UNSW Canberra

Publication Search Results

Now showing 1 - 7 of 7
  • (2006) Lees, Brian; Van Niel, Kimberley; Laffan, Shawn
    Conference Paper

  • (2006) Maddison, Sarah; Lommen, D; Wright, Christopher; Bourke, Tyler; Jorgensen, J; Van Dishoeck, E; Burton, Michael; Hughes, A; Wilner, D
    Conference Paper
    In order to understand planet formation, we need to probe the physical conditions of protoplanetary disks to see when and where grains begin to grow in size. Over the past four years we have been conducting a 3mm continuum survey with the Australia Telescope Compact Array of disks around young stars (both T Tauri and Herbig Ae/B stars) in southern molecular clouds to investigate the evolution of protoplanetary disks and grain growth within these disks. The goals of our project are to obtain fluxes and hence determine the millimetre spectral energy indices, which provides information about the grain size distribution. We present results from our successful 2005 millimetre season, in which we observed 15 southern T Tauri sources (10 in Chamaeleon and 5 in Lupus). The opacity indices suggest the presence of mm-sized dust aggregates and hence substantial grain growth in the majority of these disks. We also present preliminary results from our follow-up 2006 observations of three sources (HD100546, WW Cha and RU Lup) are centimetre wavelengths and discuss the possibility of detecting pebble-sized "grains" in these disks.

  • (2006) Gwinner, G; Gomez, E; Orozco, L; Galvan, A; Sheng, D; Zhao, Yunjie; Sprouse, G; Behr, J; Jackson, K; Pearson, Mark; Aubin, S; Flambaum, Victor
    Journal Article

  • (2002) Flambaum, Victor; Stewart, Glen; Russell, Graeme; Horvat, J.; Dou, S.
    Journal Article

  • (2003) O'Neill, Paul Michael
    Thesis

  • (2000) Turner, Ian; Leyden, Vincent; Symonds, Graham; McGrath, J; Jackson, A
    Conference Paper

  • (2006) Ranasinghe, Roshanka; Turner, Ian; Symonds, Graham
    Journal Article
    The results of a series of 2DH numerical and 3D scaled physical modelling tests indicate that processes governing shoreline response to submerged structures, such as artificial surfing reefs, are different from those associated with emergent offshore breakwaters. Unlike the case of emergent offshore breakwaters, where shoreline accretion (salient development) is expected under all structural/environmental conditions, the principal mode of shoreline response to submerged structures can vary between erosive and accretive, depending on the offshore distance to the structure. The predominant wave incidence angle and structure crest level also have important implications on the magnitude of shoreline response, but not on the mode of shoreline response (i.e. erosion vs. accretion). Based on the results obtained here, a predictive empirical relationship is proposed as a preliminary engineering tool to assess shoreline response to submerged structures. Crown Copyright (C) 2006 Published by Elsevier B.V. All rights reserved.