New planetary nebulae with ISM interaction discovered with IPHAS

Laurence Sabin*, Romano L M Corradi, Quentin Parker, Antonio Mampaso, Albert Zijlstra

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    1 Citation (Scopus)


    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.

    Original languageEnglish
    Title of host publicationPlanetary Nebulae: An Eye to the Future
    EditorsArturo Manchado, Letizia Stanghellini, Detlef Schönberner
    Number of pages2
    Publication statusPublished - Jul 2011

    Publication series

    NameProceedings of the International Astronomical Union
    ISSN (Print)17439213
    ISSN (Electronic)17439221


    • ISM: general
    • planetary nebulae: general


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