... Many young stars are surrounded by disks of gas and dust which are a natural by ... dust emission by 10 - 30 million years, but again cannot distinguish between a ... suggest the presence of mm-sized dust aggregates and hence grain growth in the disks ...
... In the northeastern part of the disk, where prominent dust filaments seem to emerge from the nuclear region, we find a velocity anomaly which indicates outflow of HI gas into the halo of the galaxy. ...
... The optical/UV SED must be flatter than the prediction of a simple blackbody disk since the dust emission cuts off just above the sublimation temperature, and thus does not modify the optical spectrum. ...
... Disks 14:35-14:55 Warrick Lawson Evolution of Pre-Main Sequence Stars 14:55-15:15 John Storey The IR connection 15:15-15:35 ... smaddison@swin.edu.au, Modeling Protostellar Disks Robert Smith, r-smith@adfa.edu.au, Dust and ices in clouds and bipolar ...
... Disks 14:35-14:55 Warrick Lawson Evolution of Pre-Main Sequence Stars 14:55-15:15 John Storey The IR connection 15:15-15:35 ... smaddison@swin.edu.au, Modeling Protostellar Disks Robert Smith, r-smith@adfa.edu.au, Dust and ices in clouds and bipolar ...
... 2002). Appendices OOSTERLOO, T.A., MORGANTI, R., SADLER, E.M.,VERGANI, D. & CALDWELL, N. "Extended HI disks in dust lane elliptical g alaxies". ...
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Ссылки http://www.atnf.csiro.au/the_atnf/annual_reports/2002/17189_p65-100.pdf -- 752.5 Кб -- 14.07.2003 Похожие документы
... For simplicity, we assume that the dust is associated with a cylindrical face-on disk with uniform dust mass density. ... modelled these effects by assuming that dust in each galaxy was distributed as an exponential disk with scale radius r0 30 kpc ...
... The dust grains in the disks have to grow from submicron to kilometre sizes within a few million years, and the largerst grains that can be observed directly are of about centimetre sizes. ...
... velocity distribution through the dust lane all along the disk, and with a spectral ... dust, it is also much better than the usual optical photometry when used to compare ...