Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae

Wakana Iwakami Nakano; Kei Kotake; Naofumi Ohnishi; Shoichi Yamada; Keisuke Sawada

doi:10.1017/S1743921312013233

Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae

Wakana Iwakami Nakano^*, Kei Kotake, Naofumi Ohnishi, Shoichi Yamada, Keisuke Sawada

^*この研究の対応する著者

先進理工学部

研究成果: Conference contribution

抄録

We investigate a proto-neutron star kick velocity estimated from kinetic momentum of a flow around the proto-neutron star after the standing accretion shock instability grows. In this study, ten different types of random perturbations are imposed on the initial flow for each neutrino luminosity. We found that the kick velocities of proto-neutron star are widely distributed from 40 km s ^-1 to 180 km s ^-1 when the shock wave reaches 2000 km away from the center of the star. The average value of kick velocity is 115 km s ^-1, whose value is smaller than the observational ones. The kick velocities do not depend on the neutrino luminosity.

本文言語	English
ホスト出版物のタイトル	Death of Massive Stars
ホスト出版物のサブタイトル	Supernovae and Gamma-Ray Bursts
編集者	Peter W. A. San Antonio, Nobuyuki Kawai, Elena Pian
ページ	337-338
ページ数	2
版	S279
DOI	https://doi.org/10.1017/S1743921312013233
出版ステータス	Published - 2011 4月

出版物シリーズ

名前	Proceedings of the International Astronomical Union
番号	S279
巻	7
ISSN（印刷版）	1743-9213
ISSN（電子版）	1743-9221

ASJC Scopus subject areas

医学（その他）
天文学と天体物理学
栄養および糖尿病
公衆衛生学、環境および労働衛生
宇宙惑星科学

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

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10.1017/S1743921312013233

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Nakano, W. I., Kotake, K., Ohnishi, N., Yamada, S., & Sawada, K. (2011). Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae. In P. W. A. San Antonio, N. Kawai, & E. Pian (Eds.), Death of Massive Stars: Supernovae and Gamma-Ray Bursts (S279 ed., pp. 337-338). (Proceedings of the International Astronomical Union; Vol. 7, No. S279). https://doi.org/10.1017/S1743921312013233

Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae. / Nakano, Wakana Iwakami; Kotake, Kei; Ohnishi, Naofumi その他.
Death of Massive Stars: Supernovae and Gamma-Ray Bursts. ed. / Peter W. A. San Antonio; Nobuyuki Kawai; Elena Pian. S279. ed. 2011. p. 337-338 (Proceedings of the International Astronomical Union; Vol. 7, No. S279).

研究成果: Conference contribution

Nakano, WI, Kotake, K, Ohnishi, N, Yamada, S & Sawada, K 2011, Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae. in PWA San Antonio, N Kawai & E Pian (eds), Death of Massive Stars: Supernovae and Gamma-Ray Bursts. S279 edn, Proceedings of the International Astronomical Union, no. S279, vol. 7, pp. 337-338. https://doi.org/10.1017/S1743921312013233

Nakano WI, Kotake K, Ohnishi N, Yamada S, Sawada K. Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae. In San Antonio PWA, Kawai N, Pian E, editors, Death of Massive Stars: Supernovae and Gamma-Ray Bursts. S279 ed. 2011. p. 337-338. (Proceedings of the International Astronomical Union; S279). doi: 10.1017/S1743921312013233

Nakano, Wakana Iwakami ; Kotake, Kei ; Ohnishi, Naofumi その他. / Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae. Death of Massive Stars: Supernovae and Gamma-Ray Bursts. editor / Peter W. A. San Antonio ; Nobuyuki Kawai ; Elena Pian. S279. ed. 2011. pp. 337-338 (Proceedings of the International Astronomical Union; S279).

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title = "Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae",

abstract = "We investigate a proto-neutron star kick velocity estimated from kinetic momentum of a flow around the proto-neutron star after the standing accretion shock instability grows. In this study, ten different types of random perturbations are imposed on the initial flow for each neutrino luminosity. We found that the kick velocities of proto-neutron star are widely distributed from 40 km s -1 to 180 km s -1 when the shock wave reaches 2000 km away from the center of the star. The average value of kick velocity is 115 km s -1, whose value is smaller than the observational ones. The kick velocities do not depend on the neutrino luminosity.",

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AU - Nakano, Wakana Iwakami

AU - Kotake, Kei

AU - Ohnishi, Naofumi

AU - Yamada, Shoichi

AU - Sawada, Keisuke

PY - 2011/4

Y1 - 2011/4

N2 - We investigate a proto-neutron star kick velocity estimated from kinetic momentum of a flow around the proto-neutron star after the standing accretion shock instability grows. In this study, ten different types of random perturbations are imposed on the initial flow for each neutrino luminosity. We found that the kick velocities of proto-neutron star are widely distributed from 40 km s -1 to 180 km s -1 when the shock wave reaches 2000 km away from the center of the star. The average value of kick velocity is 115 km s -1, whose value is smaller than the observational ones. The kick velocities do not depend on the neutrino luminosity.

AB - We investigate a proto-neutron star kick velocity estimated from kinetic momentum of a flow around the proto-neutron star after the standing accretion shock instability grows. In this study, ten different types of random perturbations are imposed on the initial flow for each neutrino luminosity. We found that the kick velocities of proto-neutron star are widely distributed from 40 km s -1 to 180 km s -1 when the shock wave reaches 2000 km away from the center of the star. The average value of kick velocity is 115 km s -1, whose value is smaller than the observational ones. The kick velocities do not depend on the neutrino luminosity.

KW - hydrodynamics

KW - instabilities.

KW - shock waves

KW - supernovae

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SN - 9781107019799

T3 - Proceedings of the International Astronomical Union

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BT - Death of Massive Stars

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Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae

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ASJC Scopus subject areas

UN SDG

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