publication . Preprint . 2005

X-ray Outburst in Mira A

Karovska, M.; Schlegel, E.; Hack, W.; Wood, B.;
Open Access English
  • Published: 02 Mar 2005
We report here the Chandra ACIS-S detection of a bright soft X-ray transient in the Mira AB interacting symbiotic-like binary. We resolved the system for the first time in the X-rays. Using Chandra and HST images we determined that the unprecedented outburst is likely associated with the cool AGB star (Mira A), the prototype of Mira-type variables. X-rays have never before been detected from an AGB star, and the recent activity signals that the system is undergoing dramatic changes. The total X-ray luminosity of the system is several times higher than the luminosity estimated using previous XMM and ROSAT observations. The outburst may be caused by a giant flare ...
arxiv: Astrophysics::Galaxy AstrophysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Solar and Stellar Astrophysics
free text keywords: Astrophysics
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