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）

2026/4/21

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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