The Carina supernova remnant

Astronomy and Astrophysics – Astronomy

Scientific paper

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Radio Sources (Astronomy), Stellar Spectra, Supernova Remnants, X Ray Sources, Astronomical Photography, Astronomical Spectroscopy, H Alpha Line, H Beta Line, Nebulae, Nonthermal Radiation

Scientific paper

It has been suggested that the nonthermal radio source G286.8-0.5 is a supernova remnant in front of the Carina Nebula (NGC 3372), a view supported by the detection of X-ray emission from the region. Observations presented here show that the H-alpha and H-beta lines are composed of two components, due to high- and low-velocity gas. The broad component of H-alpha has a FWHM of 14.3 A corresponding to 655 km/s, while H-beta has a width of 10.0 A (620 km/s). These high velocities are consistent with the supernova remnant hypothesis.

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