Hostname: page-component-7bb8b95d7b-s9k8s Total loading time: 0 Render date: 2024-09-20T15:43:00.318Z Has data issue: false hasContentIssue false
  • English
  • Français

The Correlation of PN Morphology and Parameters

Published online by Cambridge University Press:  26 May 2016

Arturo Manchado
Arturo Manchado*
Affiliation:
Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The morphology of a complete sample of 255 northern planetary nebulae (PNe) was studied and correlated with the nebular parameters. PNe were classified according to the following scheme: round (R, 25%), elliptical (E, 58% of the sample), and bipolar (B, 17%). Bipolars include the quadrupolar subsample. A subclass of pointsymmetric and multiple shell PNe was also found. Nine per cent of ellipticals and 46% of bipolars were found to be pointsymmetric. Thirty-five per cent of the round and 22% of the elliptical PNe were found to be multiple shell PNe (MSPNe). Galactic latitude was found to be different for each morphological class (|b| = 8°, 5° and 2° for types R, E, and B, respectively). Galactic height was also found to vary: 〈z〉 = 647, 276, and 100 pc for categories R, E, and B, respectively. Segregation according to the chemical abundances was also found, with helium abundances of 0.10, 0.12, and 0.14 and N/O of 0.21, 0.31, and 1.33 for types R, E, and B, respectively. Both galactic distribution and chemical abundances point to a different stellar population for each morphological class, the round and bipolar types being the result of low and high stellar mass progenitor evolution, respectively.

Type
Part VII: Nebular Morphology and Dynamics
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 431 - 438
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Acker, A., Ochsenbein, F., Stenholm, B., Tylenda, R., Marcout, J., Schohn, C. 1992, Strasbourg-ESO catalogue of Galactic planetary nebulae, ed. ESO Google Scholar
Balick, B. 1987, AJ 94, 671 CrossRefGoogle Scholar
Cahn, J.H., Kaler, J.B., & Stanghellini, L. 1992, AAS 94, 399 Google Scholar
Chu, Y.-H., Jacoby, G. H., & Arendt, R. 1987, ApJS 64, 529 CrossRefGoogle Scholar
Clegg, R.E.S. 1987, MNRAS, 229,31 CrossRefGoogle Scholar
Corradi, R. L. M. & Schwarz, H. E. 1995, A&A 293, 871 Google Scholar
Curtis, H.D. 1918, Pub. Lick Obs. 13, 57 Google Scholar
Frank, A., Balick, B., & Livio, M. 1996 ApJ, 471, L53 CrossRefGoogle Scholar
García-Segura, G., Langer, N., & Rózyczka, M. 1999 ApJ, 517, 767 CrossRefGoogle Scholar
García-Segura, G. & López, J.A. 2000 ApJ, 544, 336 CrossRefGoogle Scholar
García-Segura, G., Franco, J., López, J.A., Langer, N., & Rózyczka, M 2000, RMexAC, 9, p.210 Google Scholar
Górny, S.K., Stasinska, G., & Tylenda, R. 1997, A&A 318, 256 Google Scholar
Górny, S.K., Schwarz, H.E., Corradi, R.L.M., & Winckel, H. van 1999, A&AS 136, 145 Google Scholar
Greig, W. E., 1971, A&A 10, 161 Google Scholar
Guerrero, M.A. 1995, , Google Scholar
Kaler, J.B., Shaw, R.A., & Browning, L. 1997, PASP 109, 289 Google Scholar
Kingsburgh, R.L. & Barlow, M.J. 1994, MNRAS, 271, 257 Google Scholar
Kwok, S., Purton, C.R., & Fitzgerald, P.M. 1978, ApJ 219, 17 CrossRefGoogle Scholar
Manchado, A., Guerrero, M.A., Stanghellini, L., & Serra-Ricart, M. 1996, The IAC Morphological Catalog of Northern Galactic PNe, ed. IAC http://www.iac.es/nebula/nebula.html Google Scholar
Mellema, G. 1995, “Asymmetrical PN”, ed. Harpaz, , p. 229 Google Scholar
NASA Astrophysics Data System; http://adsabs.harvard.edu/.Google Scholar
Schwarz, H. E., Corradi, R. L. M., & Melnik, J. 1992, A&AS 96, 23 Google Scholar
Shaw, R.A., De La Peña, M.D., Katsanis, R.M., & Williams, R.E. 1998, Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. 145, 192 eds. Albrecht, R., Hook, R. N. and Bushouse, H. A. Google Scholar
Shaw, R.A., Stanghellini, L., Mutchler, M., Balick, B., & Blades, J.C. 2000, ApJ, 548, 727 Google Scholar
Soker, , 1997, ApJS, 112, 487 Google Scholar
Stanghellini, L., Corradi, R. L. M., & Schwarz, H. E., 1993 A&A 279, 521 Google Scholar
Steffen, M. & Schönberner, D. 2000, A&A, 357, 180 Google Scholar
Torres-Peimbert, S., & Peimbert, M. 1997, IAU Symp 180, p. 175, eds. Habing, H. J. and Lamers, H. J. G. L. M. CrossRefGoogle Scholar
Villaver, E., García-Segura, G., & Manchado, A. 2002, ApJ, 571, 1 Google Scholar
Zuckerman, B. & Aller, L. H. 1986, ApJ 301, 772 Google Scholar