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201. http://www.mrao.cam.ac.uk/~kjbg1/lectures/lect_2.pdf
... This matter may absorb the radiation from the source, scatter it or in fact emit fur ther radiation. ... For the case of a homogeneous cloud with a constant source function and optical depth with initial incident intensity , the emergent intensity is This makes a lot of sense: the emergent radiation is the sum of the incident intensity attenuated by the total optical depth plus the sum of each section of cloud emission attenuated by the optical ...
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Ссылки http://www.mrao.cam.ac.uk/~kjbg1/lectures/lect_2.pdf -- 232.5 Кб -- 03.10.2003
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202. http://www.mso.anu.edu.au/~geoff/HEA/7_Emission_and_Absorption.pdf
... High Energy Astrophysics: Emission and Absorption 1/114 HST optical image of 3C273 Note the very strong central point source and the less luminous jet. ... 4 I n 2 F = d B ( T ) cos sin d = B ( T ) 0 0 High Energy Astrophysics: Emission and Absorption 16/114 6 The Einstein relations 6.1 Definition of the Einstein coefficients These relations are arrived at in a similar manner to Kirchhoff's law via the inclusion of a new process stimulated emission. ... They are separated in energy by h . ...
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Ссылки http://www.mso.anu.edu.au/~geoff/HEA/7_Emission_and_Absorption.pdf -- 1698.7 Кб -- 27.05.2003
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203. http://star.arm.ac.uk/~ambn/mass_loss.ps
A&A manuscript no. (will be inserted by hand later) Your thesaurus codes are: 08(08.12.1;08.13.2;09.07.1;13.09.6;13.18.5;13.21.5) ASTRONOMY AND ASTROPHYSICS 4.9.1996 Constraints on mass loss from dMe stars: theory and observations G.H.J. van den Oord 1 and J.G. Doyle 2 1 Sterrenkundig Instituut, p.o. box 80.000, 3508 TA Utrecht, The Netherlands 2 Armagh Observatory, Armagh BT61 9DG, N. Ireland Received ;accepted Abstract. ... Constraints on mass loss from dMe stars: theory and observations Fig. ...
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Ссылки http://star.arm.ac.uk/~ambn/mass_loss.ps -- 398.5 Кб -- 10.09.1996
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204. Guion S. Bluford Oral History
The questions in this transcript were asked during an oral history session with Dr. Guion S. Bluford, Jr. ... This oral history with Guy Bluford is being conducted in Houston, Texas, for the Johnson Space Center Oral History Project. ... I?d like to begin by talking about your career in the Air Force. ... NASA was starting to look for astronauts to fly the Space Shuttle and they opened up the opportunities for scientists and engineers (i.e. mission specialist astronauts) to be astronauts. ...
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Ссылки http://www.jsc.nasa.gov/history/oral_histories/BlufordGS/BlufordGS_8-2-04.htm -- 128.3 Кб -- 08.07.2015
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