2006/06/11 by Ehud Behar, Behar, Ehud, Raanan Nordon +5
Engineering · Physics and Astronomy · #Astro and Planetary Science #Astrophysics (astro-ph) #FOS: Physical sciences #Reservoir Engineering and Simulation Methods #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0606251
replaced with version of Feb. 27, 2007
openalex publication_date 2006/06/11 · arxiv created 2007/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
eta Carinae is a stellar binary system with a period of 5.54 years. It harbors one of the brightest and most massive stars in our galaxy. This paper presents spectroscopic evidence for a fast (up to 2,000 km/s) X-ray outflow of ionized gas launched from eta Carinae just before what is believed to be the binary periastron (point of smallest binary separation). The appearance of this high-velocity component, just as the irregular flares in the X-ray light curve, can not be explained by the simple continuous binary wind interaction, adding to the intrigue of the eta Carinae system.