X-ray Filament with a Strong 6.7 keV Line in the Galactic Center Region
Year: 2014
Type: preprint
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}=(17h44m00s.0, -29D13'40''.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 (apec) model. The best-fit 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}x10^{22} cm^{-2}, respectively. These values are similar to those of the largely extended Galactic center X-ray emission.
Authors: Yamauchi, Shigeo, Shimizu, Miku, Nakashima, Shinya, Nobukawa, Masayoshi, Tsuru, Takeshi Go, Koyama, Katsuji, 山内, 茂雄, 清水, 美来, 中島, 真也, 信川, 正順, 鶴, 剛, 小山, 勝二
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3101741834