Infrared observations of SS433

Details Infrared observations of SS433 Infrared observations of SS433

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.281..282g&link_type=abstract

Nature, vol. 281, Sept. 27, 1979, p. 282, 283.

Astronomy and Astrophysics

Astronomy

15

Emission Spectra, Infrared Astronomy, Stellar Spectra, Cosmic Dust, H Alpha Line, Interstellar Extinction, Stellar Envelopes

Scientific paper

Simultaneous observations of SS433 at IR and visible wavelengths are reported. Three pronounced features are established: (1) an enormous apparent excess of IR over optical flux; (2) an almost flat spectrum for wavelengths greater than 1.2 microns; and (3) a variation of IR and optical flux together on a time scale of several days. The IR excess is attributed to a region of gas that radiates by free-free and free-bound emission processes with a total emission measure of the order of 10 to the 61st per cu cm.

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