HO
Hirokazu Odaka
astro-ph.HEastro-ph.IMastro-ph.GAhep-exastro-ph.COastro-ph.SRphysics.ins-detastro-phGamma Camerashep-ph
On Valency
published · living versionsW_4rs6dmcq·v1 · currentpublished
The peak-flux of GRB 221009A measured with GRBAlpha
with Jakub Ripa, Hiromitsu Takahashi, Yasushi Fukazawa, Norbert Werner +40
1 version
Preprints & journals
202 papers in the corpus · 2006–2026Charge Response Simulation of Liquid Argon Compton Cameras for Precise MeV Gamma-Ray Event Reconstruction2610.18107v1 · Shota Arai, Hirokazu Odaka, Satoshi Takashima et al.2026 · 0 citationsarXiv
The Geometry of Ultra-Fast Outflows Probed by Soft X-ray Variability in PDS 4562608.28034v1 · Riki Sato, Kouichi Hagino, Toshiya Iwata et al.2026 · 0 citationsarXiv
The Complete Catalog of Gamma-Ray Transients Observed by GRBAlpha & VZLUSAT-2 CubeSat Missions2607.17971v2 · Marianna Dafcikova, Jakub Ripa, Andras Pal et al.2026 · 0 citationsarXiv
Low-Noise SiPM Light Readout and ASIC-Based Charge Readout of a Liquid Argon Time Projection Chamber for MeV Gamma-Ray Measurements2607.11336v1 · Satoshi Takashima, Hirokazu Odaka, Shota Arai et al.2026 · 0 citationsarXiv
Long-term performance of SiPMs in space environment measured by GRBAlpha, GRBBeta, and VZLUSAT-2 CubeSats2607.06318v1 · Jakub Ripa, Filip Munz, Marianna Dafcikova et al.2026 · 0 citationsProc. SPIE 14146, Space Telescopes and Instrumentation 2026: Ultraviolet to Gamma Ray, 1414657
Chemical enrichment of the Perseus cluster core seen by XRISM/Resolve2606.17141v3 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2026 · 1 citationarXiv
The line modulations of H-like Fe, Ca, Ar, and S observed with /Resolve in Cyg X-32604.23185v1 · Tomohiro Hakamata, Hirokazu Odaka, Ryota Tomaru et al.2026 · 0 citationsarXiv
A XRISM Study of Highly Ionized Iron Emission Lines from the Low-Eddington-ratio AGN in NGC 72132604.16196v1 · Kaito Murakami, Taiki Kawamuro, Ryota Tomaru et al.2026 · 0 citationsarXiv
A Fast, Hot Wind from a Nuclear Starburst2603.24674v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2026 · 0 citationsNature, March 25, 2026
High Spectral Resolution X-ray Observations of the Evolved Supermassive Stellar Binary System Carinae - Iron K Band Profile Revealed with XRISM2602.22476v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2026 · 2 citationsarXiv
In-orbit Demonstration of X-ray Pulsar Navigation with NinjaSat2602.14166v1 · Naoyuki Ota, Takuya Takahashi, Toru Tamagawa et al.2026 · 0 citationsarXiv
Unification Model of Active Galactic Nuclei by Photoionization Equilibrium Calculation Based on Radiative Hydrodynamic Simulations2602.11474v1 · Atsushi Tanimoto, Keiichi Wada, Yuki Kudoh et al.2026 · 0 citationsarXiv
GRBAlpha, VZLUSAT-2 and GRBBeta -- GRB observations with CubeSats2601.16609v1 · Jakub Ripa, Marianna Dafcikova, Andras Pal et al.2026 · 0 citationsarXiv
Possible time-variable iron-K emission in the circumnuclear region of the Circinus galaxy2601.13660v2 · Aiko Miyamoto, Taiki Kawamuro, Hirokazu Odaka et al.2026 · 0 citationsarXiv
X-ray Analysis and Photon-transport Simulations of SMC X-1: A Warped-disc Origin of the Superorbital Modulation2601.13978v1 · Satoshi Takashima, Hirokazu Odaka, Ryota Tomaru et al.2026 · 0 citationsarXiv
A XRISM/Resolve view of the dynamics in the hot gaseous atmosphere of M872512.06596v1 · M. Audard, H. Awaki, R. Ballhausen et al.2025 · 7 citationsarXiv
Pile-up simulator for XRISM/Xtend onboard the X-ray Imaging and Spectroscopy Mission (XRISM)2511.19967v1 · Tomokage Yoneyama, Tsubasa Tamba, Hirokazu Odaka et al.2025 · 0 citationsarXiv
XRISM constraints on unidentified X-ray emission lines, including the 3.5 keV line, in the stacked spectrum of ten galaxy clusters2510.24560v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 0 citationsarXiv
Emission and Absorption Features of Magnetically Driven Disk Winds in Black Hole X-Ray Binaries2510.24844v1 · Atsushi Tanimoto, Keigo Fukumura, Shoji Ogawa et al.2025 · 0 citationsarXiv
XRISM/Resolve reveals the complex iron structure of NGC 7213: Evidence for radial stratification between inner disk and broad-line region2510.24971v1 · E. Kammoun, T. Kawamuro, K. Murakami et al.2025 · 6 citationsarXiv
Comparing XRISM cluster velocity dispersions with predictions from cosmological simulations: are feedback models too ejective?2510.06322v2 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 10 citationsarXiv
The detection of high X-ray polarization from an accretion disc corona source and its modelling via Monte Carlo radiation transfer simulation2509.26147v2 · Ryota Tomaru, Chris Done, Hirokazu Odaka2025 · 1 citationarXiv
Stratified wind from a super-Eddington X-ray binary is slower than expected2509.14555v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 12 citationsarXiv
Development of Solar Flare X-ray Polarimeter with Micro-Pixel CMOS Sensors2509.03914v1 · Kouichi Hagino, Tatsuaki Kato, Toshiya Iwata et al.2025 · 0 citationsarXiv
Disentangling Multiple Gas Kinematic Drivers in the Perseus Galaxy Cluster2509.04421v2 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 14 citationsarXiv
XRISM/Resolve View of Abell 2319: Turbulence, Sloshing, and ICM Dynamics2508.05067v3 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 6 citationsarXiv
Unraveling the structure of the stratified ultra-fast outflows in PDS 456 with XRISM2506.05273v3 · Yerong Xu, Luigi C. Gallo, Kouichi Hagino et al.2025 · 12 citationsarXiv
XRISM spectroscopy on orbital modulation of Fe Ly lines in Cygnus X-32505.09890v1 · Daiki Miura, Hiroya Yamaguchi, Ralf Ballhausen et al.2025 · 2 citationsarXiv
X-Ray Radiative Transfer Calculation Based on a Physics-based Model of the Sub-parsec-scale Gases around an Active Galactic Nucleus and Its Application to NGC 37832505.09693v1 · Atsushi Tanimoto, Keiichi Wada, Hirokazu Odaka et al.2025 · 2 citationsarXiv
Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM2505.06533v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 21 citationsarXiv
XRISM forecast for the Coma cluster: stormy, with a steep power spectrum2504.20928v1 · Marc Audard, Hisamitsu Awaki, Ralf Ballhausen et al.2025 · 32 citationsarXiv
The nature of spectral variability of the accreting pulsar Centaurus X-3 unveiled by NuSTAR observation covering two orbital cycles2504.10670v1 · Tsubasa Tamba, Hirokazu Odaka, Atsushi Tanimoto et al.2025 · 2 citationsarXiv
The Moon as a Cosmic-Ray Spectrometer: Prospects for MeV Gamma-Ray Observations2504.07195v2 · Tatsuki Fujiwara, Ellis R. Owen, Yoshiyuki Inoue et al.2025 · 3 citationsarXiv
In-orbit Performance of the Soft X-ray Imaging Telescope Xtend aboard XRISM2503.20180v1 · Hiroyuki Uchida, Koji Mori, Hiroshi Tomida et al.2025 · 18 citationsarXiv
Antihelium-3 Sensitivity for the GRAMS Experiment2503.16694v3 · J. Zeng, T. Aramaki, K. Aoyama et al.2025 · 0 citationsAstroparticle Physics 173 (2025) 103152
Soft X-ray Imager of the Xtend system onboard XRISM2502.08030v1 · Hirofumi Noda, Koji Mori, Hiroshi Tomida et al.2025 · 0 citationsarXiv
NuSTAR detection of a hot stellar superflare with a temperature of 95 MK in hard X-rays2501.16710v1 · Tomohiro Hakamata, Hironori Matsumoto, Hirokazu Odaka et al.2025 · 2 citationsarXiv
NinjaSat: Astronomical X-ray CubeSat Observatory2412.03016v1 · Toru Tamagawa, Teruaki Enoto, Takao Kitaguchi et al.2024 · 9 citationsPublications of the Astronomical Society of Japan 77, 466-479 (2025)
NinjaSat monitoring of Type-I X-ray bursts from the clocked burster SRGA J144459.2$-$6042072411.10992v2 · Tomoshi Takeda, Toru Tamagawa, Teruaki Enoto et al.2024 · 11 citationsPublications of the Astronomical Society of Japan 77 (2025)
Characterization of more than three years of in-orbit radiation damage of SiPMs on GRBAlpha and VZLUSAT-2 CubeSats2411.00607v2 · Jakub Ripa, Marianna Dafcikova, Pavel Kosik et al.2024 · 3 citationsNuclear Instruments and Methods in Physics Research A, 1076 (2025), 170513
First operation of LArTPC in the stratosphere as an engineering GRAMS balloon flight (eGRAMS)2409.13209v2 · R. Nakajima, S. Arai, K. Aoyama et al.2024 · 3 citationsProgress of Theoretical and Experimental Physics, Volume 2024, Issue 12, December 2024, 123F01
Imaging reconstruction method on X-ray data of CMOS polarimeter combined with coded aperture2407.05443v1 · Tsubasa Tamba, Hirokazu Odaka, Taihei Watanabe et al.2024 · 1 citationarXiv
Initial operations of the Soft X-ray Imager onboard XRISM2406.19910v2 · Hiromasa Suzuki, Tomokage Yoneyama, Shogo B. Kobayashi et al.2024 · 2 citationsarXiv
Status of Xtend telescope onboard X-Ray Imaging and Spectroscopy Mission (XRISM)2406.19911v1 · Koji Mori, Hiroshi Tomida, Hiroshi Nakajima et al.2024 · 8 citationsarXiv
Multi-epoch X-ray spectral analysis of Centaurus A: revealing new constraints on iron emission line origins2406.14488v1 · Toshiya Iwata, Atsushi Tanimoto, Hirokazu Odaka et al.2024 · 3 citationsarXiv
Development of the X-ray polarimeter using CMOS imager: polarization sensitivity of a pixel CMOS sensor2405.18907v1 · Toshiya Iwata, Kouichi Hagino, Hirokazu Odaka et al.2024 · 3 citationsarXiv
Possible Supercritical Accretion on the ULX in the Metal-poor Galaxy IZw182405.13107v1 · Marina Yoshimoto, Tomokage Yoneyama, Hirofumi Noda et al.2024 · 0 citationsarXiv
Measurement of Temperature Relaxation in the Postshock Plasma of the Northwestern Limb of SN 10062405.09040v1 · Masahiro Ichihashi, Aya Bamba, Yuichi Kato et al.2024 · 2 citationsarXiv
Spectral Modeling of the Supersoft X-ray Source CAL87 based on Radiative Transfer Codes2311.06492v1 · Masahiro Tsujimoto, Misaki Mizumoto, Ken Ebisawa et al.2023 · 3 citationsarXiv
Circumnuclear Multi-phase Gas in the Circinus Galaxy. V. The Origin of the X-Ray Polarization in the Circinus Galaxy2310.18396v1 · Atsushi Tanimoto, Keiichi Wada, Yuki Kudoh et al.2023 · 12 citationsarXiv
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