Browsing by Author "Frew, David J."

Now showing items 1-5 of 5

    • A barium central star binary in the Type-I diamond ring planetary nebula Abell 70 

      Miszalski, B.; M. J. Boffin, H.; Frew, David J.; Acker, A.; Köppen, J.; F. J. Moffat, A.; A. Parker, Q. (2012-01)
      Abell 70 (PN G038.1-25.4, hereafter A 70) is a planetary nebula (PN) known for its diamond ring appearance due a superposition with a background galaxy. The previously unstudied central star is found to be a binary consisting ...

    • The binary fraction of planetary nebula central stars - III. the promise of VPHAS+ 

      Barker, Helen; Zijlstra, Albert; Marco, Orsola De; Frew, David J.; Drew, J. E.; Corradi, R. L. M.; Eislöffel, Jochen; Parker, Quentin A. (2018-04-21)
      The majority of planetary nebulae (PNe) are not spherical, and current single-star models cannot adequately explain all the morphologies we observe. This has led to the Binary Hypothesis, which states that PNe are ...

    • PHR 1315-6555: a bipolar planetary nebula in the compact Hyades-age open cluster ESO 96-SC04 

      Parker, Quentin A.; Frew, David J.; Miszalski, Brent; Kovacevic, Anna V.; Frinchaboy, Peter M.; Dobbie, Paul D.; Koeppen, Joachim (2011-05)
      We present a detailed study of a bipolar, possible Type I planetary nebula (PN), PHR 1315-6555 (PN G305.3-03.1), which was discovered as part of the Macquarie/AAO/Strasbourg H alpha planetary nebula project (MASH), and ...

    • Planetary Nebulae towards the Galactic bulge - I. [O III] fluxes 

      Kovacevic, Anna V.; Parker, Quentin A.; Jacoby, George H.; Sharp, Rob; Miszalski, Brent; Frew, David J. (2011-06)
      We present [O III] lambda 5007 fluxes and angular diametres for 435 Planetary Nebulae (PNe) in the central 10 degrees x 10 degrees region towards the Galactic bulge. Our sample is taken from the new discoveries of the MASH ...

    • The VST photometric hα survey of the Southern Galactic Plane and Bulge (VPHAS+) 

      Drew, J.E.; González-Solares, Eduardo A.; Greimel, Robert; Irwin, M.J.; Küpcü Yoldaş, A.; Lewis, J.R.; Barentsen, Geert; Eislöffel, Jochen; Farnhill, Hywel J.; Martin, Bill; Walton, Nicholas A.; Mohr-Smith, M.; Raddi, Roberto; Sale, Stuart E.; Wright, Nicholas J.; Groot, Paul J.; Barlow, Michael J.; Corradi, R.L.M.; Drake, Jeremy J.; Fabregat, Juan; Frew, David J.; Gänsicke, Boris T.; Knigge, Christian; Mampaso, Antonio; Morris, R.A.H.; Naylor, Tim J.; Parker, Quentin A.; Phillipps, Steven; Ruhland, Christine; Steeghs, Danny T H; Unruh, Y.C.; Vink, Jorick S.; Wesson, Roger; Zijlstra, Albert (2014-05-21)
      The VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Hα at ~1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5o ...