop complex in the region of Galactic longitude 342 deg. Over 30 possible supernova remnant (SNR) candidates appear in the survey, a number of which have angular diameters of the order of 10 deg. Faint radio emission is detected surrounding bright HII complexes and also from Hα nebulosities associated with the Gum nebula.

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