Astronomy and Astrophysics – Astronomy
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.280..252d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 280, Issue 1, pp. 252-266.
Astronomy and Astrophysics
Astronomy
34
Polarization, Ism: Bubbles, Ism: Individual: Gum Nebula, Ism: Individual: G 240.9-0.9, Ism: Individual: Vela Snr, Supernova Remnants
Scientific paper
Sensitive, polarimetric observations are presented for the region of the Galactic plane 276 deg>=l>=238 deg, with a latitude coverage of +5 deg>=b>=-8 deg over most of this range. These observations were made using the Parkes 64-m radio telescope, at a frequency of 2.4 GHz. Both total-power and polarized emission are detected from the Vela supernova remnant, over an area exceeding 8 deg in diameter. Additionally, a number of features are identified beyond the shell of Vela, which correspond with what appear to be ejecta accelerated by the supernova explosion. Radio emission containing a significant polarized component is detected from the Gum nebula. To account for our observations, both a thermal and a non-thermal component of this emission are therefore required. The discrete SNR G 240.9-0.9 is reinterpreted as a section of this emission from the Gum nebula.
Duncan Roy A.
Haynes Raymond F.
Jones Kenneth L.
Stewart Ron T.
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