The dynamics of molecular cloud envelopes in a varying ultraviolet radiation field

1992 ◽  
Vol 401 ◽  
pp. 182 ◽  
Author(s):  
C. B. de Boisanger ◽  
J.-P. Chieze ◽  
B. Meltz
Keyword(s):  
Ultraviolet Radiation ◽  
Radiation Field ◽  
Molecular Cloud

The integrated ultraviolet radiation field from QSOs

1987 ◽  
Vol 315 ◽  
pp. 180 ◽  
Author(s):  
Jill Bechtold ◽  
Ray J. Weymann ◽  
Zuo Lin ◽  
Matthew A. Malkan
Keyword(s):  
Ultraviolet Radiation ◽  
Radiation Field

scholarly journals Nature of the background ultraviolet radiation field at high redshifts

2000 ◽  
Vol 21 (1-2) ◽  
pp. 19-27 ◽  
Author(s):  
Archana Samantaray ◽  
Pushpa Khare
Keyword(s):  
Ultraviolet Radiation ◽  
Radiation Field

Submillimeter and far-infrared line observations of M17 SW - A clumpy molecular cloud penetrated by ultraviolet radiation

1988 ◽  
Vol 332 ◽  
pp. 379 ◽  
Author(s):  
J. Stutzki ◽  
G. J. Stacey ◽  
R. Genzel ◽  
A. I. Harris ◽  
D. T. Jaffe ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Molecular Cloud ◽  
Far Infrared

A Model of the Diffuse Ultraviolet Radiation Field

1995 ◽  
Vol 448 ◽  
pp. 848 ◽  
Author(s):  
Jayant Murthy ◽  
R. C. Henry
Keyword(s):  
Ultraviolet Radiation ◽  
Radiation Field

scholarly journals Lyα DOMINANCE OF THE CLASSICAL T TAURI FAR-ULTRAVIOLET RADIATION FIELD

2012 ◽  
Vol 756 (1) ◽  
pp. L23 ◽  
Author(s):  
Eric Schindhelm ◽  
Kevin France ◽  
Gregory J. Herczeg ◽  
Edwin Bergin ◽  
Hao Yang ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Radiation Field ◽  
T Tauri ◽  
Far Ultraviolet

A Discussion on astronomy in the ultraviolet - The interstellar ionization balance due to ultraviolet radiation

1975 ◽  
Vol 279 (1289) ◽  
pp. 331-336
Keyword(s):  
Interstellar Medium ◽  
Ultraviolet Radiation ◽  
Radiation Field ◽  
Chemical Abundances ◽  
Ionization Balance

A new estimate of the interstellar ultraviolet radiation field is used to analyse some well established observations of interstellar Na i, Ca n, Mg i, n in £, e and 8 Ori. Four models of the interstellar medium are used and chemical abundances derived relative to that of hydrogen, obtained from Lyman a data. The scatter of the results is discussed together with the apparent anomalous abundance of calcium.

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