30 DOR B - A supernova remnant in a star formation region

Details 30 DOR B - A supernova remnant in a star formation region 30 DOR B - A supernova remnant in a star formation region

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103.1545c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, no. 5, May 1992, p. 1545-1551, 1709-1714.

Astronomy and Astrophysics

Astronomy

30

H Ii Regions, H Lines, Star Formation, Supernova Remnants, Astronomical Spectroscopy, Dark Matter, Fabry-Perot Spectrometers, Radio Emission

Scientific paper

The supernova remnant 30 Dor B is embedded in an H II region around the OB association LH 99, and has been suggested to be a Crab-type remnant. To determine the spatial extent and kinematic properties of this supernova remnant, long-slit echelle observations were obtained in the H-alpha and forbidden N II lines, along with imaging Fabry-Perot observations in the H-alpha line. It is found that 30 Dor B is partially obscured by a dark cloud with which the supernova remnant also interacts. The size of 30 Dor B is much larger than previously thought, making it much older than the Crab Nebula. If the progenitor of the supernova was formed coevally with LH 99, then it would have been more massive than the O3 members of the OB association.

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