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Infrared spectra of quasars and related objects (1972)

Dorschner, J. ; Friedemann, C. ; Gürtler, J. ; [et al.]

Springer

Astrophysics and space science 19 (1972), S. 263-270

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ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract An attempt is made to explain the infrared radiation observed for several quasars and Seyfert galaxies as thermal radiation of a dust envelope surrounding the cores of these objects. Two kinds of dust particles (graphite and silica) are taken into consideration. It is shown that the observed spectral behaviour and the luminosity in the infrared can be introduced as thermal radiation of silica grains. In the case of 3C 273 one finds that the radius of the dust envelope is about 50 pc and the total mass of dust is about 600M ⊙.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00645710

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