Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...133l...4r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 133, no. 1, April 1984, p. L4-L7.
Astronomy and Astrophysics
Astronomy
37
Astronomical Maps, Radio Sources (Astronomy), Stellar Evolution, Supernova Remnants, Centimeter Waves, Crab Nebula, Linear Polarization, Radiant Flux Density, Radio Spectra
Scientific paper
As is true for most filled centers, the two objects have no clear boundaries; this makes estimates of the dimensions, distances, and ages somewhat ambiguous. Even though the derived quantities are still not accurate, it is believed that the two objects may provide promising clues in investigations of the late stage of evolution of Crab-like SNRs. In both objects, the centrally peaked sources are seen as suggesting some energetic sources at the centers. It is pointed out that the central region of G24.7+0.6 is not resolved in the observations and appears to be associated with a plateaulike or jetlike extension toward the west. The objects are linearly polarized, indicating their nonthermal origin.
Furst Eric
Reich Wolfgang
Sofue Yoshiaki
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