GRB seminar log (Apr. 2026-)

各地の研究拠点を結ぶオンライン会議。突発天体・高エネルギー天体の研究・情報を速報で共有する。

• 日時：毎週火曜日 午後12時00分より
• 場所：zoomでの開催
  
• 司会：西浦怜(天体核D2）（2024年度後期〜） ← 後藤瞭太(東大宇宙線研D3）（2024年度〜） ← 和田知己(東大宇宙線) (2022年度〜) ← 高橋和也(基研PD）（2018年度〜） ← 松本達矢(天体核D3)（2017年度）

2026/7/21

論文紹介

• Non-thermal emission from the vicinity of the magnetar CXOU J171405.7-381031(霜田)
  [arXiv:2607.15955]
• The JADES Transient Survey II: Volumetric Supernova Rates out to z~5(鈴木昭)
  [arXiv:2607.12018]
• Gamma-ray bursts reveal the history and faint contributors of cosmic reionization(鈴木昭)
  [arXiv:2607.07610]
• Einstein Probe Fast X-ray Transients Extend the Physical Parameter Space of Relativistic Jets(Hamidani)
  [arXiv:2607.14317]
• A spectacular multi-wavelength transient associated with an off-axis relativistic jet(井岡)
  [arXiv:2607.10047]

2026/7/14

論文紹介

• Magnetar-like X-ray bursts suppress pulsar radio emission(西浦)
  [arXiv:1710.03718]
• Energy functions of fast radio bursts derived from the first CHIME/FRB catalogue(西浦)
  [arXiv:2201.03574]
• Are persistent emission luminosity and rotation measure of fast radio bursts related?(西浦)
  [arXiv:2001.10761]
• Preferential Occurrence of Fast Radio Bursts in Massive Star-Forming Galaxies(西浦)
  [arXiv:2409.16964]
• No Metallicity Preference in Fast Radio Burst Host Galaxies(西浦)
  [arXiv:2508.07688]
• FRB scattering statistics through the CGM are sensitive to morphology and intermittency(西浦)
  [arXiv:2603.00336]
• The Role of Plasma Lensing in Fast Radio Bursts(西浦)
  [arXiv:2601.11122]
• Fast Radio Bursts Trace Cosmic Star Formation with Little Delay(霜田)
  [arXiv:2607.09109]
• Evidence for a Delayed Progenitor Population for CHIME non-repeating Fast Radio Bursts using a Self-Consistent Forward and Backward Inference Framework(霜田)
  [arXiv:2607.04792]
• Supersonic Motion in the Driving Region of M82(霜田)
  [arXiv:2607.07782]
• AT2019ijn: a fast-rising, slow-decaying blue optical transient with exceptionally bright radio emission(Hamidani)
  [arXiv:2607.11545]
• Radio Observations of the Unusual Tidal Disruption Event AT 2022wtn: a Fast and Highly Energetic Outflow(井岡)
  [arXiv:2607.06777]
• Little Red Dots at z~2 in EIGER reveal a gentle decline with respect to their peak number density at z~5(井岡)
  [arXiv:2607.00084]
• Spatial decomposition of Little Red Dots with JWST/NIRSpec IFU into broad-line red cores and narrow-line blue host galaxies(井岡)
  [arXiv:2607.09647]

研究会紹介

• Fast Radio Burst 2026 (西浦)
  [Conference Link]

2026/7/7

論文紹介

• A Unified Ionization Framework for the Spectroscopic Diversity of Tidal Disruption Events(松本)
  [arXiv:2606.09325]
• The Light Curve of Wind-Reprocessed Tidal Disruption Events(松本)
  [arXiv:2606.11378]
• A Suppressed Volumetric Rate of High-Luminosity Mid-Infrared Selected Tidal Disruption Events(松本)
  [arXiv:2606.31926]
• The properties of tidal disruption event infrared counterparts produced by dust rings and inference of the observing angle(松本)
  [arXiv:2606.17230]
• High-Energy Neutrino Tomography of the Earth's Interior with IceCube(井上進)
  [arXiv:2607.02644]
• Little Red Dots at z~2 in EIGER reveal a gentle decline with respect to their peak number density at z~5(井岡)
  [arXiv:2607.00084]
• No evolution in the number density of little red dots from cosmic dawn to cosmic noon(井岡)
  [arXiv:2606.30253]
• The metallicities of little red dot host galaxies: LRDs are metal poor, but not pristine(井岡)
  [arXiv:2606.31515]
• Little Red Dots as Intermediate Mass, Super-Eddington Engines: Insights from Type IIn Supernovae and The 1837-1856 Great Eruption of $η$ Carinae(井岡)
  [arXiv:2606.30711]
• Estimating Cosmological Parameters from Localized Fast Radio Bursts: A Method for Removing Milky Way Dispersion-Measure Contributions(井岡)
  [arXiv:2606.29761]
• Pulsed Infrared Emission from Magnetar 4U 0142+61 Detected by JWST(井岡)
  [arXiv:2606.29653]
• The Rubin Observatory Target-of-Opportunity System in the First Year of Operations(井岡)
  [arXiv:2607.00217]
• FRB20250613A: a remarkable repeating FRB with apparent millisecond-timescale scattering variations(井岡)
  [arXiv:2607.00505]
• First Gamma-Ray Burst Observations with SVOM(井岡)
  [arXiv:2607.01090]

2026/6/30

論文紹介

• Gamma-ray Bursts in the Radio Sky: the Role of the SKA-VLBI(霜田)
  [arXiv:2606.27434]
• Supernovae with the Square Kilometre Array(霜田)
  [arXiv:2606.25223]
• Deep HI observations of cold gas inflow and outflow(霜田)
  [arXiv:2606.28150]
• 3D Magnetic Field Vectors in Space: Bubbles, Clouds, and Filaments(霜田)
  [arXiv:2606.27346]
• A 3D tomography of the Local Bubble with SKA-Low(霜田)
  [arXiv:2606.25594]
• Supernova remnants in the new radio astronomy era(霜田)
  [arXiv:2606.26889]
• HI Galaxy Science with the SKA(霜田)
  [arXiv:2606.26999]
• Instabilities at recollimation shocks in MHD jets(水田)
  [arXiv:2510.01742]
• 2D magnetohydrodynamic jet simulations: properties of recollimation shocks(水田)
  [arXiv:2606.19153]
• JWST observations of SN 2024abup: First Detection of CO in a broad-lined Type Ic Supernova and Constraints on r-process Nucleosynthesis(Hamidani)
  [arXiv:2606.28561]
• Debiasing the Observed Fast Radio Burst Population with the CHIME/FRB Selection Function(井岡)
  [arXiv:2606.26334]
• EP251023a: A fast X-ray transient featuring a magnetar-powered optical internal plateau followed by a steep decay(井岡)
  [arXiv:2606.24329]
• Constraints on the Gas Geometry Surrounding Little Red Dots through Narrow-Line Diagnostics(井岡)
  [arXiv:2606.23778]
• Old and Bright: The Remarkable Radio Brightening of the Engine-driven SN 2012au Several Years After Explosion Signals the Birth of a PWN(井岡)
  [arXiv:2606.20836]
• The unusual X-ray emission of the short Swift GRB 090515: Evidence for the formation of a magnetar?(井上進)
  [arXiv:1007.2185]
• The Second Plateau in X-ray Afterglow Providing Additional Evidence for Rapidly Spinning Magnetars as the GRB Central Engine(山崎)
  [arXiv:2005.00768]
• AI Scientists as Engines of Discovery: A Case for Development within Reformed Institutions(井岡)
  [arXiv:2606.22859]

2026/6/23

論文紹介

• Supernova Remnants in the IXPE era: a review(霜田)
  [arXiv:2606.19979]
• Ages of the resolved stellar populations inside the JWST/MIRI bubbles in NGC 628(霜田)
  [arXiv:2606.19248]
• A Long Period Stellar-Mass Black Hole Binary in $ω$ Centauri(谷川)
  [arXiv:2606.18350]
• Late-time JWST/NIRCam Observations of the Extremely Long-duration GRB 250702B/EP 250702a and Its Host Galaxy(井岡)
  [arXiv:2606.18353]
• Compact Core, Extended Reach: A Bipolar kpc-Scale Elongation in a Little Red Dot at $z \approx 5.5$(井岡)
  [arXiv:2606.18342]
• Discovery of a Supernova Following the Einstein Probe Transient EP250302a at z = 1.131(井岡)
  [arXiv:2606.17170]
• Decadal pre-explosion activity and circumstellar interaction in a supernova(Hamidani)
  [arXiv:2606.10009]

2026/6/16

論文紹介

• Distinct Gas and Stellar Circular Rotation Curves in the Milky Way Galaxy(霜田)
  [arXiv:2606.11872]
• SN 1006: A Cosmic Laboratory for Investigating Shock Acceleration Physics(霜田)
  [arXiv:2606.12111]
• EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-Lined Supernova(Hamidani)
  [arXiv:2606.09992]
• Thermal X-rays breaking out from pre-explosion ejecta of a dying massive star(Hamidani)
  [arXiv:2606.10014]
• Failed jet breakout in the metal-poor broad-lined type Ic supernova 2026gzf(Hamidani)
  [arXiv:2606.10002]
• A Scaling Relation of LRDs between Broad H$α$ and Bolometric Luminosities: Enhanced Broad H$α$ Emission Relative to Low-$z$ Type 1 AGN(井岡)
  [arXiv:2606.09726]
• Through the Veil: Ly$α$ Illuminates the Host Galaxies of Little Red Dots(井岡)
  [arXiv:2606.09970]
• NEXUS: Abundance, Environments, and Spectral Diversity of Little Red Dots from the NIRSpec MSA Sample(井岡)
  [arXiv:2606.09721]
• TBD LBD: The nature of `little blue dots'(井岡)
  [arXiv:2606.12509]
• A magnetar formation in binary neutron star merger(井岡)
  [arXiv:2606.11299]
• Radio precursors of monster shocks: a mechanism for fast radio bursts from SGR 1935+2154(井岡)
  [arXiv:2606.10189]
• AI can help scientists publish less(井岡)
  [arXiv:2606.13829]

2026/6/9

論文紹介

• Future landscape of astrophysical transients(鈴木)
  [Link]
• An energetic dirty fireball detected in soft X-rays(Hamidani)
  [arXiv:2603.26213]
• JWST reveals a supernova following a gamma-ray burst at z $\simeq$ 7.3(Hamidani)
  [arXiv:2507.18784]
• Relativistic electron acceleration at the bow shock of Jupiter and beyond (井上進)
  [Nature]
• PSF-like Alpha-Particle Events in LSST Images(Hamidani)
  [arXiv:2606.01295]
• Probing a new subclass of llGRB-SN transients: Insights from EP250304a and its associated supernova(井岡)
  [arXiv:2606.06213]
• Early Multiwavelength Observations of AT 2026fgk: The Luminous Afterglow to Sub-luminous GRB 260310A, Identified Independently of a Gamma-ray Trigger(井岡)
  [arXiv:2606.05146]
• A series of unfortunate events: CHIME/FRB misclassification of a Galactic pulsar as a periodic fast radio burst(井岡)
  [arXiv:2606.07087]
• OCEANS of Absorption: High-resolution NIRSpec Spectroscopy Reveals Diverse Balmer-line Absorption in Little Red Dots(井岡)
  [arXiv:2606.00258]
• ABCD: The Nuclear Structure of the Little Red Dots Revealted through Absorption, Break, Continuum, and Decrement(井岡)
  [arXiv:2606.04711]
• The UV Side of Little Red Dots: Red, Compact, and Iron-Enhanced Rest-UV Emission with a Strong Downturn around Ly$α$(井岡)
  [arXiv:2606.03522]
• The quasi-star model for Little Red Dots: potential and challenges(井岡)
  [arXiv:2606.06575]
• A Population of Red Galaxies with Very Strong Emission Lines at $z > 5$ Revealed by the NIRCam Medium Bands: ''Classic'' LRDs, Dusty Star-Forming Galaxies, and a Missing Population of LRDs(井岡)
  [arXiv:2606.06585]
• Fast-spinning massive black holes from slowly rotating low-metallicity stars: implications for GW231123(井岡)
  [arXiv:2606.04428]

2026/6/2

論文紹介

• Extreme Galaxy-scale Outflows Are Frequent among Luminous Early Quasars(井上進)
  [arXiv:2509.08793]
• Gamma-ray signature of superluminous supernovae: Fermi-LAT GeV detection of SN 2017egm and evidence of a central engine(Hamidani)
  [arXiv:2605.29909]
• Evidence for GeV emission of the superluminous supernova SN 2017egm(Hamidani)
  [arXiv:2407.05968]
• Inside the cocoon: a comprehensive explanation of the spectra of Little Red Dots(Hamidani)
  [arXiv:2601.18864]
• A formation scenario of black hole-envelope systems --viscous hydrodynamics simulation in general relativity--(井岡)
  [arXiv:2605.24087]
• Double Dots: Compact Pairs Mark Little Red Dots and High-Redshift Broad-line AGNs(井岡)
  [arXiv:2605.27903]
• GWTC-5.0: An Introduction to Version 5.0 of the Gravitational-Wave Transient Catalog(井岡)
  [arXiv:2605.27223]
• GWTC-5.0: Population Properties of Merging Compact Binaries(井岡)
  [arXiv:2605.27226]
• Self-acceleration of Hardening Binaries(井岡)
  [arXiv:2605.00976]

2026/5/26

論文紹介

• GRB 260310A/SN 2026fgk: Photometric and Spectroscopic Evolution of a Nearby GRB-Supernova and an Exceptionally Bright Afterglow at z=0.153(Hamidani)
  [arXiv:2605.18973]
• An extremely bright slow-rising afterglow from an off-axis jet in GRB 260310A(Hamidani)
  [arXiv:2605.23818]
• An Ultra-Faint, Chemically Primitive Galaxy Forming in the Reionization Era(井上進)
  [arXiv:2506.11846]
• A new sample of Little Red Dots at $z<0.45$ in DESI DR1: Broad Balmer lines, low ionization spectrum and no variability(井岡)
  [arXiv:2605.14233]
• (LRDs)$^2$: The Low-ReDshift Little Red Dots Survey. II. DESI DR1 Sample(井岡)
  [arXiv:2605.21574]
• A Magnetized Black Hole Envelope Model for Little Red Dots(井岡)
  [arXiv:2605.21589]
• On the quenching of LRD X-ray emission by both Compton-thick gas and high accretion rates(井岡)
  [arXiv:2605.15263]
• A 4200-hour HyperFlash and ÉCLAT campaign on the hyperactive FRB 20240114A: constraining energetics with the most brilliant bursts(井岡)
  [arXiv:2605.18513]
• Discovery of 30 Repeating Fast Radio Burst Sources and Uniform Population Statistics of 80 Repeating Sources from CHIME/FRB(井岡)
  [arXiv:2605.08410]
• Revisiting GW170817 at milliarcsecond scale: high-precision constraints on jet geometry and $H_0$(井岡)
  [arXiv:2605.11437]
• The Very Late Time Afterglow of GW170817 Favors a Wobbling Jet(井岡)
  [arXiv:2605.13719]
• Correlation Between X-Ray and Cosmic Neutrino Sources: From Obscured AGN to Blazars(井岡)
  [arXiv:2605.15360]

2026/5/12

論文紹介

• Type Ib Supernovae are bluer than Type Ic Supernovae(Hamidani)
  [arXiv:2605.01200]
• Evidence for GeV emission of the superluminous supernova SN 2017egm(村瀬)
  [arXiv:2407.05968]
• On the Gamma-ray Efficiency of Superluminous Supernovae: Potential Detections and Population-Level Constraints(村瀬)
  [arXiv:2604.16595]
• The GlimmIr: Spectroscopic Variability in a z~7 LRD Indicates Rapid Changes in Both the Narrow and Broad Line Regions(井岡)
  [arXiv:2604.25991]
• XRF 241001A/SN 2024aiiq: A Faint Soft X-ray Transient Detected by SVOM with a Broad-Line Type Ic Supernova Revealed by JWST(井岡)
  [arXiv:2604.20346]
• On the polarization position angle jumps in FRB 20240114A(井岡)
  [arXiv:2604.28012]
• Backlighting the Cosmic Web with Fast Radio Bursts: An Anthology of Dispersion Measure Cross-Correlations with Large-Scale Structure and Baryon Tracers(井岡)
  [arXiv:2604.22105]
• Baryons in the Darkest Sites of the Universe(井岡)
  [arXiv:2605.01994]
• Self-acceleration of Hardening Binaries(井岡)
  [arXiv:2605.00976]

2026/4/28

論文紹介

• From Internal Collision to Photon Escape: First-Principles Modeling of Radiation-Mediated Shocks in Gamma-Ray Burst Photospheres(松井)
  [arXiv:2604.07453]
• Ultra-high-energy $γ$-ray imprints from PeV particles accelerated by supernova remnants(霜田)
  [arXiv:2604.22621]
• Variability of Sagittarius A* at 3 GHz on minute-scale with MeerKAT(霜田)
  [arXiv:2604.22638]
• An Archival Optical Counterpart Search for Extragalactic Fast X-Ray Transients Discovered by Einstein Probe(Hamidani)
  [arXiv:2602.06321]
• XRF 241001A/SN 2024aiiq: A Faint Soft X-ray Transient Detected by SVOM with a Broad-Line Type Ic Supernova Revealed by JWST(Hamidani)
  [arXiv:2604.20346]
• Multi-wavelength study of EP250416a / GRB 250416C: An Optically Dark Long GRB with a Late Jet Break(Hamidani)
  [arXiv:2604.21624]

2026/4/21

論文紹介

• Detection of the optical counterpart of the transient ULX NGC300 ULX-1: a nascent black hole - neutron star binary?(鈴木)
  [arXiv:2503.02120]
• JWST spectroscopy of SN 2010da/NGC 300 ULX-1: a surviving star hidden by dust(鈴木)
  [arXiv:2604.13711]
• GRB 210704A: A Luminous Fast Blue Transient in a GRB Afterglow at $z = 2.34$(Hamidani)
  [arXiv:2604.14343]
• A fast X-ray transient with chromatic flares: signatures of violent collisions induced by late-time central engine reactivation(Hamidani)
  [arXiv:2604.14341]
• The Cliff: A Metal-Poor Little Red Dot Hosting an Overmassive Black Hole at $z = 3.55$(井岡)
  [arXiv:2604.09177]
• How I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE(井岡)
  [arXiv:2604.13000]
• Discovery of low-redshift analogues to "Little Red Dots" in DESI: A later evolutionary stage of compact LRDs?(井岡)
  [arXiv:2604.14551]
• Euclid: Scaled-up little red dots and other sources with v-shaped spectral energy distributions at z>4(井岡)
  [arXiv:2604.16178]
• Joint Observation of SGR J1935+2154 with \textit{Insight}-HXMT and KM40m during the active episode of October 2022(井岡)
  [arXiv:2604.10131]
• Gardening on the Moon: An Advection-Diffusion Model to Guide the Search for Supernova Debris in the Lunar Regolith(井岡)
  [arXiv:2604.09524]

2026/4/14

論文紹介

• A Unified Model for Shock Interaction and $γ$-Ray Emission in Classical Novae(松本)
  [arXiv:2604.06310]
• GLIMPSED: Direct evidence for a fast AGN-driven outflow from a z=6.64 Little Red Dot host galaxy(西浦)
  [arXiv:2604.08687]
• Neutron Star Merger Rates from Multi-messenger Observations: Clues to the Physical Origin of the Short and Long-short Gamma-ray Bursts(衣川)
  [arXiv:2604.06772]
• Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars(井岡)
  [arXiv:2604.05059]
• Wide Jets or Low Rates: Reconciling Short GRB and Gravitational-Wave Neutron Star Merger Rates(井岡)
  [arXiv:2604.05046]
• The Jet Opening Angle and Event Rate Distributions of Short Gamma-ray Bursts from Late-time X-ray Afterglows(Hamidani)
  [arXiv:2210.05695]
• Wings of little dots: Exponential broad lines from a stratified BLR(井岡)
  [arXiv:2604.04216]
• SPURS: Evidence for Clumpy Neutral Envelopes and Ionized IGM Surrounding Little Red Dots in Abell 2744 from Ultra-Deep Rest-UV Spectroscopy(井岡)
  [arXiv:2604.03563]
• Holes in the BH$^\star$? AGN signatures in the FUV spectrum of a black-hole dominated Little Red Dot at $z=7.04$(井岡)
  [arXiv:2604.03370]
• Great Walls of Cosmic Baryons in the Northern Sky(井岡)
  [arXiv:2604.05093]
• GECAM discovery of a peculiar magnetar X-ray burst (MXB 221120) from SGR J1935+2154 associated with a fast radio burst(井岡)
  [arXiv:2604.02261]
• The host galaxies and merger environments of short and long gamma-ray bursts producing kilonovae(井岡)
  [arXiv:2604.06586]
• Probing the Planck scale with quantum computation(井岡)
  [arXiv:2604.06322]

2026/4/7

論文紹介

• Constraining the PeV gamma-ray emission zone of Cygnus X-3 with contemporaneous GeV timing and spectral observations(霜田)
  [arXiv:2604.04768]
• The Delay Time Distribution of Tidal Disruption Events(霜田)
  [arXiv:2604.04831]
• An Intertwined Short and Long GRB with 4-minute Separation(Hamidani)
  [arXiv:2603.28699]
• Relativistic \(^{56}\text{Ni}\) Decay Lines in GRB 221009A(Hamidani)
  [arXiv:2603.10151]
• Making a Short Gamma-Ray Burst from a Long one: Implications for the Nature of GRB 060614(Hamidani)
  [arXiv:0612238]
• There is a short gamma-ray burst prompt phase at the beginning of each long one(Hamidani)
  [arXiv:1408.1608]
• An energetic dirty fireball detected in soft X-rays(井岡)
  [arXiv:2603.26213]
• A PANORAMIC of UV-optical morphologies of "Little Red Dots": Two groups of LRDs distinguished by UV half-light radius(井岡)
  [arXiv:2603.24700]
• A Black Hole Star at Cosmic Noon: Extreme Balmer break, photospheric continuum, and broad absorption by thick winds in a Little Red Dot at z=1.7(井岡)
  [arXiv:2603.28335]
• Little Red and Blue Dots: simply stratified Broad Line Regions(井岡)
  [arXiv:2603.22277]
• A quasi-star is born: formation and evolution of accreting quasi-stars as a metallicity-independent pathway to Little Red Dots(井岡)
  [arXiv:2603.21714]

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