No shell around 3C 58
VLA observations were made in a search for radio emission outside the Crablike remnant 3C 58, where the supernova ejecta might be expected to be interacting with the interstellar medium. No evidence for any such emission was found; the 3sigma surface-brightness limit at 1446 MHz is Sigma less than 1.1 micro-Jy/sq arcsec = 0.047 x 10 to the -20th W/sq m Hz sr. The interaction might be taking place at the edge of the observed remnant itself; however, a review of the morphological and spectral evidence for such interaction leads to the conclusion that a normal, steep-spectrum, limb-brightened shell is not an appreciable component of the observed emission. 30 references.
- Research Organization:
- National Radio Astronomy Observatory, Charlottesville, VA; Michigan Univ., Ann Arbor
- OSTI ID:
- 5684637
- Journal Information:
- Astron. J.; (United States), Vol. 90
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUPERNOVA REMNANTS
MORPHOLOGY
CRAB NEBULA
INTERACTIONS
MASS TRANSFER
RADIOWAVE RADIATION
STAR EVOLUTION
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
NEBULAE
RADIATIONS
640103* - Astrophysics & Cosmology- Quasi-Stellar
Radio
& X-Ray Sources- (-1987)
GENERAL PHYSICS
SUPERNOVA REMNANTS
MORPHOLOGY
CRAB NEBULA
INTERACTIONS
MASS TRANSFER
RADIOWAVE RADIATION
STAR EVOLUTION
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
NEBULAE
RADIATIONS
640103* - Astrophysics & Cosmology- Quasi-Stellar
Radio
& X-Ray Sources- (-1987)