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Kn 26: a textbook case hourglass planetary nebula with a twist

Published online by Cambridge University Press:  30 August 2012

Martín A. Guerrero ,
Roberto Vázquez ,
Luis F. Miranda  and
Gerardo Ramos-Larios
Martín A. Guerrero
Affiliation:
Instituto de Astrofísica de Andalucía, IAA-CSIC, Spain email: [email protected]
Roberto Vázquez
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Ensenada, Mexico email: [email protected]
Luis F. Miranda
Affiliation:
Departamento de Fisica Aplicada, Universidade de Vigo, Vigo, Spain Consejo Superior de Investigaciones Científicas, Madrid, Spain email: [email protected]
Gerardo Ramos-Larios
Affiliation:
Instituto de Astronomía y Meteorología, Jalisco, Mexico email: [email protected]
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Abstract

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Kn 26 is a recently identified planetary nebula (PN). To confirm its nature and study its spatio-kinematical structure, we have obtained high spatial-resolution optical and near-IR narrowband images, high-dispersion long-slit echelle spectra, and intermediate-resolution spectroscopic observations. The new data confirm the PN nature of Kn 26 and reveal features typical of bipolar PNe: hourglass morphology, H2 emission, and nitrogen enrichment. A detailed analysis of its morphology and kinematics, however, suggests the presence of one additional pair of bipolar lobes that would make Kn 26 a new member of the class of quadrupolar PNe.

Keywords

planetary nebulae: individual (Kn 26)infrared: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 376 - 377
Copyright
Copyright © International Astronomical Union 2012

References

Corradi, R. L. M. & Schwarz, H. E. 1995, A&A, 293, 871.Google Scholar
Eracleous, M., Wade, R. A., Mateen, M., & Lanning, H. H. 2002, PASP, 114, 207.CrossRefGoogle Scholar
Jacoby, G. H., Kronberger, M., Patchick, D., Teutsch, P., Saloranta, J., Howell, M., Crisp, R., Riddle, D., Acker, A., Frew, D. J., & Parker, Q. A. 2010, PASA, 27, 156.CrossRefGoogle Scholar
Lanning, H. H. & Meakes, M. 2000, PASP, 112, 251.CrossRefGoogle Scholar
Manchado, A., Stanghellini, L., & Guerrero, M. A. 1996, ApJ, 466, L95 CrossRefGoogle Scholar
Sahai, R. 2000, ApJ, 537, L43 CrossRefGoogle Scholar
Steffen, W., Koning, N., Wenger, S., Morisset, C., & Magnor, M. 2011, IEEE Transactions on Visualization and Computer Graphics, 17, 454 CrossRefGoogle Scholar