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The ASTRO-H Mission
Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley +174
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space and Astronautical Science (ISAS). ASTRO-H will…
Abundance Patterns in the Interstellar Medium of the S0 Galaxy NGC 1316 (Fornax A) Revealed with Suzaku
Saori Konami, Kyoko Matsushita, Ryo Nagino +3
The Suzaku X-ray satellite observed the nearby S0 galaxy NGC 1316, a merger remnant aged 3 Gyr. The total good exposure time was 48.7 ksec. The spectra were well represented by a t…
Metallicity of the Fossil Group NGC 1550 Observed with Suzaku
Kosuke Sato, Madoka Kawaharada, Kazuhiro Nakazawa +4
We studied the temperature and metal abundance distributions of the intra-cluster medium (ICM) in a group of galaxies NGC 1550 observed with Suzaku. The NGC 1550 is classified as a…
Long-Term Spectral Variations of Ultraluminous X-ray Sources in the Interacting Galaxy Systems M51 and NGC4490/85
Tessei Yoshida, Ken Ebisawa, Kyoko Matsushita +2
Variable ultraluminous X-ray sources (ULXs), which are considered to be black hole binaries (BHBs), are known to show state transitions similarly to Galactic BHBs. However, the rel…
Mass Estimation of Merging Galaxy Clusters
Motokazu Takizawa, Ryo Nagino, Kyoko Matsushita
We investigate the impact of mergers on the mass estimation of galaxy clusters using -body + hydrodynamical simulation data. We estimate virial mass from these data and compare…
The Abundance Pattern of O, Ne, Mg, and Fe in the Interstellar Medium of S0 Galaxy NGC 4382 Observed with Suzaku
Ryo Nagino, Kyoko Matsushita
We derived O, Ne, and Mg abundances in the interstellar medium (ISM) of a relatively isolated S0 galaxy, NGC 4382, observed with the Suzaku XIS instruments and compared the O/Ne/Mg…