A5070168437- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Astrophysics and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- Gamma-ray bursts and supernovae
- Atmospheric Ozone and Climate
- Astrophysical Phenomena and Observations
- Astro and Planetary Science
- Dark Matter and Cosmic Phenomena
- Galaxies: Formation, Evolution, Phenomena
- Spectroscopy and Laser Applications
- Astronomy and Astrophysical Research
- Molecular Spectroscopy and Structure
- Particle Detector Development and Performance
- Reproductive Biology and Fertility
- Atomic and Molecular Physics
- Neutrino Physics Research
- Solar and Space Plasma Dynamics
- Particle Accelerators and Free-Electron Lasers
- Astronomical Observations and Instrumentation
- Sperm and Testicular Function
- Particle accelerators and beam dynamics
- Analog and Mixed-Signal Circuit Design
Nagoya University
2015-2024
Tsurugi Hospital
2023
University of Palermo
2023
TU Dortmund University
2023
University of Łódź
2023
The University of Adelaide
2019-2023
Western Sydney University
2023
Gifu University
2023
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2023
University of Turku
2023
We present the first results from science demonstration phase for Hi-GAL survey, <i>Herschel<i/> key program that will map inner Galactic plane of Milky Way in 5 bands. outline our data reduction strategy and some highlights on two observed 2° × tiles approximately centered at <i>l<i/> = 30° 59°. The regions are extremely rich intense highly structured extended emission which shows a widespread organization filaments. Source SEDs can be built hundreds objects fields, physical parameters...
We are performing a uniform and unbiased, ~7x7 degrees imaging survey of the Large Magellanic Cloud (LMC), using IRAC MIPS instruments on board Spitzer Space Telescope in order to agents galaxy's evolution (SAGE), interstellar medium (ISM) stars LMC. The detection diffuse ISM with column densities >1.2x10^21 H cm^-2 permits detailed studies dust processes ISM. SAGE's point source sensitivity enables complete census newly formed masses >3 solar that will determine current star formation rate...
Hi-GAL, the Herschel infrared Galactic Plane Survey, is an Open Time Key Project of Space Observatory. It will make unbiased photometric survey inner plane by mapping a 2° wide strip in longitude range ∣l∣ < 60° five wavebands between 70 μm and 500 μm. The aim Hi-GAL to detect earliest phases formation molecular clouds high-mass stars use optimum combination wavelength coverage, sensitivity, strategy, speed deliver homogeneous census star-forming regions cold structures interstellar medium....
An all sky map of the apparent temperature and optical depth thermal dust emission is constructed using Planck-HFI (350μm to 2 mm) andIRAS(100μm) data. The maps are correlated with tracers atomic (Hi) molecular gas traced by CO. correlation column density observed linear in lowest regions at high Galactic latitudes. At NH, consistent that for a given choice CO-to-H2 conversion factor. In intermediate NH range, departure from linearity observed, excess correlation. This attributed associated...
We estimate the conversion factor relating CO emission to H2 mass, alpha_CO, in five Local Group galaxies that span approximately an order of magnitude metallicity - M31, M 33, Large Magellanic Cloud (LMC), NGC 6822, and Small (SMC). model dust mass along line sight from infrared (IR) then solve for alpha_CO best allows a single gas-to-dust ratio (delta_GDR) describe each system. This approach remains sensitive CO-dark envelopes surrounding molecular clouds. In 31, LMC we find \approx 3-9...
Thermal images of cold dust in the Central Molecular Zone Milky Way, obtained with far-infrared cameras on board Herschel satellite, reveal a ∼3 × 107 M☉ ring dense and clouds orbiting Galactic center. Using simple toy model, an elliptical shape having semi-major axes 100 60 pc is deduced. The major axis this inclined by about 40° respect to plane sky oriented perpendicular Bar. appears trace system stable x2 orbits predicted for barred potential. Sgr A⋆ displaced geometrical center symmetry...
We studied star formation activities in the molecular clouds Large Magellanic Cloud. have utilized second catalog of 272 obtained by NANTEN to compare cloud distribution with signatures massive including stellar clusters, and optical radio HII regions. find that are classified into three types according formation; Type I shows no signature formation, II is associated relatively small region(s) III both young cluster(s). The continuum sources were used confirm GMCs do not host optically...
(Abridged) We present the first public release of high-quality data products (DR1) from Hi-GAL, {\em Herschel} infrared Galactic Plane Survey. Hi-GAL is keystone a suite continuum surveys near-IR to radio, and covers five wavebands at 70, 160, 250, 350 500 micron, encompassing peak spectral energy distribution cold dust for 8 < T 50K. This inner Milky Way in longitude range 68{\deg} > l -70{\deg} |b|<1{\deg} latitude strip. Photometric maps have been produced with ROMAGAL pipeline, that...
We present observations of the young supernova remnant (SNR) RX J1713.7−3946 with Fermi Large Area Telescope (LAT). clearly detect a source positionally coincident SNR. The is extended best-fit extension 055 ± 004 matching size non-thermal X-ray and TeV gamma-ray emission from remnant. positional coincidence allow us to identify LAT SNR J1713.7−3946. spectrum can be described by very hard power law photon index Γ = 1.5 0.1 that coincides in normalization steeper H.E.S.S.-detected at higher...
We present the properties of an extensive sample molecular clouds in Large Magellanic Cloud (LMC) mapped at 11 pc resolution CO(1-0) line. identify as regions connected CO emission, and find that distributions cloud sizes, fluxes masses are sensitive to choice decomposition parameters. In all cases, however, luminosity function is steeper than dN/dL \propto L^{-2}, suggesting a substantial fraction mass low-mass clouds. A correlation between size linewidth, while apparent for largest...
Recent observations of molecular clouds around rich massive star clusters including NGC 3603, Westerlund 2, and M20 revealed that the formation stars could be triggered by a cloud–cloud collision. By using three-dimensional, isothermal, magnetohydrodynamics simulations with effect self-gravity, we demonstrate massive, gravitationally unstable, cloud cores are formed behind strong shock waves induced We find have large effective Jeans mass owing to enhancement magnetic field strength...
Abstract Hub-filament systems (HFSs) are potential sites of massive star formation (MSF). To understand the role filaments in MSF and origin HFSs, we conducted a multiscale multiwavelength observational investigation molecular cloud G321.93–0.01. The 13 CO( J = 2–1) data reveal multiple namely, HFS-1, HFS-2, candidate HFS (C-HFS). HFS-1 HFS-2 exhibit significant mass accretion rates ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mrow> <mml:mover...
The status of the research on muon colliders is discussed and plans are outlined for future theoretical experimental studies. Besides continued work parameters a 3-4 0.5 TeV center-of-mass (CoM) energy collider, many studies now concentrating machine near 0.1 that could be factory s-channel production Higgs particles. We discuss various components in such colliders, starting from proton accelerator needed to generate pions heavy-Z target proceeding through phase rotation decay ($\pi \to \mu...
The production and event topology of three-jet events produced in p¯p collisions at √s=1.8 TeV have been studied with the Collider Detector Fermilab Tevatron Collider. distributions angular variables (ψ∗ cosθ∗) describing energy sharing between jets (x3 x4) are found to agree well tree-level QCD calculations. These predicted different shapes for initial-state subprocesses (quark-antiquark, quark-gluon, gluon-gluon). data consistent small expected contribution from quark-antiquark initial...
The lipid content and fatty acid composition of fresh immature in vitro matured bovine oocytes cultured media with or without serum, also those frozen-thawed were analysed. All ranked (A B) on the basis their cytoplasmic quality. Fatty (mol %; w/w) total fraction was analysed by gas chromatography. Triglyceride, cholesterol, phospholipid (phosphocholine-containing phospholipid) non-esterified contents determined using analysis kits. Phosphocholine-containing oocytes. Palmitic most abundant...
We observed the W28 field (for ~40 h) at Very High Energy (VHE) gamma-ray energies (E>0.1 TeV) with H.E.S.S. Cherenkov telescopes. A reanalysis of EGRET E>100 MeV data was also undertaken. Results from NANTEN 4m telescope Galactic plane survey and other CO observations have been used to study molecular clouds. discovered VHE emission (HESSJ1801-233) coincident northeastern boundary W28, a complex sources (HESSJ1800-240A, B C) ~0.5 deg south in disc. The differential photon spectra are well...
Inclusive J/\ensuremath{\psi} and \ensuremath{\psi}(2S) production has been studied in p\ifmmode\bar\else\textasciimacron\fi{}p collisions at \ensuremath{\surd}s =1.8 TeV using 2.6\ifmmode\pm\else\textpm\fi{}0.2 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$ of data taken with the Collider Detector Fermilab. The products cross section times branching fraction were measured as functions ${\mathit{P}}_{\mathit{T}}$ for...
We present the AGILE gamma-ray observations in energy range 50 MeV - 10 GeV of supernova remnant (SNR) W44, one most interesting systems for studying cosmic-ray production. W44 is an intermediate-age SNR (20, 000 years) and its ejecta expand a dense medium as shown by prominent radio shell, nearby molecular clouds, bright [SII] emitting regions. extend our analysis to energies substantially lower than previous measurements which could not conclusively establish nature radiation. find that...
We present measurements of the pseudorapidity (η) distribution charged particles (dNchdη) produced within |η|≤3.5 in proton-antiproton collisions at √s 630 and 1800 GeV. measure dNchdη η=0 to be 3.18±0.06(stat)±0.10(syst) GeV, 3.95±0.03 (stat)±0.13(syst) Many systematic errors ratio two energies cancel, we 1.26±0.01±0.04 for GeV that |η|≤3. Comparing lower-energy data, observe an increase faster than ln(s) η=0.Received 2 October 1989DOI:https://doi.org/10.1103/PhysRevD.41.2330©1990 American...
The second survey of the molecular clouds in 12CO (J = 1-0) was carried out Large Magellanic Cloud by NANTEN. sensitivity this is twice as high that previous NANTEN survey, leading to a detection with M_CO > 2 x 10^4 M_sun. We identified 272 clouds, 230 which are detected at three or more observed positions. derived physical properties, such size, line width, virial mass, 164 GMCs have an extent than beam size both major and minor axes. CO luminosity mass show good correlation M_VIR propto...
We present ∼1000 new candidate Young Stellar Objects (YSOs) in the Large Magellanic Cloud selected from Spitzer Space Telescope data, as part of Surveying Agents a Galaxy's Evolution (SAGE) Legacy program. The YSOs, detected by their excess infrared (IR) emission, represent early stages evolution, still surrounded disks and/or infalling envelopes. Previously, fewer than 20 such YSOs were known. SAGE Point Source Catalog regions color–magnitude space least confused with other IR-bright...
A new survey of the LMC has been completed in 2.6 mm carbon monoxide emission with NANTEN. This revealed 107 giant molecular clouds, first complete sample clouds a single galaxy at linear resolution ∼ 40 pc. The cloud mass ranges from 6 × 104 to 2 106 M⊙, and total estimated be 4–7 M⊙ for column density ≳ 1.0 1021 cm-2, corresponding 5–10% atomic mass. exhibit good spatial correlation youngest stellar clusters whose ages are ≲ 10 Myr, demonstrating that cluster formation is on-going these...
We report a measurement of the proton-antiproton total cross section ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$ at c.m.s. energies \ensuremath{\surd}s =546 and 1800 GeV. Using luminosity-independent method, we find ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$=61.26\ifmmode\pm\else\textpm\fi{}0.93 mb GeV 80.03\ifmmode\pm\else\textpm\fi{}2.24 =1800 In this energy range, ratio ${\mathrm{\ensuremath{\sigma}}}_{\mathrm{el}}$/${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$ increases from...