Discovering a 5.72-d period in the supergiant fast X-ray transient AX J1845.0-0433
Abstract
Temporal analysis of INTEGRAL/IBIS data has revealed a 5.7195 ± 0.0007 d periodicity in the supergiant fast X-ray transient source AX J1845.0-0433, which we interpret as the orbital period of the system. The new-found knowledge of the orbital period is utilized to investigate the geometry of the system by means of estimating an upper limit for the size of the supergiant (<27 R⊙) as well as the eccentricity of the orbit (ɛ < 0.37).
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- September 2013
- DOI:
- arXiv:
- arXiv:1307.0709
- Bibcode:
- 2013MNRAS.434.2182G
- Keywords:
-
- stars: winds;
- outflows;
- X-rays: binaries;
- X-rays: bursts;
- X-rays: individual: AX J1845.0-0433;
- X-rays: individual: IGR J18450-0435;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 6 pages, 6 figures, accepted for publication in MNRAS