Nancy Grace Roman Space Telecope: Challenge to Open New Vision of the Universe

Toru Yamada

Institute of Space and Astronautical Science, JAXA

The launch of the Nancy Grace Roman (*) Space Telescope (hereafter referred to as "Roman") is now just about two years away. Roman is NASA's next major astrophysics mission following the James Webb Space Telescope. It features a 2.4-meter aperture optical telescope and a wide-field near-infrared imaging and spectroscopic instrument...

Star formation induced by cloud-cloud collisions in nearby barred galaxies

Yoshiomasa Watanabe

Sibaura Institute of Technology

More than 300 molecular species have been identified in the interstellar matter. These chemical compositions provide various insights into the physical condition of molecular gas, its surrounding environment, and its evolution in the star and planet formation studies in the Galaxy. Thanks to the recent high sensitivity and high spatial...

Formation of intermediate-mass black hole in forming star clusters

Michiko Fujii

The University of Tokyo

The existence of intermediate-mass black holes (IMBHs) in globular clusters has been debated. One possible way to form IMBHs in globular clusters is by repeating the merger of BHs in star clusters. However, gravitational-wave recoils kick the IMBHs out from the host globular clusters before they reach 500 Msun. Another...

Volume density structure of the NGC 253 CMZ through ALCHEMI excitation analysis: what is the critical difference between NGC253 and Milky Way?

Kunihiko Tanaka

Keio University

NGC 253 is an archetypal starburst galaxy in the nearby universe, whose relative proximity (D ~ 3.5 Mpc) makes it an ideal target for studying the physical and chemical environments conducive to highly active star formation (SF).　In particular, its similarity to the Milky Way (MW), traditionally understood as a quiescent...

すばる広視野サーベイとJWSTで見えてきた遠方超巨大ブラックホールの初期成長

Masafusa Onoue

Kavli IPMU

We present the latest observations of the early growth of active supermassive black holes (=quasars) in the early Universe, less than a billion years after the Big Bang, mainly using the Subaru Telescope and the James Webb Space Telescope (JWST). The search for distant quasars has been active since the...

磁気トルネード現象に注目した，太陽コロナ加熱のためのエネルギー発生・輸送・散逸の数値的研究

Hidetaka Kuniyoshi

University of Tokyo

The outermost atmosphere of the Sun (the corona) reaches temperatures hundreds of times hotter than its surface (the photosphere), exceeding 1 million degrees. This issue of solar corona heating has been an unresolved problem since the 1930s and is a main target of the SOLAR-C mission. Furthermore, the solar corona...

ALMA and JWST exploration of high-redshift galaxies (and stars)

Yoshinobu Fudamoto

Chiba University

Extragalactic astronomy is currently in an exciting period. Observing high-redshift galaxies allows us to directly see galaxies in the distant past, dating back to when the Universe was only nearly a few hundred million years old. This remarkable feature has led astronomers to dedicate significant efforts toward finding and studying...

Cloud-scale molecular gas properties of nearby spiral and starburst galaxies with ALMA

Toshiki Saito

National Astronomical Observatory of Japan

(Ultra)luminous infrared galaxies (= (U)LIRGs) at z=0 form stars 10-100 times more efficiently than z=0 main sequence (MS) galaxies, which is explained by nearby (U)LIRGs being gas-rich merging galaxies. Numerical simulations and sub-kpc observations clearly show that tidal interaction between gas-rich progenitors is condensing gas and triggering subsequent starburst activity...

148^th Uchu Forum Nancy Grace Roman Space Telecope: Challenge to Open New Vision of the Universe

Toru Yamada (Institute of Space and Astronautical Science, JAXA)

147^th Uchu Forum Star formation induced by cloud-cloud collisions in nearby barred galaxies

Yoshiomasa Watanabe (Sibaura Institute of Technology)

146^th Uchu Forum Formation of intermediate-mass black hole in forming star clusters

Michiko Fujii (The University of Tokyo)

145^th Uchu Forum Volume density structure of the NGC 253 CMZ through ALCHEMI excitation analysis: what is the critical difference between NGC253 and Milky Way?

Kunihiko Tanaka (Keio University)

144^th Uchu Forum すばる広視野サーベイとJWSTで見えてきた遠方超巨大ブラックホールの初期成長

Masafusa Onoue (Kavli IPMU)

143^rd Uchu Forum 磁気トルネード現象に注目した，太陽コロナ加熱のためのエネルギー発生・輸送・散逸の数値的研究

Hidetaka Kuniyoshi (University of Tokyo)

142^nd Uchu Forum ALMA and JWST exploration of high-redshift galaxies (and stars)

Yoshinobu Fudamoto (Chiba University)

141^st Uchu Forum Cloud-scale molecular gas properties of nearby spiral and starburst galaxies with ALMA

Toshiki Saito (National Astronomical Observatory of Japan)

140^th Uchu Forum X線偏光観測による活動銀河核の構造

Atsushi Tanimoto (Kagoshima University)

139^th Uchu Forum ダークマターは何者か？：暗黒物質の解明に向けた近傍宇宙論研究の現状と将来展望

Kohei Hayashi (NIT, Sendai College)

138^th Uchu Forum スペクトル吸収線から探る原始銀河団ガス

Ken Mawatari (University of Tsukuba)

137^th Uchu Forum シミュレーション・サーベイで探る，初代星形成の統一シナリオ

Shingo Hirano (The University of Tokyo)

136^th Uchu Forum X-ray polarisation observations: A new means of exploring the high-energy universe

Toru Tamagawa (RIKEN)

135^th Uchu Forum New insights into active galactic nuclei using high-resolution submillimetre-wave observations

Takuma Izumi (NAOJ)

134^th Uchu Forum Supernova explosions and the isotope $^{56}$N

Ryo Sawada (University of Tokyo)

133^rd Uchu Forum Accretion disk jet structure in the environs of a supermassive black hole explored by polarized light imaging

Yuh Tsunetoe (University of Tsukuba)

132^nd Uchu Forum Star Formation Activity in Barred Spiral Galaxies Probed by Molecular Gas Observations

Fumiya Maeda (Institute of Astronomy, The University of Tokyo)

131^st Uchu Forum Formation and evolution of star-forming filaments in molecular clouds

Daisei Abe (Nagoya University)

130^th Uchu Forum The CMB Polarization Observation Experiment GroundBIRD

Shunsuke Honda (University of Tsukuba)

129^th Uchu Forum Cosmic Ray Particle Acceleration by the Jet of Microquasar SS433 Probed through Radio Observations

Haruka Sakemi (Kagoshima University)

128^th Uchu Forum The Age of Discovery with JWST: Excavating the First Massive Black Holes and First Galaxies

Kohei Inayoshi (Peking University)

127^th Uchu Forum Probing the impact of feedback by cosmological hydrodynamic simulations

Kentaro Nagamine (Osaka University)

126^th Uchu Forum The Milky Way's central supermassive black hole observed by the Event Horizon Telescope: results and future prospects

Kotaro Moriyama (Goethe University Frankfurt)

125^th Uchu Forum ALMA/NOEMA view of galaxy-scale molecular outflows

Dragan Salak (Hokkaido University)

124^th Uchu Forum UV & Ly-alpha halos of LAEs across environments at z=2.84

Satoshi Kikuta (University of Tsukuba, Center for Computational Sciences)

123^rd Uchu Forum A multifaceted study of the remnants of first stars

Takanobu Kirihara (University of Tsukuba, Center for Computational Sciences)

122^nd Uchu Forum Molecular cloud collisions and machine learning

Shinji Fujita (Osaka Prefecture University)

121^st Uchu Forum On the Tidal Formation of Dark Matter Deficient Galaxies

Go Ogiya (University of Waterloo)

120^th Uchu Forum Structure of the magnetic field driving active galactic nuclear jets probed by polarized light images

Yu Tsuneto (Kyoto University)

119^th Uchu Forum Identifying galactic structures in a galaxy more than 12 billion years ago using the gas dynamics

Takafumi Tsukui (Sokendai)

118^th Uchu Forum A theoretical framework for cosmological analysis of 21-cm line observations

Rika Ando (Nagoya University)

117^th Uchu Forum The Diversity of IGM-galaxy connection among galaxies at redshift z = 2-3

Rieko Momose (University of Tokyo)