X-ray filament with a strong 6.7-keV line in the Galactic center region
Abstract
An elongated X-ray source with a strong K-shell line from He-like iron (Fe XXVI) is found at (RA, Dec)J2000.0 = (17h44m00{s.}0, - 29°13'40{^''.}9) in the Galactic center region. The position coincides with the X-ray thread, G359.55+0.16, which is aligned with the radio non-thermal filament. The X-ray spectrum is well fitted with an absorbed thin thermal plasma (<monospace>apec</monospace>) model. The best-fitting temperature, metal abundance, and column density are 4.1^{+2.7}_{-1.8} keV, 0.58^{+0.41}_{-0.32} solar, and 6.1^{+2.5}_{-1.3} × 10^{22} cm-2, respectively. These values are similar to those of the largely extended Galactic center X-ray emission.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- December 2014
- DOI:
- 10.1093/pasj/psu122
- arXiv:
- arXiv:1409.4520
- Bibcode:
- 2014PASJ...66..125Y
- Keywords:
-
- Galaxy: center;
- ISM: individual objects (Suzaku J174400-2913);
- X-rays: ISM;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- Accepted for publication in PASJ