Abstracts, Galactic Center Workshop '98
GCNEWS
A Newsletter for Galactic Center Research
This Volume was edited by Angela Cotera & Heino Falcke
email: gcnews@aoc.nrao.edu
ABSTRACT
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Cold matter in the Galactic Center region measured with the X-ray satellite ASCA
Sakano, M.1; Maeda, Y.2; Nishiuchi, M.1; Koyama, K.1; Yokogawa, J.1
1 Department of Physics, Kyoto University, Sakyo, Kyoto 606-8502, Japan; 2 Department of Astronomy and Astrophysics, 516 Davey Laboratory, Pennsylvania State University, University Park PA 16802-6305, U.S.A.;
ABSTRACT:
We report the cold matter distribution in the Galactic Center region.
We measured the column density of X-ray binaries in the region
using the X-ray satellite ASCA, and derive the total mass and
distribution of the cold matter in this region.
The column densities are given by a smooth function of the angular
distance from the Galactic Plane. Assuming a disk-like mass distribution
with 500 pc radius, we estimate the total mass to be ~ 6* 107 M_o.
Together with other wavelength results, we discuss the physical conditions
of the cold matter in the Galactic Center region.
LINKS: Program, Author, sakano@cr.scphys.kyoto-u.ac.jp
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