New DSH planetary nebulae and candidates from optical and infrared surveys

Matthias Kronberger, G. H. Jacoby, P. Eigenthaler, D. Frew, D. Harmer, Q. A. Parker, D. Patchick, W. Reid & J. Schedler

Deep Sky Hunters, Australia

During the last decade, more than one hundred true, probable and possible planetary nebulae (PNe) have been identified by amateur astronomers within the framework of the Deep Sky Hunters (DSH) project by scanning the Digitized Sky Survey (DSS) and other publicly available digital resources (SDSS, GALEX, WISE) [1-3]. In this contribution, we present about 150 previously unknown objects that were discovered during the past two years and are expected to be possible PNe based on their morphologies and spectral properties. The majority of candidates are located within the boundaries of the SHS [4] and IPHAS [5] H-alpha surveys and were discovered by combining infrared data from the WISE satellite with optical data from the IPHAS, SHS and DSS surveys, and UV data from the GALEX mission. Object sizes found range from almost stellar to about 100 arcseconds in the optical. [1] G. H. Jacoby et al., PASA 27, 156 (2010) [2] M. Kronberger et al., IAUS 283, 414 (2012) [3] M. Kronberger et al., APN VI Conf. Proc, 48 (2014) [4] Q. A. Parker et al., MNRAS 362, 689 (2005) [5] J. Drew et al., MNRAS 362, 753 (2005)

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