Is G292.0+1.8 a Crab-like supernova remnant

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Abundance, Astronomical Spectroscopy, Nebulae, Radial Velocity, Supernova Remnants, Velocity Distribution, Data Acquisition, Schmidt Telescopes, Velocity Measurement

Scientific paper

New spectroscopic observations confirm the striking abundance anomalies which Goss et al. (1979) have recently discovered in the faint optical remnant of G292.0+1.8. Radial-velocity measurements at 20 points in the nebula lie in the range -400 to +1100 km/s. The distribution of the observed velocities on the sky does not fit a simple, uniformly expanding shell model. A rediscussion of all available evidence weakens the case for the assumption that G292.0+1.8 is a Crab-like remnant.

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