ASPCS
 
Back to Volume
Paper: An X-Ray Face-on View of the Galactic Center Molecular Clouds Observed with Suzaku
Volume: 439, The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies
Page: 430
Authors: Ryu, S. G.; Koyama, K.; Nobukawa, M.; Fukuoka, R.; Tsuru, T. G.
Abstract: We present a new methodology to derive positions of the Galactic center molecular clouds (MCs) along the line of sight, as an application study of the Galactic center diffuse X-rays (GCDX). We examined the Suzaku X-ray images and spectra of the GCDX near at MCs of Sgr B and Sgr C, and found that the GCDX can be divided into two parts: one suffers strong absorption by the MCs (NH >1023 H cm–2) and the other does not (NH∼ 6×1022 H cm–2). Assuming that the plasma of the GCDX is a sphere with a uniform volume emissivity around Sgr A*, we quantitatively estimated the line-of-sight positions of the MCs from the flux ratios of the GCDX. We successfully drew a face-on view showing that the MCs near at Sgr B and Sgr C are respectively located at the near and the far sides with respect to Sgr A*.
Back to Volume