414 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP12 papers
- Kyoto UniversityJP9 papers
- National Astronomical Observatory of JapanJP5 papers
- Tohoku UniversityJP3 papers
- National Institute of InformaticsJP2 papers
- Princeton UniversityUS2 papers
- Space Telescope Science InstituteUS2 papers
- Subaru (Japan)JP2 papers
- University of LeicesterGB2 papers
- University of Maryland, College ParkUS2 papers
- California Institute of TechnologyUS1 paper
- Centre for Research in Engineering Surface TechnologyIE1 paper
25 papers
Quasi-real-time dual-comb spectroscopy with 750-MHz Yb:fiber combs
Haochen Tian, Runmin Li, Lukasz A. Sterczewski +3
We present quasi-real-time dual-comb spectroscopy (DCS) using two Yb:fiber combs with ~750 MHz repetition rates. A computational coherent averaging technique is employed to correct…
Logical Characterization of Contextual Hidden-Variable Theories based on Quantum Set Theory
Masanao Ozawa
While non-contextual hidden-variable theories are proved to be impossible, contextual ones are possible. In a contextual hidden-variable theory, an observable is called a beable if…
Analytic properties of electromagnetic field of binary compact stars and electromagnetic precursors to gravitational waves
Tomoki Wada, Masaru Shibata, Kunihito Ioka
We analytically study the properties of the electromagnetic field in vacuum around close binary compact stars containing at least one neutron star. We show that the orbital motion…
Recent advances in higher order quasi-Monte Carlo methods
Takashi Goda, Kosuke Suzuki
In this article we review some of recent results on higher order quasi-Monte Carlo (HoQMC) methods. After a seminal work by Dick (2007, 2008) who originally introduced the concept…
E-semigroups over closed convex cones
Anbu Arjunan, R. Srinivasan, S. Sundar
We initiate a study of E-semigroups over convex cones. We prove a structure theorem for E-semigroups which leave the algebra of compact operators invariant. Then we study in detail…
Carleman estimates for a magnetohydrodynamics system and application to inverse source problems
Xinchi Huang, Masahiro Yamamoto
In this article, we consider a linearized magnetohydrodynamics system for incompressible flow in a three-dimensional bounded domain. We first prove two kinds of Carleman estimates.…
The 105 month Swift-BAT all-sky hard X-ray survey
Kyuseok Oh, Michael Koss, Craig B. Markwardt +10
We present a catalog of hard X-ray sources detected in the first 105 months of observations with the Burst Alert Telescope (BAT) coded mask imager on board the Swift observatory. T…
Bounding Errors Due to Switching Delays in Incrementally Stable Switched Systems (Extended Version)
Kengo Kido, Sean Sedwards, Ichiro Hasuo
Time delays pose an important challenge in networked control systems, which are now ubiquitous. Focusing on switched systems, we introduce a framework that provides an upper bound…
Causality-Aided Falsification
Takumi Akazaki, Yoshihiro Kumazawa, Ichiro Hasuo
Falsification is drawing attention in quality assurance of heterogeneous systems whose complexities are beyond most verification techniques' scalability. In this paper we introduce…
Categorical Liveness Checking by Corecursive Algebras
Natsuki Urabe, Masaki Hara, Ichiro Hasuo
Final coalgebras as "categorical greatest fixed points" play a central role in the theory of coalgebras. Somewhat analogously, most proof methods studied therein have focused on gr…
Time Robustness in MTL and Expressivity in Hybrid System Falsification (Extended Version)
Takumi Akazaki, Ichiro Hasuo
Building on the work by Fainekos and Pappas and the one by Donze and Maler, we introduce AvSTL, an extension of metric interval temporal logic by averaged temporal operators. Its e…
Period-Luminosity Relation for Type II Cepheids
Noriyuki Matsunaga, Michael W. Feast, John W. Menzies
We have estimated JHKs magnitudes corrected to mean intensity for LMC type II Cepheids found in the OGLE-III survey. Period-luminosity relations (PLRs) are derived in JHKs as well…
The Subaru/XMM-Newton Deep Survey (SXDS) - V. Optically Faint Variable Object Survey
Tomoki Morokuma, Mamoru Doi, Naoki Yasuda +19
We present our survey for optically faint variable objects using multi-epoch (8-10 epochs over 2-4 years) -band imaging data obtained with Subaru Suprime-Cam over 0.918 deg…
The Subaru/XMM-Newton Deep Survey (SXDS) - VI. Properties of Active Galactic Nuclei Selected by Optical Variability
Tomoki Morokuma, Mamoru Doi, Naoki Yasuda +11
We present the properties of active galactic nuclei (AGN) selected by optical variability in the Subaru/XMM-Newton Deep Field (SXDF). Based on the locations of variable components…
The Effect of Poloidal Magnetic Field on Type I Planetary Migration: Significance of Magnetic Resonance
Takayuki Muto, Masahiro N. Machida, Shu-ichiro Inutsuka
We study the effect of poloidal magnetic field on type I planetary migration by linear perturbation analysis in the shearing-sheet approximation and the analytic results are compar…
Magnetic Properties and Metastable States in Spin-Crossover Transition of Co-Fe Prussian Blue Analogues
Y. Konishi, H. Tokoro, M. Nishino +1
The combination of spin transitions and magnetic ordering provides an interesting structure of phase transitions in Prussian blue analogues (PBAs). To understand the structure of s…
Replica analysis of a preferential urn model
Jun Ohkubo, Muneki Yasuda, Kazuyuki Tanaka
We analyse a preferential urn model with randomness using the replica method. The preferential urn model is a stochastic model based on the concept "the rich get richer." The repli…
The Elongations and Supersonic Motions of Molecular Clouds
Jin Koda, Tsuyoshi Sawada, Tetsuo Hasegawa +1
New 13CO data from the BU-FCRAO Milky Way Galactic Ring Survey (GRS) are analyzed to understand the shape and internal motions of molecular clouds. For a sample of more than five h…
On Heating of Cluster Cooling Flows by Sound Waves
Yutaka Fujita, Takeru Ken Suzuki
We investigate heating of the cool core of a galaxy cluster through the dissipation of sound waves excited by the activities of the central active galactic nucleus (AGN). Using a w…
Making the corona and the fast solar wind: a self-consistent simulation for the low-frequency Alfven waves from photosphere to 0.3AU
Takeru K. Suzuki, Shu-ichiro Inutsuka
We show that the coronal heating and the fast solar wind acceleration in the coronal holes are natural consequence of the footpoint fluctuations of the magnetic fields at the photo…
The Reionization History and Early Metal Enrichment inferred from the Gamma-Ray Burst Rate
T. Murakami, D. Yonetoku, M. Umemura +2
Based on the gamma-ray burst (GRB) event rate at redshifts of , which is assessed by the spectral peak energy-to-luminosity relation recently found by Yonetoku et…
Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
Yutaka Fujita, Takeru Ken Suzuki, Keiichi Wada
Using an analytical model and numerical simulations, we show that acoustic waves generated by turbulent motion in intracluster medium effectively heat the central region of a so-ca…
NMA CO (J=1-0) Observations of the Halpha/Radio Lobe Galaxy NGC 3079: Gas Dynamics in a Weak Bar Potential and Central Massive Core
J. Koda, Y. Sofue, K. Kohno +4
within 24 lines with 80 characters) We present ^12CO (1-0) observations in the central 4.5 kpc (1 arcmin) of the Halpha/Radio lobe galaxy NGC 3079 with the Nobeyama Millimeter Arra…
Detecting z > 10 objects through carbon, nitrogen and oxygen emission lines
Maki Suginohara, Tatsushi Suginohara, David N. Spergel
By redshift of 10, star formation in the first objects should have produced considerable amounts of Carbon, Nitrogen and Oxygen. The submillimeter lines of C, N and O redshift into…