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ISO spectroscopy of young stellar objects [PDF]

, 1999
Observations of gas-phase and solid-state species toward young stellar objects (YSOs) with the spectrometers on board the Infrared Space Observatory are reviewed. The excitation and abundances of the atoms and molecules are sensitive to the changing
Dishoeck, E.F., Black, J.H., Boogert, A.C.A., Boonman, A.M.S., Ehrenfreund, P., Gerakines, P.A., de Graauw, Th., Helmich, F.P., Keane, J.V., Lahuis, F., Schutte, W.A., Tielens, A.G.G.M., Whittet, D.C.B., Wright, C.M., van den Ancker, M.E., Blake, G.A., Creech-Eakman, M., Waters, L.B.F.M., Wesselius, P.R.   +18 more
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Accretion disks in luminous young stellar objects

, 2015
An observational review is provided of the properties of accretion disks around young stars. It concerns the primordial disks of intermediate- and high-mass young stellar objects in embedded and optically revealed phases. The properties were derived from
M. Beltrán, W. J. D. W. I. A. D. Arcetri, Firenze, Italy., E. Observatory, S. Chile, Chile.   +6 more
semanticscholar   +1 more source

Disks around young stellar objects

Pramana, 2011
By 1939, when Chandrasekhar’s classic monograph on the theory of Stellar Structure was published, although the need for recent star formation was fully acknowledged, no one had yet recognized an object that could be called a star in the process of being born.
openaire   +1 more source

JWST/NIRCam detections of dusty subsolar-mass young stellar objects in the Small Magellanic Cloud

Nature Astronomy, 2023
O. Jones, C. Nally, N. Habel, L. Lenkić, K. Fahrion, A. Hirschauer, L. Chu, M. Meixner, G. D. Marchi, O. Nayak, M. Robberto, E. Sabbi, P. Zeidler, C. A. D. Oliveira, Tracy Beck, K. Biazzo, B. Brandl, G. Giardino, T. Jerabkova, C. Keyes, J. Muzerolle, N. Panagia, K. Pontoppidan, Ciaran Rogers, B. Sargent, D. Soderblom   +25 more
semanticscholar   +1 more source

IRAS Colours of Young Stellar Objects

Publications of the Astronomical Society of Australia, 1991
AbstractThe effects of including low quality IRAS flux data in colour-colour diagrams is investigated, with a view to identifying Young Stellar Objects from the IRAS database. Colour criteria to perform this task are derived.
M. Suters, W. Zealey
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Observations of Young Stellar Objects

1988
After a brief description of the main properties of embedded protostellar sources, I investigate in some detail the hypothesis that CO bipolar flows are pushed by winds emanating from the infrared central sources associated with the molecular outflows.
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Infrared Classification of Young Stellar Objects

1996
The radiative transfer equation for a dusty envelope as close as possible to an embedded central source possesses scaling properties. For a given dust chemical composition, the solution depends only on overall optical depth and the functional form of the radial dust distribution.
Željko Ivezić, Moshe Elitzur
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Dust Around Young Stellar Objects

1996
In this paper, the properties of circumstellar dust grains located in the environment of young stellar objects will be reviewed. After a short introduction to the field of young stellar objects, the main results of infrared spectroscopy will be discussed. Infrared and millimetre continuum observations form a further topic of this paper.
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Evolution of Young Stellar Objects

2012
This chapter decribes the evolution of stellar objects after the PMF phase when a young stellar object forms via accretion from its circumstellar cloud. It is difficult, if not impossible, to draw a line between the process of protostellar formation and the evolution of a protostar toward a mature star on the main sequence.
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Young stellar objects in groups.

1994
The authors present four groups which contain several massive young objects in different evolutionary states, mainly Herbig Ae/Be stars and compact H II regions. They try to ascertain the exact nature of the components of the group, via photometry and spectroscopy. This study is illustrated by the case of AFGL 4029.
Deharveng, L., Zavagno, Annie, Caplan, J.   +2 more
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