A multi-wavelength investigation of newly discovered planetary nebulae in the Large Magellanic Cloud : central stars

Warren Reid

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    ![CDATA[Having completed my search for faint PNe in the LMC, including the outer 64 deg2 area not covered in the original UKST survey, I now have the most complete number of PNe within any galaxy with which to assess stellar parameters. I present preliminary estimates for planetary nebula central star temperatures for 688 LMC PNe using the excitation class parameter derived from emission lines in the nebula. These are then compared to a photoionisationmodel in order to evaluate the contribution of metallicity when determining stellar temperatures using only emission lines. I include measurements from my latest confirmatory spectroscopic observations which have yielded a further 110 new LMC PNe while confirming the 102 previously known PNe in the outer LMC. These observations, providing low and medium resolution spectra from 3650Å to 6900Å, have been added to my comparable data for PNe in the central 25deg2 of the LMC. The combined data were used to measure fluxes in preparation for a number of projects related to luminosity functions, chemical abundances, central star properties and LMC kinematics. Here I provide a preliminary look at the range of derived central star effective temperature estimates. I also show a correlation between the central star temperatures and the expansion velocity of the nebula.]]
    Original languageEnglish
    Title of host publication18th European White Dwarf Workshop: Proceedings of a Conference Held at the Pedagogical University of Cracow, Poland, 13-17 August 2012
    PublisherAstronomical Society of the Pacific
    Pages287-292
    Number of pages6
    ISBN (Print)9781583818206
    Publication statusPublished - 2013
    EventEuropean White Dwarf Workshop -
    Duration: 1 Jan 2013 → …

    Conference

    ConferenceEuropean White Dwarf Workshop
    Period1/01/13 → …

    Keywords

    • Magellanic Clouds
    • planetary nebulae

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