Silicon K-edge Dust Properties of Neutron Star Low-mass X-ray Binaries
Abstract
The dust properties of the line-of-sight materials in neutron star low-mass X-ray binaries (LMXBs) can be probed by X-ray observations and laboratory experiments. We use a Markov chain Monte Carlo (MCMC) method to conduct a spectral analysis of Chandra ACIS-S/HETG archival data of a sample of LMXBs, including GX 5-1 and GX 13+1. Our MCMC-based analysis puts constraints on the Si K-edge dust properties of the outflowing disk winds in this sample. Further X-ray observations of other LMXBs will help us better understand the grain features of dense outflows and accretion flows in neutron star binary systems.
- Publication:
-
Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution
- Pub Date:
- 2023
- DOI:
- 10.1017/S174392132200045X
- arXiv:
- arXiv:2303.17465
- Bibcode:
- 2023IAUS..363..342D
- Keywords:
-
- Stars: neutron;
- X-rays: binaries;
- ISM: dust;
- X-rays: ISM;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 3 pages, 2 figures, presented as a poster at the IAU Symposium 363 "Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution", Virtual, Italy, November 2021