Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.270..893p&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 270, NO. 4/OCT15, P. 893, 1994
Astronomy and Astrophysics
Astronomy
3
Scientific paper
A discussion about the extragalactic nature of PP 31 is presented. This
object has been previously classified as a Galactic cometary nebula, but
a spectroscopic study reveals that it has a redshift of z = 0.0169. A
comparison of some line ratios with the Veilleux & Osterbrock
diagrams indicates that this object is an HII region galaxy.
Guichard José
Mujica Raúl
Parsamian Elma S.
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