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We present results of 120 ks observation of a compact group of galaxies HCG~62 ($z=0.0145$) with Suzaku XIS and HXD-PIN\@. The XIS spectra for four annular regions were fitted with two temperature {\it vapec} model with variable abundance,…

We present results from a 150 ksec Suzaku observation of the Seyfert 1.5 NGC 3516 in October 2005. The source was in a relatively highly absorbed state. Our best-fit model is consistent with the presence of a low-ionization absorber which…

We report here on the longest deep X-ray observation of a SFXT outside outburst, with an average luminosity level of 1E33 erg/s (assuming 3 kpc distance). This observation was performed with Suzaku in December 2009 and was targeted on…

High Energy Astrophysical Phenomena · Physics 2015-05-19 L. Sidoli , P. Esposito , L. Ducci

The Galactic black-hole binary GRO J1655$-$40 was observed with Suzaku on 2005 September 22--23, for a net exposure of 35 ks with the X-ray Imaging Spectrometer (XIS) and 20 ks with the Hard X-ray Detector (HXD). The source was detected…

We present the results of a uniform and systematic search for blue-shifted Fe K absorption lines in the X-ray spectra of five bright Broad-Line Radio Galaxies (BLRGs) observed with Suzaku. We detect, for the first time at X-rays in…

High Energy Astrophysical Phenomena · Physics 2015-05-19 F. Tombesi , R. M. Sambruna , J. N. Reeves , V. Braito , L. Ballo , J. Gofford , M. Cappi , R. F. Mushotzky

We observed the Galactic black hole candidate H1743-322 with Suzaku for approximately 32 ksec, while the source was in a low/hard state during its 2008 outburst. We collected and analyzed the data with the HXD/PIN, HXD/GSO and XIS cameras…

High Energy Astrophysical Phenomena · Physics 2015-05-18 J. L. Blum , J. M. Miller , E. Cackett , K. Yamaoka , H. Takahashi , J. Raymond , C. S. Reynolds , A. C. Fabian

The Swift/BAT nine-month survey observed 153 AGN, all with ultra-hard X-ray BAT fluxes in excess of 10^-11 erg cm^-2 s^-1 and an average redshift of 0.03. Among them, four of the most luminous BAT AGN (44.73 < Log L(BAT) < 45.31) were…

High Energy Astrophysical Phenomena · Physics 2015-06-15 V. Fioretti , L. Angelini , R. F. Mushotzky , M. Koss , G. Malaguti

A report is presented on Suzaku observations of the ultra-luminous X-ray source X-1 in the starburst galaxy M82, made three time in 2005 October for an exposure of ~ 30 ks each. The XIS signals from a region of radius 3 around the nucleus…

Observations of the Ultra Luminous X-ray source (ULX) Holmberg IX X-1 were carried out with Suzaku twice, once on 2012 April 13 and then on 2012 October 24, with exposures of 180 ks and 217 ks, respectively. The source showed a hard…

High Energy Astrophysical Phenomena · Physics 2016-12-14 Shogo B. Kobayashi , Kazuhiro Nakazawa , Kazuo Makishima

The Coma cluster was observed with an X-ray Imaging Spectrometer (XIS) onboard Suzaku in six pointings, including the central X-ray peak region, the 14'west offset region, 30'and 34'north-west offset regions, and 44'and 60'south-west offset…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Takuya Sato , Kyoko Matsushita , Naomi Ota , Kosuke Sato , Kazuhiro Nakazawa , Craig L. Sarazin

We methodically model the broad-band Suzaku spectra of a small sample of six 'bare' Seyfert galaxies: Ark 120, Fairall 9, MCG-02-14-009, Mrk 335, NGC 7469 and SWIFT J2127.4+5654. The analysis of bare Seyferts allows a consistent and…

High Energy Astrophysical Phenomena · Physics 2015-05-20 A. R. Patrick , J. N. Reeves , D. Porquet , A. G. Markowitz , A. P. Lobban , Y. Terashima

We present jointly analyzed data from three deep Suzaku observations of NGC 1365. These high signal-to-noise spectra enable us to examine the nature of this variable, obscured AGN in unprecedented detail on timescales ranging from hours to…

High Energy Astrophysical Phenomena · Physics 2015-06-12 L. W. Brenneman , G. Risaliti , M. Elvis , E. Nardini

The Suzaku X-ray satellite observed the young stellar object V1647 Ori on 2008 October 8 during the new mass accretion outburst reported in August 2008. During the 87 ksec observation with a net exposure of 40 ks, V1647 Ori showed a high…

Solar and Stellar Astrophysics · Physics 2012-07-04 Kenji Hamaguchi , Nicolas Grosso , Joel H. Kastner , David A. Weintraub , Michael Richmond

We present the results of six Suzaku observations of the recurrent black hole transient 4U1630-472 during its decline from outburst from February 8 to March 23 in 2006. All observations show the typical high/soft state spectral shape in the…

We present 7 sequential weekly observations of NGC 5548 conducted in 2007 with the \textit{Suzaku} X-ray Imaging Spectrometer (XIS) in the 0.2-12 keV band and Hard X-ray Detector (HXD) in 10-600 keV band. The iron K$\alpha$ line is well…

We present a spectral variability study of the XMM-Newton and Suzaku observations of one of the most extreme Narrow Line Seyfert 1 galaxies, IRAS13224-3809. The X-ray spectrum is characterized by two main peculiar features, i) a strong soft…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 G. Ponti , L. C. Gallo , A. C. Fabian , G. Miniutti , A. Zoghbi , P. Uttley , R. R. Ross , R. V. Vasudevan , Y. Tanaka , W. N. Brandt

We have analyzed X-ray data of SMC X-1 obtained with \textit{Suzaku}, and discovered a combination of an absorption line and an underlying broadened emission line centered at 6.4 keV in an observation performed on May 19, 2012. This…

High Energy Astrophysical Phenomena · Physics 2019-03-28 Megu Kubota , Hirokazu Odaka , Toru Tamagawa , Toshio Nakano

We report on the deepest X-ray observation of the narrow-line Seyfert 1 galaxy Mrk 335 in the low-flux state obtained with Suzaku. The data are compared to a 2006 high-flux Suzaku observation when the source was ~10-times brighter.…

High Energy Astrophysical Phenomena · Physics 2015-06-23 L. C. Gallo , D. R. Wilkins , K. Bonson , C-Y. Chiang , D. Grupe , M. L. Parker , A. Zoghbi , A. C. Fabian , S. Komossa , A. L. Longinotti

The ULIRG Mrk 273 contains two infrared nuclei, N and SW, separated by 1 arcsec. A Chandra observation has identified the SW nucleus as an absorbed X-ray source with nH ~4e23 cm-2 but also hinted at the possible presence of a Compton thick…

Astrophysics of Galaxies · Physics 2018-04-04 K. Iwasawa , Vivian U , J. M. Mazzarella , A. M. Medling , D. B. Sanders , A. S. Evans

Diffuse X-rays from the Galactic center (GC) region were found to exhibit many K-shell lines from iron and nickel atoms in the 6--9 keV band. The strong emission lines seen in the spectrum are neutral iron K$\alpha$ at 6.4~keV, He-like iron…

High Energy Astrophysical Phenomena · Physics 2010-07-29 T. G. Tsuru , H. Uchiyama , M. Nobukawa , M. Sawada , S. G. Ryu , R. Fukuoka , K. Koyama