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List of works by Akira Okumura

A Low‐Mass Planet with a Possible Sub‐Stellar‐Mass Host in Microlensing Event MOA‐2007‐BLG‐192 ⬇️

scientific article published in the Astrophysical Journal

A cocoon of freshly accelerated cosmic rays detected by Fermi in the Cygnus superbubble

scientific article

A cold neptune-mass planet OGLE-2007-BLG-368Lb: cold neptunes are common ⬇️

scientific article published in the Astrophysical Journal

A statistical approach to recognizing source classes for unassociated sources in the first Fermi-LAT catalog ⬇️

scientific article published in the Astrophysical Journal

Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT

scholarly article

Associating long-term {gamma}-ray variability with the superorbital period of LS I +61{deg}303 ⬇️

scientific article

Characterizing lenses and lensed stars of high-magnification single-lens gravitational microlensing events with lenses passing over source stars ⬇️

scientific article published in the Astrophysical Journal

Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope

scientific article published in Physical Review Letters

Constraining the high-energy emission from gamma-ray bursts with Fermi ⬇️

scientific article published in the Astrophysical Journal

Constraints on the cosmic-ray density gradient beyond the solar circle from Fermi {gamma}-ray observations of the third galactic quadrant ⬇️

scientific article published in the Astrophysical Journal

Constraints on the galactic population of TeV pulsar wind nebulae using Fermi large area telescope observations ⬇️

scientific article published in the Astrophysical Journal

Design concepts for the Cherenkov Telescope Array CTA: an advanced facility for ground-based high-energy gamma-ray astronomy

article by Marcos Actis et al published 23 November 2011 in Experimental Astronomy

Detection of a spectral break in the extra hard component of GRB 090926A ⬇️

scientific article published in the Astrophysical Journal

Detection of high-energy gamma-ray emission during the X-ray flaring activity in GRB 100728A ⬇️

scholarly article

Detection of the Small Magellanic Cloud in gamma-rays with Fermi/LAT

scientific article published in Astronomy and Astrophysics

Development of the camera for the large size telescopes of the Cherenkov Telescope Array

Discovery of a Jupiter/Saturn analog with gravitational microlensing

scientific article

Discovery of high-energy gamma-ray emission from the binary system PSR B1259-63/LS 2883 around periastron with Fermi ⬇️

ERRATUM: “CONSTRAINTS ON THE COSMIC-RAY DENSITY GRADIENT BEYOND THE SOLAR CIRCLE FROM FERMI γ-RAY OBSERVATIONS OF THE THIRD GALACTIC QUADRANT” (2011, ApJ, 726, 81)

scientific article published in the Astrophysical Journal

ERRATUM: “FERMI LARGE AREA TELESCOPE STUDY OF COSMIC-RAYS AND THE INTERSTELLAR MEDIUM IN NEARBY MOLECULAR CLOUDS” (2012, ApJ, 755, 22)

scientific article published in the Astrophysical Journal

ERRATUM: “FERMIDETECTION OF γ-RAY EMISSION FROM THE M2 SOFT X-RAY FLARE ON 2010 JUNE 12” (2012, ApJ, 745, 144)

scientific article published in the Astrophysical Journal

ERRATUM: “MULTI-WAVELENGTH OBSERVATIONS OF THE FLARING GAMMA-RAY BLAZAR 3C 66A IN 2008 OCTOBER” (2011, ApJ, 726, 43)

scientific article published in the Astrophysical Journal

ERRATUM: “THE SECOND CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE” (2011, ApJ, 743, 171)

scientific article published in the Astrophysical Journal

Fermi Detection of a Luminous γ-Ray Pulsar in a Globular Cluster ⬇️

scientific article published on November 3, 2011

Fermi LAT discovery of extended gamma-ray emission in the direction of supernova remnant W51C ⬇️

scientific article published in the Astrophysical Journal

Fermi LAT observation of diffuse gamma rays produced through interactions between local interstellar matter and high-energy cosmic rays ⬇️

scientific article published in the Astrophysical Journal

Fermi LAT observations of LS I +61{deg}303: first detection of an orbital modulation in GeV gamma rays ⬇️

scientific article published in the Astrophysical Journal

Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV

scholarly article

Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum

scientific article

Fermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes

scientific article published in Physical Review Letters

Fermi Large Area Telescope second source catalog

article

Fermi detection of {gamma}-ray emission from the M2 soft X-ray flare on 2010 June 12 ⬇️

scientific article published in the Astrophysical Journal

Fermi gamma-ray space telescope observations of gamma-ray outbursts from 3C 454.3 in 2009 December and 2010 April ⬇️

scientific article published in the Astrophysical Journal

Fermi gamma-ray space telescope observations of the gamma-ray outburst from 3C454.3 in November 2010 ⬇️

scientific article

Fermi large area telescope and multi-wavelength observations of the flaring activity of PKS 1510-089 between 2008 September and 2009 June ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope constraints on the gamma-ray opacity of the universe ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observation of a gamma-ray source at the position of eta Carinae ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observations of Markarian 421: the missing piece of its spectral energy distribution ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observations of gamma-ray pulsars PSR J1057-5226, J1709-4429, and J1952+3252 ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observations of misaligned active galactic nuclei ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observations of the cosmic-ray inducedγ-ray emission of the Earth’s atmosphere

scholarly article

Fermi large area telescope observations of the supernova remnant G8.7-0.1 ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope observations of two gamma-ray emission components from the quiescent Sun ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope study of cosmic rays and the interstellar medium in nearby molecular clouds ⬇️

scientific article published in the Astrophysical Journal

Fermi large area telescope view of the core of the radio galaxy Centaurus A ⬇️

scientific article published in the Astrophysical Journal

Fermi observations of Cassiopeia and Cepheus: diffuse gamma-ray emission in the outer galaxy ⬇️

scientific article published in the Astrophysical Journal

Fermi observations of high-energy gamma-ray emission from GRB 080916C.

scientific article

Fermi observations of high-energy gamma-ray emission from GRB 090217A ⬇️

article published in 2010

Fermi observations of {gamma}-ray emission from the moon ⬇️

scientific article published in the Astrophysical Journal

Fermi-LAT observations of the diffuse {gamma}-ray emission: implications for cosmic rays and the interstellar medium ⬇️

scientific article published in the Astrophysical Journal

Fermi-LAT observations of the gamma-ray burst GRB 130427A.

scientific article

Fermi-LAT search for pulsar wind nebulae around gamma-ray pulsars

scientific article published in the Astrophysical Journal

Fermi-LAT study of gamma-ray emission in the direction of supernova remnant W49B ⬇️

scientific article published in the Astrophysical Journal

Fermi-lat discovery of GeV gamma-ray emission from the young supernova remnant Cassiopeia A ⬇️

scientific article

FermiLarge Area Telescope observations of Local Group galaxies: detection of M 31 and search for M 33

scientific article published in Astronomy and Astrophysics

Frequency of solar-like systems and of ice and gas giants beyond the snow line from high-magnification microlensing events in 2005-2008 ⬇️

scientific article published in the Astrophysical Journal

Gamma-Ray Flares from the Crab Nebula

scientific article published in Science

Gamma-ray emission concurrent with the nova in the symbiotic binary V407 Cygni.

scientific article published in August 2010

Gamma-ray observations of the Orion molecular clouds with the Fermi large area telescope ⬇️

scientific article published in the Astrophysical Journal

GeV OBSERVATIONS OF STAR-FORMING GALAXIES WITH THEFERMILARGE AREA TELESCOPE ⬇️

scientific article published in the Astrophysical Journal

Geometry dependence of the light collection efficiency of BGO crystal scintillators read out by avalanche photo diodes

High-energy gamma-ray emission from solar flares: summary of Fermi large area telescope detections and analysis of two M-class flares ⬇️

scientific article published in the Astrophysical Journal

In-flight measurement of the absolute energy scale of the Fermi Large Area Telescope

Inferred Cosmic-Ray Spectrum from Fermi Large Area Telescopeγ-Ray Observations of Earth’s Limb

scientific article published in Physical Review Letters

Insights into the high-energy {gamma}-ray emission of Markarian 501 from extensive multifrequency observations in the Fermi era ⬇️

scientific article published in the Astrophysical Journal

Introducing the CTA concept

Limits on large extra dimensions based on observations of neutron stars with the Fermi-LAT

MOA-2009-BLG-387Lb: a massive planet orbiting an M dwarf

scientific article published in Astronomy and Astrophysics

Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050

scientific article published in Astronomy and Astrophysics

Masses and orbital constraints for the OGLE-2006-BLG-109Lb,c Jupiter/Saturn analog planetary system ⬇️

scientific article published in the Astrophysical Journal

Measurement of Separate Cosmic-Ray Electron and Positron Spectra with the Fermi Large Area Telescope

scientific article published in Physical Review Letters

Microlensing binaries discovered through high-magnification channel ⬇️

scientific article published in the Astrophysical Journal

Microlensing binaries with candidate brown dwarf companions ⬇️

scientific article published in the Astrophysical Journal

Microlensing event MOA-2007-BLG-400: exhuming the buried signature of a cool, Jovian-mass planet ⬇️

scientific article published in the Astrophysical Journal

Multi-wavelength observations of blazar AO 0235+164 in the 2008-2009 flaring state ⬇️

scientific article published in the Astrophysical Journal

Multi-wavelength observations of the flaring gamma-ray blazar 3C 66A in 2008 October ⬇️

scientific article published in the Astrophysical Journal

OGLE 2008-BLG-290: an accurate measurement of the limb darkening of a galactic bulge K giant spatially resolved by microlensing

scientific article published in Astronomy and Astrophysics

Observations of the young supernova remnant RX J1713.7-3946 with the Fermi large area telescope ⬇️

scientific article published in the Astrophysical Journal

Operating performance of the gamma-ray Cherenkov telescope: An end-to-end Schwarzschild–Couder telescope prototype for the Cherenkov Telescope Array

Optimization of the collection efficiency of a hexagonal light collector using quadratic and cubic Bézier curves

Periodic Emission from the Gamma-Ray Binary 1FGL J1018.6-5856

scientific article published in Science

Prospects for Cherenkov Telescope Array Observations of the Young Supernova Remnant RX J1713.7−3946

scientific article published in the Astrophysical Journal

Publisher’s Note: Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT [Phys. Rev. D85, 083007 (2012)]

scholarly article

Quantifying the interstellar medium and cosmic rays in the MBM 53, 54, and 55 molecular clouds and the Pegasus loop using Fermi-LAT gamma-ray observations ⬇️

scientific article published in the Astrophysical Journal

RADIO AND γ-RAY CONSTRAINTS ON THE EMISSION GEOMETRY AND BIRTHPLACE OF PSR J2043+2740 ⬇️

scientific article published in the Astrophysical Journal

ROBAST: Development of a ROOT-based ray-tracing library for cosmic-ray telescopes and its applications in the Cherenkov Telescope Array ⬇️

article

Schwarzschild-Couder telescope for the Cherenkov Telescope Array: development of the optical system

Search for dark matter satellites using Fermi-LAT ⬇️

scientific article published in the Astrophysical Journal

Search for gamma-ray emission from magnetars with the Fermi large area telescope ⬇️

scholarly article

Search for gamma-ray emission from x-ray-selected Seyfert galaxies with Fermi-LAT ⬇️

scientific article published in the Astrophysical Journal

Search for gamma-ray spectral lines with the Fermi Large Area Telescope and dark matter implications

scholarly article

Searches for cosmic-ray electron anisotropies with the Fermi Large Area Telescope

scholarly article

Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

scientific article published on 27 January 2021

Simulating the optical performance of a small-sized telescope with secondary optics for the Cherenkov Telescope Array

Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state

scientific article published in Astronomy and Astrophysics

Study of the Cosmic Rays and Interstellar Medium in Local H i Clouds Using Fermi-LAT Gamma-Ray Observations

scientific article published on 19 February 2020

Suzaku observations of luminous quasars: revealing the nature of high-energy blazar emission in low-level activity states ⬇️

scientific article published in the Astrophysical Journal

TARGET 5: A new multi-channel digitizer with triggering capabilities for gamma-ray atmospheric Cherenkov telescopes

TARGET: A multi-channel digitizer chip for very-high-energy gamma-ray telescopes

The Fermi Gamma-Ray Space Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1

scientific article published in Science

The Fermi Large Area Telescope on orbit: event classification, instrument response functions, and calibration

article

The Fermi all-sky variability analysis: a list of flaring gamma-ray sources and the search for transients in our galaxy ⬇️

scientific article published in the Astrophysical Journal

The GCT camera for the Cherenkov Telescope Array

The GCT camera for the Cherenkov Telescope Array ⬇️

The Gamma-ray Cherenkov Telescope, an end-to end Schwarzschild-Couder telescope prototype proposed for the Cherenkov Telescope Array

The cosmic-ray and gas content of the Cygnus region as measured inγ-rays by theFermiLarge Area Telescope

scientific article published in Astronomy and Astrophysics

The extreme microlensing event OGLE-2007-BLG-224: terrestrial parallax observation of a thick-disk brown dwarf ⬇️

scientific article published in the Astrophysical Journal

The first Fermi multifrequency campaign on BL Lacertae: characterizing the low-activity state of the eponymous blazar ⬇️

scientific article published in the Astrophysical Journal

The first Fermi-LAT catalog of sources above 10 GeV

scientific article

The first pulse of the extremely bright GRB 130427A: a test lab for synchrotron shocks.

scientific article

The large size telescope of the Cherenkov Telescope Array

The radio/gamma-ray connection in active galactic nuclei in the era of the Fermi Large Area Telescope ⬇️

scientific article published in the Astrophysical Journal

The second catalog of active galactic nuclei detected by the Fermi large area telescope

scientific article published in the Astrophysical Journal

Toward the construction of a medium size prototype Schwarzschild-Couder telescope for CTA

Unbound or distant planetary mass population detected by gravitational microlensing ⬇️

scientific article (publication date: 19 May 2011)

Using Muon Rings for the Calibration of the Cherenkov Telescope Array: A Systematic Review of the Method and Its Potential Accuracy

scholarly article

γ-RAY AND PARSEC-SCALE JET PROPERTIES OF A COMPLETE SAMPLE OF BLAZARS FROM THE MOJAVE PROGRAM ⬇️

scientific article published in the Astrophysical Journal

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