An X-Ray Face-on View of the Galactic Center Molecular Clouds Observed with Suzaku

Details An X-Ray Face-on View of the Galactic Center Molecular Clouds Observed with Suzaku An X-Ray Face-on View of the Galactic Center Molecular Clouds Observed with Suzaku

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..439..430r&link_type=abstract

The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies. Proceedings of a workshop held at Shanghai, China on

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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*.

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