The extragalactic nature of PP 31

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...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 1994-10, Vol.270 (4), p.893-896
Hauptverfasser:	Parsamian, Elma S., Guichard, José, Mújica, Raúl
Format:	Artikel
Sprache:	eng
Schlagworte:	galaxies: distances and redshifts galaxies: individual: PP 31 galaxies: ISM
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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 H II region galaxy.
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/270.4.893