Faculty Profiles - INUTSUKA, Shu-ichiro

Papers - INUTSUKA, Shu-ichiro

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Evolutionary Description of Giant Molecular Cloud Mass Functions on Galactic Disks Reviewed

Kobayashi Masato I. N., Inutsuka Shu-ichiro, Kobayashi Hiroshi, Hasegawa Kenji

ASTROPHYSICAL JOURNAL Vol. 836 ( 2 ) 2017.2

Time Evolution of the Giant Molecular Cloud Mass Functions across Galactic Disks

Kobayashi, MIN; Inutsuka, SI; Kobayashi, H; Hasegawa, K

MULTI-MESSENGER ASTROPHYSICS OF THE GALACTIC CENTRE Vol. 11 ( S322 ) page： 158 - 159 2017

An origin of accelerating star formation a reply to Palla & Stahler (2000) Reviewed International journal

Inutsuka S.

Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society Vol. 88 ( 4 ) page： 554 - 556 2017

Authorship：Lead author,　Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society

Recent theoretical investigation provides a picture of molecular cloud formation in interacting shells or bubbles in the Galactic disk. Filametary molecular clouds are ubiquitously formed in magnetized dense shells created by expanding bubbles. Star formation starts in dense cores in filamentary molecular cloud, once the mass per unit length of the filament exceeds the critical line-mass. An integrated picture of the cloud formation explains many observational properties such as, cloud-to-cloud velocity dispersions, molecular cloud mass function, dense core mass function, and very low star formation efficiencies in the Galactic disk, as well as the reason for the acceleration of star formation in each star forming region.

Scopus

Time evolution of giant molecular cloud mass functions with cloud-cloud collisions and gas resurrection in various environments International journal

Kobayashi M., Inutsuka S., Kobayashi H., Hasegawa K.

Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society Vol. 88 ( 4 ) page： 741 - 742 2017

Language：English Publishing type：Research paper (scientific journal) Publisher：Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society

We formulate the evolution equation for the giant molecular cloud (GMC) mass functions including self-growth of GMCs through the thermal instability, self-dispersal due to massive stars born in GMCs, cloud-cloud collisions (CCCs), and gas resurrection that replenishes the minimum-mass GMC population. The computed time evolutions obtained from this formulation suggest that the slope of GMC mass function in the mass range < 10355 MO is governed by the ratio of GMC formation timescale to its dispersal timescale, and that the CCC process modifies only the massive end of the mass function. Our results also suggest that most of the dispersed gas contributes to the mass growth of pre-existing GMCs in arm regions whereas less than 60 per cent contributes in inter-arm regions.

Scopus

ALMA observations of massive clouds in the central molecular zone: slim filaments tracing parsec-scale shocks Reviewed International coauthorship International journal Open Access

Yang, K; Lu, X; Zhang, YC; Liu, XC; Ginsburg, A; Liu, HB; Cheng, Y; Feng, SY; Liu, T; Zhang, QZ; Mills, EAC; Walker, DL; Inutsuka, SI; Battersby, C; Longmore, SN; Tang, XD; Kauffmann, J; Gu, QL; Li, SH; Luo, QY; Kruijssen, JMD; Pillai, T; Qiao, HH; Qiu, KP; Shen, ZQ

ASTRONOMY & ASTROPHYSICS Vol. 694 2025.2

The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region Reviewed International coauthorship International journal Open Access

Choi, Y; Kwon, W; Pattle, K; Arzoumanian, D; Bourke, TL; Hoang, T; Hwang, J; Koch, PM; Sadavoy, S; Bastien, P; Furuya, R; Lai, SP; Qiu, KP; Ward-Thompson, D; Berry, D; Byun, DY; Chen, HRV; Chen, WP; Chen, M; Chen, ZW; Ching, TC; Cho, J; Choi, M; Choi, Y; Coudé, S; Chrysostomou, A; Chung, EJ; Dai, S; Debattista, V; Di Francesco, J; Diep, PN; Doi, Y; Duan, HY; Duan, Y; Eswaraiah, C; Fanciullo, L; Fiege, J; Fissel, LM; Franzmann, E; Friberg, P; Friesen, R; Fuller, G; Gledhill, T; Graves, S; Greaves, J; Griffin, M; Gu, QL; Han, I; Hasegawa, T; Houde, M; Hull, CLH; Inoue, T; Inutsuka, S; Iwasaki, K; Jeong, IG; Johnstone, D; Karoly, J; Könyves, V; Kang, JH; Kang, MJ; Kataoka, A; Kawabata, K; Kemper, F; Kim, J; Kim, S; Kim, G; Kim, KH; Kim, MR; Kim, KT; Kim, H; Kirchschlager, F; Kirk, J; Kobayashi, MIN; Kusune, T; Kwon, J; Lacaille, K; Law, CY; Lee, CW; Lee, H; Lee, CF; Lee, JE; Lee, SS; Li, DL; Li, D; Li, GX; Li, HB; Lin, SJ; Liu, HL; Liu, T; Liu, SY; Liu, JH; Longmore, S; Lu, X; Lyo, AR; Mairs, S; Matsumura, M; Matthews, B; Moriarty-Schieven, G; Nagata, T; Nakamura, F; Nakanishi, H; Ngoc, NB; Ohashi, N; Onaka, T; Park, G; Parsons, H; Peretto, N; Priestley, F; Pyo, TS; Qian, L; Rao, R; Rawlings, J; Rawlings, M; Retter, B; Richer, J; Rigby, A; Saito, H; Savini, G; Seta, M; Sharma, E; Shimajiri, Y; Shinnaga, H; Soam, A; Tahani, M; Tamura, M; Tang, YW; Tang, XD; Tomisaka, K; Tram, LN; Tsukamoto, Y; Viti, S; Wang, HC; Wang, JW; Whitworth, A; Wu, JT; Xie, JJ; Yang, MZ; Yen, HW; Yoo, H; Yuan, JH; Yun, HS; Zenko, T; Zhang, GY; Zhang, YP; Zhang, CP; Zhou, JJ; Zhu, L; de Looze, I; André, P; Dowell, CD; Eden, D; Eyres, S; Falle, S; Le Gouellec, VJM; Poidevin, F; van Loo, S

ASTROPHYSICAL JOURNAL Vol. 977 ( 1 ) 2024.12

Theoretical Models of Protostellar Binary and Multiple Systems with AMR Simulations

Matsumoto Tomoaki, Tokuda Kazuki, Onishi Toshikazu, Inutsuka Shu-Ichiro, Saigo Kazuya, Takakuwa Shigehisa

11TH INTERNATIONAL CONFERENCE ON NUMERICAL MODELING OF SPACE PLASMA FLOWS (ASTRONUM-2016) Vol. 837 2017

The origin of rotation profiles in star-forming clouds Reviewed

Takahashi Sanemichi Z., Tomida Kengo, Machida Masahiro N., Inutsuka Shu-ichiro

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Vol. 463 ( 2 ) page： 1390-1399 2016.12

AN ORIGIN OF MULTIPLE RING STRUCTURE AND HIDDEN PLANETS IN HL TAU: A UNIFIED PICTURE BY SECULAR GRAVITATIONAL INSTABILITY Reviewed

Takahashi Sanemichi Z., Inutsuka Shu-ichiro

ASTRONOMICAL JOURNAL Vol. 152 ( 6 ) 2016.12

Conditions for circumstellar disc formation - II. Effects of initial cloud stability and mass accretion rate Reviewed

Machida Masahiro N., Matsumoto Tomoaki, Inutsuka Shu-ichiro

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Vol. 463 ( 4 ) page： 4246-4267 2016.12

Conditions for circumstellar disc formation - II. Effects of initial cloud stability and mass accretion rate Reviewed

M. N. Machida, T. Matsumoto, S. Inutsuka

Monthly Notices of the Royal Astronomical Society Vol. 463 ( 4 ) page： 4246-4267 2016.9

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Disc formation in strongly magnetized cloud cores is investigated using a three-dimensional magnetohydrodynamic simulation with a focus on the effects of the initial cloud stability and the mass accretion rate. The initial cloud stability greatly alters the disc formation process even for prestellar clouds with the same mass-to-flux ratio. A high mass accretion rate on to the disc-forming region is realized in initially unstable clouds, and a large angular momentum is introduced into the circumstellar region in a short time. The region around the protostar has both a thin infalling envelope and a weak magnetic field, which both weaken the effect of magnetic braking. The growth of the rotation-supported disc is promoted in such unstable clouds. Conversely, clouds in an initially near-equilibrium state show lower accretion rates of mass and angular momentum. The angular momentum is transported to the outer envelope before protostar formation. After protostar formation, the circumstellar region has a thick infalling envelope and a strong magnetic field that effectively brakes the disc. As a result, disc formation is suppressed when the initial cloud is in a nearly stable state. The density distribution of the initial cloud also affects the disc formation process. Disc growth strongly depends on the initial conditions when the prestellar cloud has a uniform density, whereas there is no significant difference in the disc formation process in prestellar clouds with non-uniform densities.

DOI： 10.1093/mnras/stw2256

REVEALING A DETAILED MASS DISTRIBUTION OF A HIGH-DENSITY CORE MC27/L1521F IN TAURUS WITH ALMA Reviewed

Tokuda Kazuki, Onishi Toshikazu, Matsumoto Tomoaki, Saigo Kazuya, Kawamura Akiko, Fukui Yasuo, Inutsuka Shu-ichiro, Machida Masahiro N., Tomida Kengo, Tachihara Kengo, Andre Philippe

ASTROPHYSICAL JOURNAL Vol. 826 ( 1 ) 2016.7

Atmospheric Electrification in Dusty, Reactive Gases in the Solar System and Beyond Reviewed

Helling Christiane, Harrison R. Giles, Honary Farideh, Diver Declan A., Aplin Karen, Dobbs-Dixon Ian, Ebert Ute, Inutsuka Shu-ichiro, Gordillo-Vazquez Francisco J., Littlefair Stuart

SURVEYS IN GEOPHYSICS Vol. 37 ( 4 ) page： 705-756 2016.7

DUST DYNAMICS IN PROTOPLANETARY DISK WINDS DRIVEN BY MAGNETOROTATIONAL TURBULENCE: A MECHANISM FOR FLOATING DUST GRAINS WITH CHARACTERISTIC SIZES Reviewed

Miyake Tomoya, Suzuki Takeru K., Inutsuka Shu-Ichiro

ASTROPHYSICAL JOURNAL Vol. 821 ( 1 ) 2016.4

An extension of Godunov SPH: Application to negative pressure media Reviewed

Sugiura Keisuke, Inutsuka Shu-ichiro

JOURNAL OF COMPUTATIONAL PHYSICS Vol. 308 page： 171-197 2016.3

Diffusion of cosmic rays in a multiphase interstellar medium swept-up by a supernova remnant blast wave Reviewed

Roh Soonyoung, Inutsuka Shu-ichiro, Inoue Tsuyoshi

ASTROPARTICLE PHYSICS Vol. 73 page： 1-7 2016.1

ALMA Observations of a High-density Core in Taurus: Dynamical Gas Interaction at the Possible Site of a Multiple Star Formation Reviewed

Tokuda Kazuki, Onishi Toshikazu, Saigo Kazuya, Kawamura Akiko, Fukui Yasuo, Matsumoto Tomoaki, Inutsuka Shu-ichiro, Machida Masahiro N., Tomida Kengo, Tachihara Kengo

FROM INTERSTELLAR CLOUDS TO STAR-FORMING GALAXIES: UNIVERSAL PROCESSES? ( 315 ) 2016

The Formation and Destruction of Molecular Clouds and Galactic Star Formation Reviewed

Inutsuka Shu-ichiro, Inoue Tsuyoshi, Iwasaki Kazunari, Hosokawa Takashi, Kobayashi Masato I. N.

FROM INTERSTELLAR CLOUDS TO STAR-FORMING GALAXIES: UNIVERSAL PROCESSES? ( 315 ) page： 61-68 2016

ON THE RADIUS ANOMALY OF HOT JUPITERS: REEXAMINATION OF THE POSSIBILITY AND IMPACT OF LAYERED CONVECTION Reviewed

Kurokawa Hiroyuki, Inutsuka Shu-ichiro

ASTROPHYSICAL JOURNAL Vol. 815 ( 1 ) 2015.12

Significant gas-to-dust ratio asymmetry and variation in the disk of HD 142527 and the indication of gas depletion Reviewed

Muto Takayuki, Tsukagoshi Takashi, Momose Munetake, Hanawa Tomoyuki, Nomura Hideko, Fukagawa Misato, Saigo Kazuya, Kataoka Akimasa, Kitamura Yoshimi, Takahashi Sanemichi Z., Inutsuka Shu-ichiro, Takeuchi Taku, Kobayashi Hiroshi, Akiyama Eiji, Honda Mitsuhiko, Fujiwara Hideaki, Shibai Hiroshi

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN Vol. 67 ( 6 ) 2015.12

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Papers - INUTSUKA, Shu-ichiro