A5091064034- Astrophysics and Star Formation Studies
- Radio Astronomy Observations and Technology
- Superconducting and THz Device Technology
- Cosmology and Gravitation Theories
- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Galaxies: Formation, Evolution, Phenomena
- Nanomaterials for catalytic reactions
- Stellar, planetary, and galactic studies
- Antenna Design and Optimization
- Astrophysics and Cosmic Phenomena
- Molecular Spectroscopy and Structure
- Spectroscopy and Laser Applications
- Physiological and biochemical adaptations
- Geophysics and Gravity Measurements
- Astrophysical Phenomena and Observations
- Astronomy and Astrophysical Research
- Adaptive optics and wavefront sensing
- Gamma-ray bursts and supernovae
- Atmospheric Ozone and Climate
- Solar and Space Plasma Dynamics
- Microwave Engineering and Waveguides
- Atomic and Molecular Physics
- Thermal Expansion and Ionic Conductivity
- Advanced Battery Materials and Technologies
National Astronomical Observatory of Japan
2018-2023
Azabu University
2023
Tokyo University of Agriculture and Technology
1996-2021
University of California, San Diego
2020
Korea Basic Science Institute
2018-2020
Kyoto University
2020
Stockholm University
2020
Japan Aerospace Exploration Agency
2014-2020
High Energy Accelerator Research Organization
2008-2018
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2018
The Q/U Imaging ExperimenT (QUIET) has observed the cosmic microwave background (CMB) at 43 and 95GHz. 43-GHz results have been published in QUIET Collaboration et al. (2011), here we report measurement of CMB polarization power spectra using 95-GHz data. This data set comprises 5337 hours observations recorded by an array 84 polarized coherent receivers with a total sensitivity 87 uK sqrt(s). Four low-foreground fields were observed, covering ~1000 square degrees effective angular...
LiteBIRD [Lite (Light) satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection] is a small to map microwave (CMB) radiation over full sky at large angular scales with unprecedented precision. Cosmological inflation, which leading hypothesis resolve problems in Big Bang theory, predicts that primordial gravitational waves were created during inflationary era. Measurements CMB are known as best probe detect waves. The working group authorized...
We present high-resolution CO J = 3–2 maps of the Galactic center region, taken with ASTE 10 m telescope. have collected approximately 30,000 spectra a 34'' grid spacing. The mapping area is roughly −18 < l +35 and −08 b +09, which includes central molecular zone Bania's Clump 2, covering almost full extent gas concentration in center. These images show behavior similar to 1–0 same resolution. Molecular shows higher 3–2/J intensity ratio (∼0.7) than spiral arms disk (∼0.4). 3–2/CO luminosity...
The Q/U Imaging ExperimenT (QUIET) is designed to measure polarization in the Cosmic Microwave Background, targeting imprint of inflationary gravitational waves at large angular scales (~ 1 degree). Between 2008 October and 2010 December, two independent receiver arrays were deployed sequentially on a 1.4 m side-fed Dragonian telescope. polarimeters which form focal planes use highly compact design based High Electron Mobility Transistors (HEMTs) that provides simultaneous measurements...
We have surveyed the central molecular zone (CMZ) of our Galaxy in CO J=3-2 line with Atacama Submillimeter-wave Telescope Experiment (ASTE). Molecular gas Galactic center shows high J=3-2/J=1-0 intensity ratio (~ 0.9) while spiral arms disk lower 0.5). The high-velocity compact cloud 0.02-0.02 and hyperenergetic shell 1.27+0.01, as well Sgr A region exhibit exceeding 1.5. also found a number small spots gas. Some these large velocity widths some seem to associate nonthermal threads or...
We report the results of millimeter and submillimeter molecular line mapping observations Galactic circumnuclear disk (CND). The CND appears as a large, asymmetric warm gas with high CO J = 3–2/CO 1–0 intensity ratio exceeding 1.5. It has mass (2–5) × 105 M☉ diameter about 10 pc, including well-known 2-pc radius ring dense around minispiral. can be clearly traced by lines HCN, H13CN, HCO+, HNC, but it is barely N2H+, SiO, CCS, HC3N lines. These data confirm entity CND, just part it. Line...
LiteBIRD is a next generation satellite aiming for the detection of Cosmic Microwave Background (CMB) B-mode polarization imprinted by primordial gravitational waves generated in era inflationary universe. The science goal to measure tensor-to-scaler ratio r with precision δr < 10<sup>-3</sup>♦, offering us crucial test major large-single-field slow-roll inflation models. planned conduct an all sky survey at sun-earth second Lagrange point (L2) angular resolution about 0.5...
Abstract We report on the results of molecular line observations toward $l=1{\rlap{\hskip.75pt{^\circ}}\hskip.75pt.\hskip1pt}3$ complex, an anomalous cloud complex in central zone Galaxy. The CO $J$=$3$–$2$ survey recently performed with Atacama Submillimeter Telescope Experiment (ASTE) 10 m telescope has found that enhanced $J$=$3$–$2$/$J$=$1$–$0$ intensity ratio. have made high-resolution maps $J$=$1$–$0$, HCN $J$=$1$–$0, {\rm HCO^{+}} J$=$1$–$0$, SiO and $J$=$2$–$1$ lines Nobeyama 45...
We estimated physical conditions of molecular gas in the central zone (CMZ) Galaxy, using our CO J=3-2 data obtained with Atacama Submillimeter Telescope Experiment (ASTE) conjunction J=1-0 12CO and 13CO previously observed NRO 45m telescope. The large velocity gradient (LVG) approximation was employed. Distributions density, kinetic temperature, column density are derived as functions position for entire coverage data. fairly determined 69 % points CMZ >= 1 sigma detections. Kinetic...
The aims of this study were to determine whether chronic oestrogen withdrawal influences the development ischaemic preconditioning (IPC) in female hearts, investigate mechanism whereby IPC is impaired, and assess direct activation protein kinase C (PKC) can mimic hearts with depletion.We performed Sham-operation (Sham) or bilateral ovariectomy on 16-week-old Sprague-Dawley rats. Ovariectomized rats randomized subcutaneous implantation 17beta-estradiol (OxE) placebo (OxP) pellets. Four weeks...
We mapped molecular gas toward the supernova remnant W44 in HCO+ J=1-0 line with Nobeyama Radio Observatory 45 m telescope and CO J=3-2 Atacama Submillimeter Telescope Experiment 10 telescope. High-velocity emission wings were detected both lines over area where radio shell of overlaps cloud plane sky. found that average velocity distributions wing can be fitted by a uniform expansion model. The best-fit velocities are 12.2+-0.3 km/s 13.2+-0.2 CO, respectively. non-wing component is also...
LiteBIRD is a candidate for JAXA s strategic large mission to observe the cosmic microwave background (CMB) polarization over full sky at angular scales.It planned be launched in 2020s with an H3 launch vehicle three years of observations Sun-Earth Lagrangian point (L2).The concept design has been studied by researchers from Japan, U.S., Canada and Europe during ISAS Phase-A1.Large scale measurements