Komaba Seminar

13:00, Aug. 7, 2023 (15th building 104)

Guest seminar

• Dr. Hiromichi Tagawa "銀河核円盤内で合体するブラックホールからの電磁放射"

Future plans

• Sep. 29 (15-104) Dr. Tsuna (Guest seminar)

13:00, Jul. 14, 2023 (15th building 104)

Regular seminar

• Kengo Shinoda "超新星フォールバックと親星水素外層の相関性"

Journal club

• Suzuki "Living With a Red Dwarf: The Rotation-Age Relationship of M Dwarfs"
• Tokuno "TESS Stellar Rotation up to 80 days in the Southern Continuous Viewing Zone"
• Sawada "Binary Interaction Can Yield a Diversity of Circumstellar Media around Type II Supernova Progenitors"
• Kakiuchi "Rotation measure variations in Galactic Centre pulsars"

13:00, Jul. 7, 2023 (15th building 104)

Regular seminar

• Ataru Tanikawa "Non-interacting black hole binary search with Gaia DR3"

Journal club

• Qu "A luminous precursor in the extremely bright GRB 230307A"

13:00, Jun. 30, 2023 (15th building 104)

Regular seminar

• Li Dong "The surface density evolution of protoplanetary discs considering the effects of disk wind and photoevaporation"

Journal club

• Suwa "Focus on NANOGrav's 15 yr Data Set and the Gravitational Wave Background"
• Suwa "Observation of high-energy neutrinos from the Galactic plane"
• Tokuno "An abrupt change in the stellar spin-down law at the fully convective boundary"
• Tokuno "A close-in giant planet escapes engulfment by its star"
• Suzuki "Spectral variability of photospheric radiation due to faculae I: The Sun and Sun-like stars"

13:00, Jun. 23, 2023 (15th building 104)

Regular seminar

• Tomoki Matsuoka "Theoretical modeling of double-peaked radio supernovae"

Journal club

• Shinoda "A metallicity dependence on the occurrence of core-collapse supernovae"
• Suwa "Far-Ultraviolet to Near-Infrared Observations of SN 2023ixf: A high energy explosion engulfed in complex circumstellar material"
• Suwa "The SN 2023ixf Progenitor in M101: I. Infrared Variability"
• Suwa "A calibration point for stellar evolution from massive star asteroseismology"

13:00, Jun. 16, 2023 (15th building 104)

Regular seminar

• Chushu Qu (Sojo) "研究報告"

Journal club

• Tokuno "Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin-Orbit Misalignments are Common"
• Kakiuchi "Report on Galactic Center Workshop 2023 at Granada, Spain"

13:00, Jun. 9, 2023 (15th building 104)

Regular seminar

• Hiroki Kawashimo "対不安定型超新星の^{56}Ni合成における^{12}C(\alpha,\gamma)^{16}Oおよび3\alpha反応率の効果"

Journal club

• Nakano "Population study on MHD wind-driven disc evolution -- Confronting theory and observation"
• Suwa "A metal-poor star with abundances from a pair-instability supernova"

13:00, Jun. 2, 2023 (16th building 802)

Regular seminar

• Eriko Hattori "白色矮星と中性子星の衝突の検証"

Journal club

• Tanaka "Quasinormal Modes for Dynamical Black Holes"
• Tokuno "New insights into the rotational evolution of near-solar age stars from the open cluster M67"
• Tanikawa "No Surviving SN Ia Companion In SNR 0509-67.5: Stellar Population Characterization and Comparison To Models"

13:00, May 26, 2023 (15th building 104)

Regular seminar

• Masahiko Akatsuka "Cylindrical Shearing Boxによる、原始惑星系円盤におけるMRI駆動乱流の解析"

Journal club (JC)

• Dong "Observability of Photoevaporation Signatures in the Dust Continuum Emission of Transition Discs"
• Tanikawa "The first massive compact companion in a wide orbit around a hot subdwarf star"

13:00, May 23, 2023 (15th building 104)

Guest seminar

• Dr. Gilles Ferrand "From the (thermonuclear) supernova to the supernova remnant"

13:00, May 19, 2023 (15th building 104)

Guest seminar

• Dr. Doris Arzoumanian "The role of hub-filament systems in the formation of low- to high-mass stars"

Future plans

13:00, May 12, 2023 (15th building 104)

Guest seminar

• Prof. Nobuyuki Kawai "可視光強度変動で探る高質量X線連星系"

13:00, Apr. 28, 2023

Regular seminar (RS)

• Yudai Suwa "From a protoneutron star to a neutron star: crust formation"

Journal club (JC)

• Kawashimo "Multiple channels for nitrogen pollution by metal enriched supermassive stars and implications for GN-z11"

13:00, Apr. 21, 2023

Regular seminar (RS)

• Kensuke Kakiuchi "Magnetic Activity in the Galactic Center Region" (“銀河系中心領域の磁気活動についての理論的研究")

Journal club (JC)

• Hattori "The evolutionary route to form planetary nebulae with central neutron star - white dwarf binaries"
• Suzuku "Report on PP7"

13:00, Apr. 7, 2023

Regular seminar (RS)

• Takeru K. Suzuki "Intermittent magnetic bursts in MRI turbulence"