G93.3 + 6.9 - A highly polarized supernova remnant

Details G93.3 + 6.9 - A highly polarized supernova remnant G93.3 + 6.9 - A highly polarized supernova remnant

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....92...57h&link_type=abstract

Astronomy and Astrophysics, vol. 92, no. 1-2, Dec. 1980, p. 57-62.

Astronomy and Astrophysics

Astronomy

16

Linear Polarization, Radio Sources (Astronomy), Supernova Remnants, Radiant Flux Density, Spectral Emission

Scientific paper

The paper presents total power and linear polarization maps of the SNR G93.3 + 6.9 at 1720 MHz and 2700 MHz with resolutions of 7.6 arcmin and 4.4 arcmin. The source appears to show certain characteristics of both shell-type and Crab-like remnants. Extremely high polarization percentages are found on the object, reaching beyond 50% at 2700 MHz. Information on rotation measure and depolarization percentage is given and a spectral index of 0.56 is deduced. From the Sigma-D-z relations a most probable distance in the range 2-5 kpc is derived with corresponding linear diameters of 15-35 pc. The SNR is probably rather young, 1000-3000 yr being the most likely age range.

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