CCD mosaic images of the supernova remnant 3C 400.2

Details CCD mosaic images of the supernova remnant 3C 400.2 CCD mosaic images of the supernova remnant 3C 400.2

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...405..608w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 405, no. 2, p. 608-613.

Astronomy and Astrophysics

Astronomy

13

Astronomical Photometry, Charge Coupled Devices, Optical Emission Spectroscopy, Stellar Structure, Supernova Remnants, Forbidden Transitions, H Alpha Line, Planetary Nebulae, Radio Astronomy, Telescopes, X Ray Imagery

Scientific paper

We have constructed CCD mosaic images of the old Galactic supernova remnant 3C 400.2 in lines of H-alpha + forbidden N II, forbidden S II, and forbidden O III, plus a continuum band. These are the first CCD images covering the full extent of this remnant, and they reveal significantly more nebulosity than the deepest photographic plates. Comparison with radio and X-ray images indicates dramatically different morphology in the three regimes. The optical images both in H-alpha + forbidden N II and in forbidden S II show an almost complete, irregular shell of emission, with a diameter of about 16 arcmin, little over half that of the radio shell, while the X-ray structure is a centrally peaked ellipsoid. Approximate values for optical line fluxes are obtained; we estimate L(H-alpha) about 3 x 10 exp 35 ergs/s, roughly three times the X-ray luminosity. We also report a previously uncataloged planetary nebula southwest of 3C 400.2.

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