56 citations · 126 across the 6 of their papers we have counts for
6 papers
Axion clouds may survive the perturbative tidal interaction over the early inspiral phase of black hole binaries
Takuya Takahashi, Takahiro Tanaka
Gravitational wave observation has the potential of probing ultralight bosonic fields such as axion. Axion forms a cloud around a rotating black hole (BH) by superradiant instabili…
Renormalization group analysis of superradiant growth of self-interacting axion cloud
Hidetoshi Omiya, Takuya Takahashi, Takahiro Tanaka
There are strong interests in considering ultra-light scalar fields (especially axion) around a rapidly rotating black hole because of the possibility of observing gravitational wa…
Symmetry Preservation and Critical Fluctuations in a Pseudospin Crossover Perovskite LaCoO
Yasuhiro Shimizu, Takuya Takahashi, Syunpei Yamada +3
Spin-state crossover beyond a conventional ligand-field theory has been a fundamental issue in condensed matter physics. Here, we report microscopic observations of spin states and…
Quasi-periodic oscillations in flares and coronal mass ejections associated with magnetic reconnection
Takuya Takahashi, Jiong Qiu, Kazunari Shibata
We propose a mechanism for quasi-periodic oscillations of both coronal mass ejections (CMEs) and flare loops as related to magnetic reconnection in eruptive solar flares. We perfor…
Sheath-Accumulating Propagation of Interplanetary Coronal Mass Ejection
Takuya Takahashi, Kazunari Shibata
Fast interplanetary coronal mass ejections (interplanetary CMEs, or ICMEs) are the drivers of strongest space weather storms such as solar energetic particle events and geomagnetic…
Shock-Cloud Interaction in the Solar Corona
Takuya Takahashi
Flare associated coronal shock waves sometimes interact with solar prominences leading to large amplitude prominence oscillations. Such prominence activation gives us unique opport…