Infrared Energy Distributions and the Nature of Young Stellar Objects

1988 ◽  
pp. 93-109 ◽  
Author(s):  
Charles J. Lada
Keyword(s):  
Young Stellar Objects ◽  
Energy Distributions ◽  
Stellar Objects

Two New T Tauri stars and a Candidate FU Orionis Star associated with Bok Globules

1997 ◽  
Vol 163 ◽  
pp. 839-839
Author(s):  
J. L. Yun ◽  
M. Moreira
Keyword(s):  
Infrared Emission ◽  
T Tauri Stars ◽  
Emission Lines ◽  
Young Stellar Objects ◽  
Spectral Energy ◽  
Energy Distributions ◽  
Stellar Objects ◽  
T Tauri ◽  
Bok Globules ◽  
Reflection Nebulae

AbstractWe present photometric and spectroscopic evidence of two new T Tauri stars formed in the conditions of isolated small Bok globules. The spectral energy distributions of these objects display excess infrared emission, they are associated with optical reflection nebulae, and their optical spectra reveal Balmer emission lines and the Li I λ6707 Å absorption line. Additionnally, we report the discovery of what is likely to be a new FU Orionis star seen towards Bok globule CB34. The star is about 4 magnitudes brighter than it appears on the Palomar plates and is associated with the aggregate of young stellar objects forming in Bok globule CB34.

scholarly journals Interpreting Spectral Energy Distributions from Young Stellar Objects. I. A Grid of 200,000 YSO Model SEDs

2006 ◽  
Vol 167 (2) ◽  
pp. 256-285 ◽  
Author(s):  
Thomas P. Robitaille ◽  
Barbara A. Whitney ◽  
Remy Indebetouw ◽  
Kenneth Wood ◽  
Pia Denzmore
Keyword(s):  
Young Stellar Objects ◽  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Stellar Objects

Spectral energy distributions of young stellar objects. I - A turbospheric model for DR Tauri

1983 ◽  
Vol 267 ◽  
pp. 199 ◽  
Author(s):  
R. K. Ulrich ◽  
A. W. Shafter ◽  
G. Hawkins ◽  
G. Knapp
Keyword(s):  
Young Stellar Objects ◽  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Stellar Objects

RADIATIVE PROCESSES IN JETS

2010 ◽  
Vol 19 (06) ◽  
pp. 659-669 ◽  
Author(s):  
GABRIELA S. VILA
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Young Stellar Objects ◽  
Spectral Energy ◽  
Electromagnetic Spectrum ◽  
Physical Processes ◽  
Energy Distributions ◽  
Stellar Objects ◽  
Radiative Processes ◽  
Relativistic Particles

Relativistic jets and collimated outflows are ubiquitous phenomena in astrophysical settings, from young stellar objects up to Active Galactic Nuclei. The observed emission from some of these jets can cover the whole electromagnetic spectrum, from radio to gamma-rays. The relevant features of the spectral energy distributions depend on the nature of the source and on the characteristics of the surrounding environment. Here the author reviews the main physical processes that command the interactions between populations of relativistic particles locally accelerated in the jets, with matter, radiation and magnetic fields. Special attention is given to the conditions that lead to the dominance of the different radiative mechanisms. Examples from various types of sources are used to illustrate these effects.

scholarly journals Spectral Energy Distributions of Fragmenting Protostellar Disks

2012 ◽  
Vol 8 (S293) ◽  
pp. 278-280
Author(s):  
Olga Zakhozhay ◽  
Eduard I. Vorobyov
Keyword(s):  
Surface Temperature ◽  
Young Stellar Objects ◽  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Sharp Drop ◽  
Stellar Objects ◽  
Local Maxima ◽  
Protostellar Disks ◽  
Subsequent Rise

AbstractIn this article we show that massive and hot fragments forming in protostellar disks can leave characteristic signatures in spectral energy distributions (SEDs) of young stellar objects. This occurs when the fragment evaporates dust in its atmosphere, which results in a sharp drop in opacity and subsequent rise in the surface temperature of the fragment. These hot fragments can produce local maxima in the SEDs at 5–10 μm.

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