Hard X-ray flares in IGR J08408-4503 unveil clumpy stellar winds
Abstract
Context: A 1000-s flare from a new hard X-ray transient,
Aims: Multi-wavelength observations, combining high-energy and optical data, were used to unveil the nature of
Methods: A search in all INTEGRAL public data for other bursts from
Results:
Conclusions: Hard X-ray flares from SFXTs allow to probe the stellar winds of massive stars, and could possibly be associated with wind perturbations due to line-driven instabilities.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- April 2007
- DOI:
- 10.1051/0004-6361:20066317
- arXiv:
- arXiv:0712.1200
- Bibcode:
- 2007A&A...465L..35L
- Keywords:
-
- gamma rays: observations;
- stars: supergiants;
- X-rays: individuals: <ASTROBJ>IGR J08408-4503</ASTROBJ>;
- Astrophysics
- E-Print:
- 5 pages with 5 figures. Published as a Letter in Astronomy &