Spatial orientation of planetary nebulae Virtual Observatory Resource

Authors
  1. Weidmann W.A.
  2. Diaz R.J.
  3. Published by
    CDS
Abstract

We analyze the spatial orientation of a homogeneous sample of 440 elongated Planetary Nebulae (PNe) in order to determine the orientation of their apparent major axis with respect to the Milky Way plane. We present some important geometrical and statistical considerations that have been overlooked by previous works on the subject. The global distribution of galactic position angles (GPA) of PNe is quantitatively not very different from a random distribution of orientations in the Galaxy. Nevertheless, we find that there is at least one region on the sky, toward the Galactic center, where a weak correlation may exist between the orientation of the major axis of some PNe and the Galactic equator, with an excess of axes with GPA~100{deg}. Therefore, we confirm that extrinsic phenomena (i.e., global Galactic magnetic fields, shell compression from motion relative to the Interstellar Medium) do not determine the morphology of PNe on most of the sky, with a possible exception toward the Galactic center.

Keywords
  1. planetary-nebulae
Bibliographic source Bibcode
2008PASP..120..380W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/120/380
IVOA Identifier IVOID
ivo://CDS.VizieR/J/PASP/120/380

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/120/380
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/120/380
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/120/380
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASP/120/380/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/PASP/120/380/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASP/120/380/table1?

History

2008-10-07T14:25:33Z
Resource record created
2008-10-07T14:25:33Z
Created
2022-09-13T16:05:09Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr