List of works - Akira Okumura

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

scientific article published in the Astrophysical Journal

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

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

scientific article published in the Astrophysical Journal

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

scientific article

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

scientific article published in the Astrophysical Journal

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

scientific article

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

scholarly article

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

scholarly article

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

scientific article published in Science

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

scientific article published in the Astrophysical Journal

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

scientific article published in Astronomy and Astrophysics

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

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

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

Search for dark matter satellites using Fermi-LAT

scientific article published in the Astrophysical Journal

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

scientific article published in Physical Review Letters

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

scientific article published in the Astrophysical Journal

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

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

scientific article published in Astronomy and Astrophysics

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

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

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

scientific article published in the Astrophysical Journal

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

scientific article published in Astronomy and Astrophysics

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

scientific article published in the Astrophysical Journal

Microlensing binaries with candidate brown dwarf companions

scientific article published in the Astrophysical Journal

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

scientific article

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

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

article published in 2010

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

scientific article published in the Astrophysical Journal

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

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

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

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

scientific article published in the Astrophysical Journal

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

scientific article published in the Astrophysical Journal

Microlensing binaries discovered through high-magnification channel

scientific article published in the Astrophysical Journal

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

scientific article published in the Astrophysical Journal

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

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

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: “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

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

scientific article published in the Astrophysical Journal

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

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

The large size telescope of 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

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

scholarly article

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

Detection of the Geminga pulsar at energies down to 20 GeV with the LST-1 of CTAO

scientific article published in June 2025

List of works by Akira Okumura

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Search for dark matter satellites using Fermi-LAT

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

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

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

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

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

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

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

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

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

Microlensing binaries with candidate brown dwarf companions

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

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

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

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

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

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

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

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

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

Microlensing binaries discovered through high-magnification channel

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

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

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

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

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

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

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

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

The large size telescope of 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

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

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

Detection of the Geminga pulsar at energies down to 20 GeV with the LST-1 of CTAO