The San Pedro Mártir Planetary Nebula Kinematic Catalogue: Extragalactic Planetary Nebulae

We present kinematic data for 211 bright planetary nebulae in eleven Local Group galaxies: M31 (137 PNe), M32 (13), M33 (33), Fornax (1), Sagittarius (3), NGC 147 (2), NGC 185 (5), NGC 205 (9), NGC 6822 (5), Leo A (1), and Sextans A (1). The data were acquired at the Observatorio Astronómico Nacional in the Sierra de San Pedro Mártir using the 2.1 m telescope and the Manchester Echelle Spectrometer in the light of [O III]λ5007 at a resolution of 11 kms-1. A few objects were observed in Hα. The internal kinematics of bright planetary nebulae do not depend strongly upon the metallicity or age of their progenitor stellar populations, though small systematic differences exist. The nebular kinematics and Hβ luminosity require that the nebular shells be accelerated during the early evolution of their central stars. Thus, kinematics provides an additional argument favoring similar stellar progenitors for bright planetary nebulae in all galaxies.

Detalhes bibliográficos

Principais autores:	Richer,M. G., López,J. A., Díaz-Méndez,E., Riesgo,H., Báez,S.-H., García-Díaz,Ma.-T., Meaburn,J., Clark,D. M., Calderón Olvera,R. M., López Soto,G., Toledano Rebolo,O
Formato:	Digital revista
Idioma:	English
Publicado em:	Universidad Nacional Autónoma de México, Instituto de Astronomía 2010
Acesso em linha:	http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012010000200001
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