Modeling The RXTE Light Curve of Eta Carinae and WR140

Details Modeling The RXTE Light Curve of Eta Carinae and WR140 Modeling The RXTE Light Curve of Eta Carinae and WR140

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340801r&link_type=abstract

American Astronomical Society, AAS Meeting #213, #408.01; Bulletin of the American Astronomical Society, Vol. 41, p.205

Astronomy and Astrophysics

Astronomy

Scientific paper

Colliding Wind Binaries (CWBs) are a key mechanism for X-ray production in young clusters and star-forming regions, such as the Orion and Carina Nebulae. Their extremely fast winds slam together to produce hard X-rays, allowing a direct diagnostic of the CWB's wind parameters and hence the evolutionary state of the stars. The Rossi X-ray Timing Explorer (RXTE) has been regularly monitoring the 2-10keV X-rays of Eta Carinae and WR140, two massive-star CWBs with highly eccentric orbits. Using 3D Smoothed Particle Hydrodynamics (SPH) simulations to model the interaction of these winds, along with a simple model for the X-ray emission and absorption, we have been able to reproduce the RXTE light curves of both systems very well.

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