University of Hertfordshire

By the same authors

Planetary Nebulae in the UWISH2 Galactic Plane survey

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

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Original languageEnglish
Title of host publicationProceedings of the 323rd Symposium of the International Astronomical Union
EditorsXiaowei Liu, Letizia Stangellini, Amanda Karakas
Place of PublicationCambridge
PublisherCambridge University Press
Number of pages4
ISBN (Print)9781107169913
Publication statusPublished - 30 Sep 2017
EventIAUS 323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution - Beijing, China
Duration: 10 Oct 201614 Oct 2016
Conference number: IAUS 323:

Publication series

NameIAU Symposium Series


ConferenceIAUS 323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution
Internet address


UWISH2 is the first unbiassed imaging survey of v$=1-0$~S(1) molecular hydrogen emission ($\lambda=2.122~\mu$m) in the northern Galactic Plane. Here we discuss 284 extended emission line objects which we consider to be candidate planetary or pre-planetary nebulae. Some are clearly associated with known PN, but the majority (60\%) have no previous detection. We have classified the objects according to morphology and find 53\% are bipolar with half of these being new detections. The remaining objects are mostly elliptical/round (35\%), fainter than the median sample flux ($4.4\times 10^{-17}$~W~m$^{-2}$) and previously undetected (74\%).


Timothy Gledhill, D. Froebrich, 'Planetary Nebulae in the UWISH2 Galactic Plane survey', paper presented at the AU Symposium 323, Planetary nebulae: Multi-wavelength probes of stellar and galactic evolution. Beijing, China, October 10-14, 2016.

ID: 10913676