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

ENG - Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

Original language	English
Title of host publication	Death of Massive Stars
Subtitle of host publication	Supernovae and Gamma-Ray Bursts
Editors	Peter W. A. San Antonio, Nobuyuki Kawai, Elena Pian
Pages	337-338
Number of pages	2
Edition	S279
DOIs	https://doi.org/10.1017/S1743921312013233
Publication status	Published - 2011 Apr

Publication series

Name	Proceedings of the International Astronomical Union
Number	S279
Volume	7
ISSN (Print)	1743-9213
ISSN (Electronic)	1743-9221

Keywords

hydrodynamics
instabilities.
shock waves
supernovae

ASJC Scopus subject areas

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1017/S1743921312013233

Cite this

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 et al.
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).

Research output: Chapter in Book/Report/Conference proceeding › 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 et al. / 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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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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Neutron star kicks affected by standing accretion shock instability for core-collapse supernovae

Abstract

Publication series

Keywords

ASJC Scopus subject areas

UN SDGs

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