Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..160a&link_type=abstract
Astronomy Reports, Volume 42, Issue 2, March 1998, pp.160-168
Astronomy and Astrophysics
Astronomy
2
Scientific paper
The emission in the resonance lines of hydrogen- and helium-like iron ions behind a shock front is calculated assuming total radiative cooling behind the front. The calculations are performed for velocities of the unperturbed gas relative to the front 4000 km/s < u_0 < 15 000 km/s. The density of the unperturbed gas is taken to be that typical for circumstellar flows in close binary systems. The calculations take into account the ionization of the material flowing into the front by hard radiation from the hot gas that has passed through the front. The recombination radiation of the inflowing material grows as the gas velocity increases, and exceeds the line emission of the gas behind the front when u_0 > 6000 km/s. Relevance of the results for the close binary system SS 433 is discussed.
Aleksandrova O. V.
Bychkov K. V.
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