Publications (29)
Broadband, millimeter-wave anti-reflective structures on sapphire ablated with femto-second laser
R. Takaku, S. Hanany, H. Imada +13
We designed, fabricated, and measured anti-reflection coating (ARC) on sapphire that has 116% fractional bandwidth and transmission of at least 97% in the millimeter wave band. The…
Simple Photoelectric Absorption during Dipping in the ASCA Observation of XB1916-053
M. J. Church, T. Dotani, M. Balucinska-Church +4
We report results of analysis of the ASCA observation of the Low Mass X-ray Binary dipping source XB1916-053 made on 1993, May 2nd. We have shown that the spectra can be well fitte…
X-ray and UV spectroscopy of Galactic diffuse hot gas along the LMC X--3 sight line
Y. Yao, Q. D. Wang, T. Hagihara +3
We present Suzaku spectra of X-ray emission in the fields just off the LMC X-3 sight line. OVII, OVIII, and NeIX emission lines are clearly detected, suggesting the presence of an…
Chandra Observations of SDSS J1004+4112: Constraints on the Lensing Cluster and Anomalous X-Ray Flux Ratios of the Quadruply Imaged Quasar
N. Ota, N. Inada, M. Oguri +15
We present results from Chandra observations of SDSS J1004+4112, a strongly lensed quasar system with a maximum image separation of 15". All four bright images of the quasar, as we…
Energy of the Th Nuclear Clock Isomer Determined by Absolute -ray Energy Difference
A. Yamaguchi, H. Muramatsu, T. Hayashi +10
The low-lying isomeric state of Th provides unique opportunities for high-resolution laser spectroscopy of the atomic nucleus. We determine the energy of this isomeric stat…
Overview of the Medium and High Frequency Telescopes of the LiteBIRD satellite mission
L. Montier, B. Mot, P. de Bernardis +232
LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Univer…
Mission design of LiteBIRD
T. Matsumura, Y. Akiba, J. Borrill +66
LiteBIRD is a next-generation satellite mission to measure the polarization of the cosmic microwave background (CMB) radiation. On large angular scales the B-mode polarization of t…
Locating the Warm-Hot Intergalactic Medium in the Simulated Local Universe
K. Yoshikawa, K. Dolag, Y. Suto +11
We present an analysis of mock spectral observation of warm-hot intergalactic medium (WHIM) using a constrained simulation of the local universe. The simulated map of oxygen emissi…
Future Japanese missions for the study of warm-hot intergalactic medium
T. Ohashi, M. Ishida, S. Sasaki +10
We present our proposal for a small X-ray mission DIOS (Diffuse Intergalactic Oxygen Surveyor) to perform survey observations of warm-hot intergalactic medium using OVII and OVIII…
DIOS: the Diffuse Intergalactic Oxygen Surveyor
T. Ohashi, M. Ishida, S. Sasaki +14
We present our proposal for a small X-ray mission DIOS (Diffuse Intergalactic Oxygen Surveyor), consisting of a 4-stage X-ray telescope and an array of TES microcalorimeters, coole…
Development of Multilayer Readout Wiring TES Calorimeter for Future X-ray Missions
Shin'ya Yamada, Y. Ezoe, Y. Ishisaki +7
We have fabricated multilayer readout wiring Transition Edge Sensors (TES), which enable us to realize both large effective area and high-energy resolution for future X-ray astroph…
Detection of an Iron Emission Feature from the Lensed BAL QSO H1413+117 at z=2.56
T. Oshima, K. Mitsuda, R. Fujimoto +8
We present the X-ray energy spectrum of the lensed BAL QSO H1413+117 (the Cloverleaf) at z=2.56 observed with the Chandra X-ray observatory. We detected 293 photons in a 40 ks Adva…
The LiteBIRD Satellite Mission - Sub-Kelvin Instrument
A. Suzuki, P. A. R. Ade, Y. Akiba +149
Inflation is the leading theory of the first instant of the universe. Inflation, which postulates that the universe underwent a period of rapid expansion an instant after its birth…
Probing Warm-Hot Intergalactic Medium Associated with the Virgo Cluster using an Oxygen Absorption Line
R. Fujimoto, Y. Takei, T. Tamura +8
To detect a warm-hot intergalactic medium associated with the large-scale structure of the universe, we observed a quasar behind the Virgo cluster with XMM-Newton. With a net expos…
Prospects for X-ray Studies of Galaxy Clusters with Astro-E2/XRS
T. Furusho, K. Mitsuda, N. Yamasaki +2
The Astro-E2 high resolution X-Ray Spectrometer (XRS) is expected to provide a major enhancement in study of clusters of galaxies. Astro-E2 is the fifth Japanese X-ray astronomy ob…
Energy Spectra of the Soft X-ray Diffuse Emission in Fourteen Fields Observed with Suzaku
T. Yoshino, K. Mitsuda, N. Y. Yamasaki +8
The soft diffuse X-ray emission of twelve fields observed with Suzaku are presented together with two additional fields from previous analyses. All have galactic longitudes 65 deg…
Faint X-ray sources resolved in the ASCA Galactic plane survey and their contribution to the Galactic ridge X-ray emission
M. Sugizaki, K. Mitsuda, H. Kaneda +3
The X-ray emission from the central region of the Galactic plane, |l|<45 deg and |b|<0.4 deg, was studied in the 0.7-10 keV energy band with a spatial resolution of ~3' with the AS…
The Cessation of Flickering during Dips in Cygnus X-1
M. Balucinska-Church, T. Takahashi, Y. Ueda +4
We report the discovery of the cessation of flickering in dips in the black hole candidate Cygnus X-1, detected for the first time in the ASCA observation of May 9th., 1995. During…
ASTRO-H White Paper - Introduction
T. Takahashi, K. Mitsuda, R. Kelley +4
ASTRO-H White Papers are meant to provide useful information to scientists who plan observations from the satellite. This short paper introduces the 16 ASTRO-H White Papers in addi…
X-ray Spectroscopy of the Core of the Perseus Cluster with Suzaku: Elemental Abundances in the Intracluster Medium
Takayuki Tamura, Y. Maeda, K. Mitsuda +7
The results from Suzaku observations of the central region of the Perseus cluster are presented. Deep exposures with the X-ray Imaging Spectrometer provide high quality X-ray spect…
International X-ray Observatory (IXO) Assessment Study Report for the ESA Cosmic Vision 2015-2025
X. Barcons, D. Barret, M. Bautz +17
The International X-Ray Observatory (IXO) will address fundamental questions in astrophysics, including "When did the first SMBH form? How does large scale structure evolve? What h…
Concept Design of Low Frequency Telescope for CMB B-mode Polarization satellite LiteBIRD
Y. Sekimoto, P. A. R. Ade, A. Adler +232
LiteBIRD has been selected as JAXA's strategic large mission in the 2020s, to observe the cosmic microwave background (CMB) -mode polarization over the full sky at large angular…
DIOS: the dark baryon exploring mission
T. Ohashi, Y. Ishisaki, Y. Ezoe +12
DIOS (Diffuse Intergalactic Oxygen Surveyor) is a small satellite aiming for a launch around 2020 with JAXA's Epsilon rocket. Its main aim is a search for warm-hot intergalactic me…
ORIGIN: Metal Creation and Evolution from the Cosmic Dawn
J. W. den Herder, L. Piro, T. Ohashi +156
ORIGIN is a proposal for the M3 mission call of ESA aimed at the study of metal creation from the epoch of cosmic dawn. Using high-spectral resolution in the soft X-ray band, ORIGI…
The NeXT Mission
T. Takahashi, R. Kelley, K. Mitsuda +28
The NeXT (New exploration X-ray Telescope), the new Japanese X-ray Astronomy Satellite following Suzaku, is an international X-ray mission which is currently planed for launch in 2…
The Hot and Energetic Universe: The X-ray Integral Field Unit (X-IFU) for Athena+
D. Barret, J. W. den Herder, L. Piro +55
The Athena+ mission concept is designed to implement the Hot and Energetic Universe science theme submitted to the European Space Agency in response to the call for White Papers fo…
ASCA Observations of GRO J1744-28
M. Nishiuchi, K. Koyama, Y. Maeda +7
We report the ASCA results of the bursting X-ray pulsar \gro, which was observed in February 1996 and March 1997. The source flux in the 2--10 keV band was erg/s…
LiteBIRD: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization
M. Hazumi, P. A. R. Ade, A. Adler +233
LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and…
The Nature of Unresolved Soft X-ray Emission from the Galactic Disk
K. Masui, K. Mitsuda, N. Y. Yamasaki +4
Although about 40% of the soft X-ray background emission in 0.4 to 1 keV range has extragalactic origins and thus is totally blocked by the Galactic absorption in midplane directio…