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High-Resolution Spectroscopy of the Planetary Nebulae PM 1–242, PM 1–318 and PM 1–322

Published online by Cambridge University Press:  02 January 2013

L. F. Miranda ,
R. Vázquez ,
M. A. Guerrero ,
C. B. Pereira  and
E. Iñiguez-Garín
L. F. Miranda*
Affiliation:
Instituto de Astrofísica de Andalucía – CSIC, Granada, Spain Facultade de Ciencias, Universidade de Vigo, Vigo, Spain
R. Vázquez
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Ensenada, Mexico
M. A. Guerrero
Affiliation:
Instituto de Astrofísica de Andalucía – CSIC, Granada, Spain
C. B. Pereira
Affiliation:
Observatorio Nacional – MCT, Rio de Janeiro, Brazil
E. Iñiguez-Garín
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Ensenada, Mexico Facultad de Ciencias, Universidad Autónoma de Baja California, Ensenada, Mexico
*
FCorresponding author. Email: [email protected]
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Abstract

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We have recently confirmed the planetary nebula (PN) nature of PM 1–242, PM 1–318 and PM 1–322. Here we present high-resolution long-slit spectra of these three PNe in order to analyze their internal kinematics and to investigate their physical structure. PM 1–242 is a tilted ring and not an elliptical PN as suggested by direct images. The object is probably related to ring-like PNe and shows an unusual pointsymmetric brightness distribution in the ring. PM 1–318 is a pole-on elliptical PN, instead of a circular one as suggested by direct images. PM 1–322 is spatially unresolved and its spectrum shows large differences between the forbidden lines and Hα profiles, with the latter showing a double-peaked profile and relatively extended wings (FWZI ~325 km s−1). These properties are found in other PNe that are suspected to host a symbiotic central star.

Keywords

circumstellar matterISM: jets and outflowsplanetary nebulae: individual (PM 1-242PM 1-318PM 1-322)
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 27 , Issue 2 , 2010 , pp. 199 - 202
Copyright
Copyright © Astronomical Society of Australia 2010

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