Search Results - "Keiichi, Wada"

Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers by Yutani, Naomichi, Toba, Yoshiki, Baba, Shunsuke, Wada, Keiichi

“…Dust-obscured galaxies (DOGs), which are observationally characterized as faint in the optical and bright in the infrared, are the final stage of galaxy…”
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Circumnuclear Multi-phase Gas in the Circinus Galaxy. I. Non-LTE Calculations of CO Lines by Wada, Keiichi, Fukushige, Ryosuke, Izumi, Takuma, Tomisaka, Kohji

“…In this study, we investigate the line emissions from cold molecular gas based on our previous "radiation-driven fountain model," which reliably explains the…”
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Instabilities of Spiral Shocks. II. A Quasi-Steady State in the Multiphase Inhomogeneous ISM by Wada, Keiichi

“…'Galactic shocks' (Fujimoto; Roberts) are investigated using full three- dimensional hydrodynamic simulations that take into account the self-gravity of the…”
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Obscuring Fraction of Active Galactic Nuclei Implied by Supernova and Radiative Feedbacks by Kawakatu, Nozomu, Wada, Keiichi, Ichikawa, Kohei

“…We study the obscuring structure of circumnuclear disks (CNDs) by considering supernova (SN) feedbacks from nuclear starburst and the effect of anisotropic…”
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Multiphase Gas Nature in the Sub-parsec Region of the Active Galactic Nuclei. I. Dynamical Structures of Dusty and Dust-free Outflow by Kudoh, Yuki, Wada, Keiichi, Kawakatu, Nozomu, Nomura, Mariko

“…We investigated dusty and dust-free gas dynamics for a radiation-driven sub-parsec-scale outflow in an active galactic nucleus (AGN) associated with a…”
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Planet Formation around Supermassive Black Holes in the Active Galactic Nuclei by Wada, Keiichi, Tsukamoto, Yusuke, Kokubo, Eiichiro

“…As a natural consequence of the elementary processes of dust growth, we discovered that a new class of planets can be formed around supermassive black holes…”
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Spontaneous Formation of Outflows Powered by Rotating Magnetized Accretion Flows in a Galactic Center by Takasao, Shinsuke, Shuto, Yuri, Wada, Keiichi

“…We investigate how magnetically driven outflows are powered by a rotating, weakly magnetized accretion flow onto a supermassive black hole using axisymmetric…”
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Circumnuclear Multiphase Gas in Circinus Galaxy. III. Structure of the Nuclear Ionized Gas by Wada, Keiichi, Yonekura, Kensuke, Nagao, Tohru

“…We investigate the properties of the ionized gas irradiated by an active galactic nucleus (AGN) based on our "radiation-driven fountain" model for the nearest…”
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Apparent Effect of Dust Extinction on the Observed Outflow Velocity of Ionized Gas in Galaxy Mergers by Yutani, Naomichi, Toba, Yoshiki, Wada, Keiichi

“…In this study, we examine photoionization outflows during the late stages of galaxy mergers, with a specific focus on the relation between the observed…”
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Formation of “Blanets” from Dust Grains around the Supermassive Black Holes in Galaxies by Wada, Keiichi, Tsukamoto, Yusuke, Kokubo, Eiichiro

“…In Wada et al. (2019), we proposed for the first time that a new class of planets, blanets , can be formed around supermassive black holes in the galactic…”
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Mass Accretion toward Black Holes in the Final Phase of Galaxy Mergers by Kawaguchi, Takeru, Yutani, Naomichi, Wada, Keiichi

“…We studied the final phases of galactic mergers, focusing on interactions between supermassive black holes (SMBHs) and the interstellar medium in a central…”
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Circumnuclear Multiphase Gas in the Circinus Galaxy. VI. Detectability of Molecular Inflow and Atomic Outflow by Baba, Shunsuke, Wada, Keiichi, Izumi, Takuma, Kudoh, Yuki, Matsumoto, Kosei

“…Recent submillimeter observations have revealed signs of parsec-scale molecular inflow and atomic outflow in the nearest Seyfert 2 galaxy, the Circinus galaxy…”
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Coevolution of Supermassive Black Holes and Circumnuclear Disks by Kawakatu, Nozomu, Wada, Keiichi

“…We propose a new evolutionary model of a supermassive black hole (SMBH) and a circumnuclear disk (CND), taking into account the mass supply from a host galaxy…”
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Circumnuclear Multiphase Gas in the Circinus Galaxy. V. The Origin of the X-Ray Polarization in the Circinus Galaxy by Tanimoto, Atsushi, Wada, Keiichi, Kudoh, Yuki, Odaka, Hirokazu, Uematsu, Ryosuke, Ogawa, Shoji

“…The Imaging X-ray Polarimetry Explorer (IXPE) detected X-ray polarization in the nearest Seyfert 2 galaxy, the Circinus galaxy, for the first time. To…”
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Circumnuclear Multi-phase Gas in Circinus Galaxy IV: Absorption Owing to High-J CO Rotational Transitions by Uzuo, Taisei, Wada, Keiichi, Izumi, Takuma, Baba, Shunsuke, Matsumoto, Kosei, Kudoh, Yuki

“…We studied the absorption features of CO lines against the continuum originating from the heated dust in the obscuring tori around active galactic nuclei…”
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ALMA 0 02 Resolution Observations Reveal HCN-abundance-enhanced Counter-rotating and Outflowing Dense Molecular Gas at the NGC 1068 Nucleus by Imanishi, Masatoshi, Nguyen, Dieu D., Wada, Keiichi, Hagiwara, Yoshiaki, Iguchi, Satoru, Izumi, Takuma, Kawakatu, Nozomu, Nakanishi, Kouichiro, Onishi, Kyoko

“…We present ALMA ∼0 02 resolution observations of the nucleus of the nearby (∼14 Mpc) type 2 active galactic nucleus NGC 1068 at HCN/HCO+/HNC J = 3-2 lines, as…”
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Radiation hydrodynamic simulations of line-driven disk winds for ultra-fast outflows by Nomura, Mariko, Ohsuga, Ken, Takahashi, Hiroyuki R., Wada, Keiichi, Yoshida, Tessei

“…Using two-dimensional radiation hydrodynamic simulations, we investigate the origin of the ultra-fast outflows (UFOs) that are often observed in luminous…”
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[O iv]- and [Ne v]-weak Active Galactic Nuclei Hidden by Compton-thick Material in Late Mergers by Yamada, Satoshi, Ueda, Yoshihiro, Kawamuro, Taiki, Ricci, Claudio, Toba, Yoshiki, Imanishi, Masatoshi, Miyaji, Takamitsu, Tanimoto, Atsushi, Ichikawa, Kohei, Herrera-Endoqui, Martín, Ogawa, Shoji, Uematsu, Ryosuke, Wada, Keiichi

“…We study “buried” active galactic nuclei (AGNs) almost fully covered by circumnuclear material in ultra/luminous infrared galaxies (U/LIRGs), which show weak…”
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Density Structure of the Interstellar Medium and the Star Formation Rate in Galactic Disks by Wada, Keiichi, Norman, Colin A

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Novel ultrashort-acting benzodiazepine remimazolam lowers shivering threshold in rabbits by Muroya, Kenji, Ueda, Kenta, Wada, Keiichi, Kotoda, Masakazu, Matsukawa, Takashi

“…Shivering after surgery or during therapeutic hypothermia can lead to serious complications, such as myocardial infarction and respiratory failure. Although…”
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