Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21715409g&link_type=abstract
American Astronomical Society, AAS Meeting #217, #154.09; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
X-ray luminosities of single OB and early-type WN stars show a tendency to scale with the stellar bolometric luminosity. A long-standing question is whether this is essentially a coincidence of the parameters that generate X-ray emission from the generally nonlinear wind strength, or if it is indicative of some X-ray generation process that more directly taps into the bolometric luminosity via some consistent conversion efficiency. Here I explore the former possibility by adopting a novel approach to the general scaling laws for X-ray emission from embedded wind shocks, and find that a coincidental connection between the various nonlinear scalings, resulting in a net response that is broadly proportional to stellar luminosity, is a plausible resolution of this puzzle.
This work was supported by a NASA ADP grant.
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