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New Candidate Planetary Nebulae in the IPHAS Survey: the Case of Planetary Nebulae with ISM interaction

Published online by Cambridge University Press:  02 January 2013

Laurence Sabin ,
Albert A. Zijlstra ,
Christopher Wareing ,
Romano L. M. Corradi ,
Antonio Mampaso ,
Kerttu Viironen ,
Nicholas J. Wright  and
Quentin A. Parker
Laurence Sabin*
Affiliation:
Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK
Albert A. Zijlstra
Affiliation:
Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK
Christopher Wareing
Affiliation:
Department of Applied Mathematics, University of Leeds, Leeds, LS2 9JT, UK
Romano L. M. Corradi
Affiliation:
Instituto de Astrofisica de Canarias, Tenerife, Spain
Antonio Mampaso
Affiliation:
Instituto de Astrofisica de Canarias, Tenerife, Spain
Kerttu Viironen
Affiliation:
Instituto de Astrofisica de Canarias, Tenerife, Spain
Nicholas J. Wright
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA, 02138, USA
Quentin A. Parker
Affiliation:
Macquarie University/Anglo–Australian Observatory, Department of Physics, North Ryde, Sydney, NSW 2190
*
FCorresponding author. Email: [email protected]
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Abstract

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We present the results of the search for candidate Planetary Nebulae interacting with the interstellar medium (PN–ISM) in the framework of the INT Photometric Hα Survey (IPHAS) and located in the right ascension range 18–20 h. The detection capability of this new Northern survey, in terms of depth and imaging resolution, has allowed us to overcome the detection problem generally associated to the low surface brightness inherent to PNe-ISM. We discuss the detection of 21 IPHAS PN–ISM candidates. Thus, different stages of interaction were observed, implying various morphologies i.e. from the unaffected to totally disrupted shapes. The majority of the sources belong to the so-called WZO2 stage which main characteristic is a brightening of the nebula's shell in the direction of motion. The new findings are encouraging as they would be a first step into the reduction of the scarcity of observational data and they would provide new insights into the physical processes occurring in the rather evolved PNe.

Keywords

ISMplanetary nebulae: generalsurveys
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 27 , Issue 2 , 2010 , pp. 166 - 173
Copyright
Copyright © Astronomical Society of Australia 2010

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