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List of works by Katsuji Koyama

A Chandrasekhar mass progenitor for the Type Ia supernova remnant 3C 397 from the enhanced abundances of nickel and manganese ⬇️

article

A High-Resolution Very Large Array Observation of a Protostar in OMC-3: Shock-Induced X-Ray Emission by a Protostellar Jet

scholarly article

A Joint Suzaku and Chandra Spectroscopy Study of Hard X-Ray Emission from the Arches Cluster

A New Aspect of Galactic Ridge X-ray Emission: — SNRS in a Tenuous Medium? —

scholarly article

A Study of the Populations of X‐Ray Sources in the Small Magellanic Cloud withASCA

A Systematic Study of X-Ray Flares from Low-Mass Young Stellar Objects in the $\rho$ Ophiuchi Star-Forming Region with Chandra

scholarly article

ASCA Discovery of a Be X-Ray Pulsar in the SMC: AX J0051–733

scholarly article

ASCA Observation of NGC 1808

ASCA Observations of Eta Carinae

article

ASCA Observations of the Twin Supernova Remnants in the Large Magellanic Cloud, DEM L316

ASCADiscovery of Diffuse 6.4 keV Emission near the Sagittarius C Complex: A New X‐Ray Reflection Nebula ⬇️

scientific article published in the Astrophysical Journal

ASCAX‐Ray Spectroscopy of Large Magellanic Cloud Supernova Remnants and the Metal Abundances of the Large Magellanic Cloud ⬇️

scientific article published in the Astrophysical Journal

An IRAS-Selected Seyfert 2 Galaxy IRAS 18325-5926: The X-Ray Source and Nuclear Obscuration

scientific article published in Astronomical Journal

Atmospheric gas dynamics in the Perseus cluster observed with Hitomi*

Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi*

ChandraandASCAObservations of the X‐Ray–brightest T Tauri Stars in the ρ Ophiuchi Cloud ⬇️

scientific article published in the Astrophysical Journal

Charge diffusion and loss as a function of absorption depth in x-ray CCD

Deep Near-Infrared Observations and Identifications of [ITAL]Chandra[/ITAL] Sources in Orion Molecular Clouds 2 and 3

scientific article published in Astronomical Journal

Deep Near‐Infrared Observations of the X‐Ray–emitting Class 0 Protostar Candidates in the Orion Molecular Cloud 3 ⬇️

scientific article published in the Astrophysical Journal

Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector†

Development of an n-channel CCD, CCD-NeXT1, for Soft X-ray Imager onboard the NeXT satellite

scientific article published in 2007

Discovery of a New X-Ray Pulsar, AX J0049-729, in the Small Magellanic Cloud with ASCA

Discovery of an X-Ray Pulsar in the SMC: AX J0058-7203

Erratum: “X‐Ray Detection from Bona Fide and Candidate Brown Dwarfs in the ρ Ophiuchi Cloud withChandra” (ApJ, 563, 361 [2001])

scientific article published in the Astrophysical Journal

Erratum: “X‐Ray Properties of Young Stellar Objects in OMC‐2 and OMC‐3 from theChandra X‐Ray Observatory” (ApJ, 566, 974 [2002])

scientific article published in the Astrophysical Journal

Fitting method for analyzing polarized x-rays on CCD camera

Glimpse of the highly obscured HMXB IGR J16318−4848 with Hitomi*

High Energy Activities of Our Galactic Center and Its Environment ⬇️

scholarly article

Hitomi X-ray observation of the pulsar wind nebula G21.5−0.9

scientific article published in January 2018

Hitomi X-ray studies of giant radio pulses from the Crab pulsar*

scientific article published on 01 April 2018

Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-Kα line emission from an active galactic nucleus*

Hitomi observations of the LMC SNR N 132 D: Highly redshifted X-ray emission from iron ejecta*

Iron Emission Lines on the Galactic Ridge Observed with Suzaku

scholarly article

Iron Line Emission from NGC1068

scholarly article

Iron distribution in the intracluster gas of the Virgo cluster of galaxies

scientific article published in Nature

Large X‐Ray Flare from the Herbig Be Star MWC 297 ⬇️

scientific article published in the Astrophysical Journal

Measurement of Low-Energy Cosmic Rays via the Neutral Iron Line

scholarly article

Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS*

Measuring the Broad-Band X-Ray Spectrum from 400eV to 40keV in the Southwest Part of the Supernova Remnant RXJ1713.7$-$3946

Millenium Study of SN 1006 with Suzaku

Oxygen line mapping of SN 1006 with Suzaku

Performance of back supportless CCDs for the NeXT mission

scientific article published in 2005

Rapid variability of the iron fluorescence line from the Seyfert 1 galaxy NGC6814

scientific article published in Nature

Review of Discrete X-Ray Sources in the Small Magellanic Cloud: Summary of the ASCA Results and Implication on the Recent Star-Forming Activity

article

Search for thermal X-ray features from the Crab nebula with the Hitomi soft X-ray spectrometer*

Spectral Study of the Galactic Ridge X-Ray Emission with Suzaku

Suzaku Detection of Extended/Diffuse Hard X-Ray Emission from the Galactic Center

scholarly article

Suzaku Wide-Band Observations of SN 1006

Temperature structure in the Perseus cluster core observed with Hitomi*

The ASTRO-H (Hitomi) x-ray astronomy satellite

The ASTRO-H Mission

The ASTRO-H X-ray Observatory

The ASTRO-H X-ray astronomy satellite ⬇️

The NeXT Mission

article

Wide band X-ray Imager (WXI) and Soft Gamma-ray Detector (SGD) for the NeXT Mission

X-Ray Observation of a Magnetized Hot Gas Outflow in the Galactic Center Region

X-Ray Observation on the Monoceros R2 Star-Forming Region with the Chandra ACIS-I Array

X‐Ray Detection from Bona Fide and Candidate Brown Dwarfs in the ρ Ophiuchi Cloud withChandra ⬇️

scientific article published in the Astrophysical Journal

X‐Ray Properties of Young Stellar Objects in OMC‐2 and OMC‐3 from theChandraX‐Ray Observatory ⬇️

scientific article published in the Astrophysical Journal

X‐Ray Sources and Star Formation Activity in the Sagittarius B2 Cloud Observed withChandra ⬇️

scientific article published in the Astrophysical Journal

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