TheU, B, V colours of quasi-stellar objects and their spectral-energy distributions

1967 ◽  
Vol 52 (2) ◽  
pp. 507-528 ◽  
Author(s):  
C. Lari ◽  
G. Setti
Keyword(s):  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Stellar Objects ◽  
Quasi Stellar Objects

scholarly journals Spectral energy distributions of type 2 quasi-stellar objects: obscured star formation at high redshifts

2009 ◽  
Vol 400 (3) ◽  
pp. 1199-1207 ◽  
Author(s):  
D. Rigopoulou ◽  
V. Mainieri ◽  
O. Almaini ◽  
A. Alonso-Herrero ◽  
J.-S. Huang ◽  
...  
Keyword(s):  
Star Formation ◽  
Spectral Energy ◽  
Spectral Energy Distributions ◽  
Energy Distributions ◽  
Stellar Objects ◽  
Quasi Stellar Objects

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

scholarly journals Observational Studies of the Structure of Active Galactic Nuclei and QSOs

1989 ◽  
Vol 134 ◽  
pp. 273-283
Author(s):  
J. S. Miller
Keyword(s):  
Galactic Nuclei ◽  
Active Galaxies ◽  
Spectral Energy ◽  
Energy Distributions ◽  
Stellar Objects ◽  
Quasi Stellar Objects ◽  
Physical Information ◽  
To Come ◽  
Polarization Of Light ◽  
Insight Into

Direct observational information on the structures of the central objects of active galaxies and quasi-stellar objects is hard to come by. Most of what we believe about these regions is inferred from data concerning the emission line spectra, the spectral energy distributions of the featureless continuum, and the luminosities and variability of the active nucleus. Data on the polarization of light from active galaxies, especially spectropolarimetric data which distinguishes between lines and continua, can offer additional insight into the nature of the central object, to some extent more direct information insofar as it can provide geometrical as well as physical information.

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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