Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP4.5k papers
- Yukawa Institute for Theoretical PhysicsJP2.7k papers
- The University of OsakaJP2.3k papers
- Nagoya UniversityJP2.2k papers
- High Energy Accelerator Research OrganizationJP2.2k papers
- Centre National de la Recherche ScientifiqueFR2.1k papers
- Tokyo Institute of TechnologyJP2k papers
- University of TsukubaJP1.7k papers
- Brookhaven National LaboratoryUS1.6k papers
- Stony Brook UniversityUS1.5k papers
- Waseda UniversityJP1.5k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.5k papers
77 papers · 2 filters
Effects of rotation on the revival of a stalled shock in supernova explosions
T. Yamasaki, S. Yamada
In order to infer the effects of rotation on the revival of a stalled shock in supernova explosions, we investigated steady accretion flows with a standing shock. We first obtained…
Damped Lyman alpha Absorbing Galaxies At Low Redshifts z<1 From Hierarchical Galaxy Formation Models
Katsuya Okoshi, Masahiro Nagashima
We investigate Damped Ly-alpha absorbing galaxies (DLA galaxies) at low redshifts z<1 in the hierarchical structure formation scenario to clarify the nature of DLA galaxies because…
Discovery of a Large Scale Clumpy Structure around the Lynx Supercluster at z~1.27
Fumiaki Nakata, Tadayuki Kodama, Kazuhiro Shimasaku +12
We report the discovery of a probable large scale structure composed of many galaxy clumps around the known twin clusters at z=1.26 and z=1.27 in the Lynx region. Our analysis is b…
Nobeyama Millimeter Array Observations of GRB 030329: a Decay of Afterglow with Bumps and Molecular Gas in the Host Galaxy
K. Kohno, T. Tosaki, T. Okuda +12
Nobeyama Millimeter Array was used to observe millimeter-wave afterglow of GRB 030329 at 93 GHz and 141 GHz from 2003 April 6 to 2003 May 30. A sensitive search for CO(J=1-0) emiss…
Chandra Observation of the Starburst Galaxy NGC 2146
Tatsuya Inui, Hironori Matsumoto, Takeshi Go Tsuru +4
We present six monitoring observations of the starburst galaxy NGC 2146 using the Chandra X-ray Observatory. We have detected 67 point sources in the 8'.7 x 8'.7 field of view of t…
ADAS analysis of the differential emission measure structure of the inner solar corona. II. A study of the `quiet Sun' inhomogeneities from SOHO CDS-NIS spectra
A. C. Lanzafame, D. H. Brooks, J. Lang
We present a study of the differential emission measure (DEM) of a `quiet Sun' area observed in the extreme ultraviolet at normal incidence by the Coronal Diagnostic Spectrometer (…
Development of an advanced Compton camera with gaseous TPC and scintillator
A. Takada, K. Hattori, H. Kubo +8
A prototype of the MeV gamma-ray imaging camera based on the full reconstruction of the Compton process has been developed. This camera consists of a micro-TPC that is a gaseous Ti…
Alfven Wave-Driven Proto-Neutron Star Winds And R-Process Nucleosynthesis
Takeru K. Suzuki, Shigehiro Nagataki
We propose magnetic proto-neutron star (PNS) winds driven by \Alfven waves as well as the neutrino heating as an appropriate site for the r-process nucleosynthesis. \Alfven waves e…
The Acceleration Mechanism of Resistive MHD Jets Launched from Accretion Disks
T. Kuwabara, K. Shibata, T. Kudoh +1
We analyzed the results of non-linear resistive magnetohydrodynamical (MHD) simulations of jet formation to study the acceleration mechanism of axisymmetric, resistive MHD jets. Th…
TV Corvi Revisited: Precursor and Superhump Period Derivative Linked to the Disk Instability Model
M. Uemura, R. E. Mennickent, R. Ishioka +9
We report optical photometric observations of four superoutbursts of the short-period dwarf nova TV Crv. This object experiences two types of superoutbursts; one with a precursor a…
A Spatial and Spectral Study of Nonthermal Filaments in Historical Supernova Remnants: Observational Results with Chandra
Aya Bamba, Ryo Yamazaki, Tatsuo Yoshida +2
The outer shells of young supernova remnants (SNRs) are the most plausible acceleration sites of high-energy electrons with the diffusive shock acceleration (DSA) mechanism. We stu…
Dark Matter Search with Direction Sensitive Scintillators
H. Sekiya, M. Mionwa, Y. Shimizu +2
We have carried out the dark matter search with a 116g direction-sensitive stilbene crystal in Kamioka Observatory. With the crystal fixed to the earth, we searched the modulation…
Nature of a Strongly-Lensed Submillimeter Galaxy SMM J14011+0252
K. Motohara, T. Takata, F. Iwamuro +6
We have carried out near-infrared JHK spectroscopy of a gravitationally lensed submillimeter galaxy SMM J14011+0252 at z=2.565, using OHS and CISCO on the Subaru telescope. This ob…
A general proof of the conservation of the curvature perturbation
David H. Lyth, Karim A. Malik, Misao Sasaki
Without invoking a perturbative expansion, we define the cosmological curvature perturbation, and consider its behaviour assuming that the universe is smooth over a sufficiently la…
Dynamical Expansion of Ionization and Dissociation Front around a Massive Star. I. A Mode of Triggered Star Formation
Takashi Hosokawa, Shu-ichiro Inutsuka
We analyze the dynamical expansion of the HII region and outer photodissociation region (PDR) around a massive star by solving the UV and FUV radiation transfer and the thermal and…
Starburst at the Expanding Molecular Superbubble in M82: Self-Induced Starburst at the Inner Edge of the Superbubble
Satoki Matsushita, Ryohei Kawabe, Kotaro Kohno +3
We present high spatial resolution (2.3"x1.9" or 43 pc x 36 pc at D = 3.9 Mpc) 100 GHz millimeter-wave continuum emission observations with the Nobeyama Millimeter Array toward an…
XMM-Newton Observations of G32.45+0.1and G38.55+0.0: diffuse hard X-ray sources found with the ASCA Galactic Plane Survey
Hiroya Yamaguchi, Masaru Ueno, katsuji Koyama +2
We report on XMM-Newton observations of G32.45+0.1 and G38.55+0.0. These were discovered as diffuse hard X-ray sources with the ASCA Galactic plane survey, but the limited spatial…
The Subaru Deep Field: The Optical Imaging Data
N. Kashikawa, K. Shimasaku, N. Yasuda +35
The Subaru Deep Field (SDF) project is a program of Subaru Observatory to carry out a deep galaxy survey over a blank field as large as 34'x27'. The program consists of very deep m…
A low upper-limit on the lithium isotope ratio in HD140283
Wako Aoki, Susumu Inoue, Satoshi Kawanomoto +4
We have obtained a high-S/N (900-1100), high-resolving-power (R=95000) spectrum of the metal-poor subgiant HD 140283 in an effort to measure its 6Li/7Li isotope ratio. From a 1-D a…
s-process branching at 185W revised
P. Mohr, T. Shizuma, H. Ueda +7
The neutron capture cross section of the unstable s-process branching nucleus 185W has been derived from experimental data of the inverse 186W(g,n)185W photodisintegration taken wi…
The Peculiar 2004 Superoutburst in the Helium Dwarf Nova, 2003aw
D. Nogami, B. Monard, A. Retter +5
We conducted a time-resolved photometric campaign of the helium dwarf nova, 2003aw in 2004 May--June. 2003aw stayed at 14.7--15.7 mag for the first several days during this campaig…
The Largest Blueshifts of [O III] emission line in Two Narrow-Line Quasars
Kentaro Aoki, Toshihiro Kawaguchi, Kouji Ohta
We have obtained optical intermediate resolution spectra (R = 3000) of the narrow-line quasars DMS 0059-0055 and PG 1543+489. The [O III] emission line in DMS 0059-0055 is blueshif…
Dark energy reflections in the redshift-space quadrupole
Kazuhiro Yamamoto, Bruce A. Bassett, Hiroaki Nishioka
We show that the redshift-space quadrupole will be a powerful tool for constraining dark energy even if the baryon oscillations are missing from the usual monopole power spectrum a…
Testing for double inflation with WMAP
David Parkinson, Shinji Tsujikawa, Bruce A. Bassett +1
With the WMAP data we can now begin to test realistic models of inflation involving multiple scalar fields. These naturally lead to correlated adiabatic and isocurvature (entropy)…