An infrared view of (candidate accretion) disks around massive young stars

Simple item page
dc.creatorBik, A.
dc.creatorLenorzer, A.
dc.creatorThi, W-. F.
dc.creatorPuga-Antolin, E.
dc.creatorWaters, L. B. F. M.
dc.creatorKaper, L.
dc.creatorMartin-Hernandez, L. N.
dc.date2007-12-03
dc.date.accessioned2026-07-07T08:46:55Z
dc.date.available2026-07-07T08:46:55Z
dc.descriptionNear-infrared surveys of high-mass star-forming regions start to shed light onto their stellar content. A particular class of objects found in these regions, the so-called massive Young Stellar Objects (YSOs) are surrounded by dense circumstellar material. Several near- and mid-infrared diagnostic tools are used to infer the physical characteristics and geometry of this circumstellar matter. Near-infrared hydrogen emission lines provide evidence for a disk-wind. The profiles of the first overtone of the CO band-heads, originating in the inner 10 AU from the central star, are well fitted assuming a keplerian rotating disk. The mid-infrared spectral energy distribution requires the presence of a more extended envelope containing dust at a temperature of about 200 K. CRIRES observations of CO fundamental absorption lines confirm the presence of a cold envelope. We discuss the evolutionary status of these objects.
dc.description8 pages, 5 figures, to appear in the proceedings for "Massive Star Formation: Observations confront Theory 2007" edited by H. Beuther
dc.identifierhttps://arxiv.org/abs/0712.0301
dc.identifierhttp://arxiv.org/abs/0712.0301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143416
dc.subjectAstrophysics
dc.titleAn infrared view of (candidate accretion) disks around massive young stars
dc.typetext

Files

Collections

arXiv