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New planetary nebulae with ISM interaction discovered with IPHAS

Published online by Cambridge University Press:  30 August 2012

Laurence Sabin ,
Romano L. M. Corradi ,
Quentin Parker ,
Antonio Mampaso  and
Albert Zijlstra
Laurence Sabin
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Ensenada, B.C, Mexico email: lsabin@astrosen.unam.mx
Romano L. M. Corradi
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38200 La Laguna, Tenerife, Spain
Quentin Parker
Affiliation:
Department of Physics and Astronomy, Macquarie University, NSW, 2109, Australia
Antonio Mampaso
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea s/n, 38200 La Laguna, Tenerife, Spain
Albert Zijlstra
Affiliation:
Jodrell Bank Centre for Astrophysics, University of Manchester, Manchester, M13 9PL, UK
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Abstract

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The low surface brightness usually associated with nebulae mixing with the ISM has long been a substantial obstacle in the observation and statistical study of these interactions. Thanks to the detection capability of the INT Photometric H-alpha Survey (IPHAS), in terms of sensitivity and imaging resolution, we were able to detect and select tens of examples of candidate Planetary Nebulae apparently at different stages of interaction with the interstellar medium (PNe-ISM hereafter) following the Wareing et al. (2007) classification. A spectroscopic investigation was conducted with the San Pedro Martir 2.1m telescope (SPM) in Mexico and we present the first results involving a proper classification and analysis of our candidates. The main difficulty is visually separating PNe-ISM from other faint asymmetric nebulosities such as old HII regions, SNRs and general diffuse H-alpha structures. This investigation is a first step in a more comprehensive study of PNe-ISM as more candidates are uncovered by the IPHAS team.

Keywords

ISM: generalplanetary nebulae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 492 - 493
Copyright
Copyright © International Astronomical Union 2012

References

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