Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..194v&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, Feb. 1991, p. 194-197. Research supported by NSERC
Astronomy and Astrophysics
Astronomy
4
Imagery, Supernova Remnants, Astronomical Photometry, Emission Spectra, Telescopes
Scientific paper
It is shown that the effects of crowding on images of Kepler's supernova remnant, that were obtained with the 3.6-m CFHT, can be greatly reduced by digitally subtracting a scaled continuum image from a narrow-band H-alpha + forbidden N II image. Attention is drawn to a narrow emission filament that extends for 27 arcsec along the western edge of the optical remnant.
Pritchet Christopher J.
van den Bergh Sidney
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