Search Publications
X-Ray Temperature and Mass Measurements to the Virial Radius of Abell 1413 with Suzaku
Hoshino, Akio; Sato, Kosuke; Fukazawa, Yasushi +14 more
We present X-ray observations of the northern outskirts of the relaxed galaxy cluster A 1413 with Suzaku, whose XIS instrument has the low intrinsic background needed to make measurements of these low surface brightness regions. We excised 15 point sources superimposed on the image above a flux of 1 × 10-14erg cm-2s-1
Identification of CXOU J171405.7-381031 as a New Magnetar with XMM-Newton
Ishida, Manabu; Bamba, Aya; Nakamura, Ryoko +1 more
We observed the 3.8 s pulsar CXOU J171405.7
Suzaku Observations of the Merging Cluster Abell 85: Temperature Map and Impact Direction
Takata, Tadafumi; Furuzawa, Akihiro; Tamura, Takayuki +2 more
To investigate the present situation of the merging in the southern outer region of Abell 85, we carried out long-time (∼100 ks) observations with Suzaku, and produced an X-ray hardness ratio map. We found a high hardness ratio peak on the east side of a subcluster located south of the cluster; an X-ray spectrum of the region including this peak i…
Suzaku Wide-Band X-Ray Observation of the Narrow-Line Seyfert 1 Galaxy Ton S180
Hayashida, Kiyoshi; Anabuki, Naohisa; Takahashi, Hiroaki
We observed the luminous narrow-line Seyfert 1 galaxy Ton S180 with Suzaku, and obtained its wide-band (0.25-55 keV) X-ray spectra for the first time. The spectra were modeled with three components: a power-law component, a reflection from a highly ionized disk component, and an extra soft component either of a disk blackbody or a cutoff power-law…
Suzaku Constraints on Soft and Hard Excess Emissions from Abell 2199
Fukazawa, Yasushi; Makishima, Kazuo; Nakazawa, Kazuhiro +3 more
The nearby (z = 0.03015) cluster of galaxies Abell 2199 was observed by Suzaku in X-rays, with five pointings for ∼20ks each. From the XIS data, the temperature and metal abundance profiles were derived out to ∼700 kpc (0.4 times the virial radius). Both of these quantities decrease gradually from the center to peripheries by a factor of ∼2, while…
A New Candidate of a Cluster of Galaxies, 2XMM J045637.2+522411
Ueno, Masaru; Koyama, Katsuji; Bamba, Aya +1 more
We present XMM-Newton and Suzaku results of an X-ray source, 2XMM J045637.2+522411, found during an observation of a galactic supernova remnant (SNR), G156.2+5.7. By comparing its radial profile with the point-spread function, we found that 2XMM J045637.2+522411 is an extended source. X-ray spectra exhibited a line-like structure at 5.7-5.8 keV. S…