6.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Academia SinicaTW1.4k papers
- National Astronomical Observatory of JapanJP910 papers
- The University of TokyoJP744 papers
- Center for Astrophysics Harvard & SmithsonianUS671 papers
- Centre National de la Recherche ScientifiqueFR668 papers
- European Southern ObservatoryCL490 papers
- California Institute of TechnologyUS470 papers
- The Graduate University for Advanced Studies, SOKENDAIJP427 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP425 papers
- Jet Propulsion LaboratoryUS360 papers
- Max Planck Institute for AstronomyDE342 papers
- Leiden UniversityNL340 papers
11 papers · 2 filters
Three-dimensional non-vacuum pulsar outer-gap model: Localized acceleration electric field in the higher altitudes
Kouichi Hirotani
We investigate the particle accelerator that arises in a rotating neutron-star magnetosphere. Solving the Poisson equation for the electro-static potential, the Boltzmann equations…
Compact formulae, dynamics and radiation of charged particles under synchro-curvature losses
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
We consider the fundamental problem of charged particles moving along and around a curved magnetic field line, revising the synchro-curvature radiation formulae introduced by Cheng…
An assessment of the pulsar outer gap model. I: Assumptions, uncertainties, and implications for the gap size and the accelerating field
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
The popular outer gap model of magnetospheric emission from pulsars has been widely applied to explain the properties observed in -rays. However, its quantitative predictions re…
An assessment of the pulsar outer gap model. II: Implications for the predicted -ray spectra
Daniele Viganò, Diego F. Torres, Kouichi Hirotani +1
One of the most important predictions of any gap model for pulsar magnetospheres is the predicted -ray spectra. In the outer gap model, the properties of the synchro-curvature r…
The Proper Motion of the Galactic Center Pulsar Relative to Sagittarius A*
Geoffrey C. Bower, Adam Deller, Paul Demorest +12
We measure the proper motion of the pulsar PSR J1745-2900 relative to the Galactic Center massive black hole, Sgr A*, using the Very Long Baseline Array (VLBA). The pulsar has a tr…
Synchrotron Self-inverse Compton Radiation From Reverse-shock on GRB120326A
Yuji Urata, Kuiyun Huang, Satoko Takahashi +6
We present multi-wavelength observations of a typical long duration GRB 120326A at , including rapid observations using a submillimeter array (SMA), and a comprehensive mo…
The Intrinsic Two-Dimensional Size of Sagittarius A*
Geoffrey C. Bower, Sera Markoff, Andreas Brunthaler +9
We report the detection of the two-dimensional structure of the radio source associated with the Galactic Center black hole, Sagittarius A*, obtained from Very Long Baseline Array…
Does a strong particle accelerator arise very close to the light cylinder in a pulsar magnetosphere?
Kouichi Hirotani
We examine if an efficient particle acceleration takes place by a magnetic-field-aligned electric field near the light cylinder in a rotating neutron star magnetosphere. Constructi…
A Magnetohydrodynamic Model of The M87 Jet. II. Self-consistent Quad-shock Jet Model for Optical Relativistic Motions and Particle Acceleration
Masanori Nakamura, David L. Meier
We describe a new paradigm for understanding both relativistic motions and particle acceleration in the M87 jet: a magnetically dominated relativistic flow that naturally produces…
Limb-Brightened Jet of 3C 84 Revealed by the 43-GHz Very-Long-Baseline-Array Observation
H. Nagai, T. Haga, G. Giovannini +8
We present a study of sub-pc scale radio structure of the radio galaxy 3C 84/NGC 1275 based on the Very Long Baseline Array (VLBA) data at 43 GHz. We discover a limb-brightening in…
Detection of bridge emission above 50 GeV from the Crab pulsar with the MAGIC telescopes
J. Aleksić, S. Ansoldi, L. A. Antonelli +153
The Crab pulsar is the only astronomical pulsed source detected at very high energy (VHE, E>100GeV) gamma-rays. The emission mechanism of VHE pulsation is not yet fully understood,…