Dust disks around old Pre Main-Sequence stars: HST/NICMOS2 scattered light images and modeling

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dc.creatorAugereau, J. C.
dc.creatorLagrange, A. M.
dc.creatorMouillet, D.
dc.creatorMenard, F.
dc.date2000-10-11
dc.date.accessioned2026-07-07T01:55:56Z
dc.date.available2026-07-07T01:55:56Z
dc.descriptionWe present recent near-infrared detections of circumstellar disks around the two old PMS Herbig stars HD 141569 and HD 100546 obtained with the HST/NICMOS2 camera. They reveal extended structures larger than 350-400 AU in radius. While the HD 100546 disk appears as a continuous disk down to 40 AU, the HD 141569 environment seems more complex, splitted at least into two dust populations. As a convincing example, the full modeling of the disk surrounding HR 4796, another old PMS star, is detailed and confronted with more recent observations.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/0010217
dc.identifierhttp://arxiv.org/abs/astro-ph/0010217
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1826
dc.subjectAstrophysics
dc.titleDust disks around old Pre Main-Sequence stars: HST/NICMOS2 scattered light images and modeling
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