Observing grain growth in protoplanetary disks Maddison, Sarah en_US Lommen, D en_US Wright, Christopher en_US Bourke, Tyler en_US Jorgensen, J en_US Van Dishoeck, E en_US Burton, Michael en_US Hughes, A en_US Wilner, D en_US 2021-11-25T12:54:43Z 2021-11-25T12:54:43Z 2006 en_US
dc.description.abstract 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. en_US
dc.language English
dc.language.iso EN en_US
dc.publisher American Astronomical Society en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Observing grain growth in protoplanetary disks en_US
dc.type Conference Paper en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.description.notePublic (c) 2006: American Astronomical Society en_US US en_US
unsw.relation.faculty UNSW Canberra
unsw.relation.faculty Science
unsw.relation.ispartofconferenceLocation Seattle, USA en_US
unsw.relation.ispartofconferenceName 2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting en_US
unsw.relation.ispartofconferenceProceedingsTitle Bulletin of the American Astronomical Society, Vol 38 en_US
unsw.relation.ispartofconferenceYear 2007 en_US
unsw.relation.ispartofpagefrompageto 912-912 en_US
unsw.relation.originalPublicationAffiliation Maddison, Sarah, Centre for Astrophysics and Supercomputing, Swinburne University of Technology en_US
unsw.relation.originalPublicationAffiliation Lommen, D en_US
unsw.relation.originalPublicationAffiliation Wright, Christopher, Physical, Environmental & Mathematical Sciences, Australian Defence Force Academy, UNSW en_US
unsw.relation.originalPublicationAffiliation Bourke, Tyler en_US
unsw.relation.originalPublicationAffiliation Jorgensen, J en_US
unsw.relation.originalPublicationAffiliation Van Dishoeck, E en_US
unsw.relation.originalPublicationAffiliation Burton, Michael, Physics, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Hughes, A en_US
unsw.relation.originalPublicationAffiliation Wilner, D en_US School of Science * School of Physics *
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