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Participant |
Nagataki, Shigehiro | |||||||
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Institution |
RIKEN - 2-1, Hirosawa - Wako - Saitama - Japan | |||||||
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Session |
GB4 |
Accepted |
Yes |
Order |
9 |
Time |
17:40 | 20' |
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Talk |
Oral abstract |
Title |
3D Relativistic Radiation-Hydro Simulation for Photospheric Emission in GRBs | |||||
| Coauthors | Hirotaka Ito, Jin Matsumoto | |||||||
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Abstract |
We have performed 3-Dimensional Relativistic Hydro Simulations for GRBs. Using the hydro-simulations, we followed radiation-transfer to calculate the resulting GRB spectrum and light curves. We found clealy that the activities of the central engine are printed on the GRB photospheric emissions. This result is important since it suggests strongly that we can make a strong constraints on the central engine of GRBs from observed GRB spectrum and light curves. I would like to thank the chairs for their kind invitation. |
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Pdf file |
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Session |
SN1-2 |
Accepted |
No |
Order |
Time |
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Talk |
Oral abstract |
Title |
Core-Collapse Supernovae & Collapsar Simulations | |||||
| Coauthors | Tomoya Takiwaki, Maxim Barkov, Luca Baiotti | |||||||
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Abstract |
Our group has obtained a 3-dimensional, successful explosion model for core-collapse supernovae using K-Computer that is one of the fastest super-computer in the world. Also, we are tyring to perform 3-dimensional collapsar simulations as a central engine of long gamma-ray bursts with Einstein Equation Solver using Whisky Code. For the collapsar simulations, we have started new collaborations with Dr. Luca Baiotti who is a developer of Whisky Code. I am very happy to introduce our recent activities at this conference, showing the similarity and difference between Core-Collapse supernovae and Collapsars. |
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Pdf file |
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Session |
SN1-2 |
Accepted |
Yes |
Order |
2 |
Time |
15:10 | 30' |
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Talk |
Oral abstract |
Title |
Collapsar Simulations as A Central Engine of Gamma-Ray Bursts | |||||
| Coauthors | Maxim Barkov, Luca Baiotti, Tomoya Takiwaki | |||||||
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Abstract |
We would like to introduce our simulations of Collapsars as central engine of long gamma-ray bursts. We used 2D/3D General Relativistic MHD codes with a fixed, Kerr Metric. We would like to show how a strong jet is launched from a rotating black hole due to Blandford-Znajek Effects. Also, we would like to present our current project to perform 3-dimensional collapsar simulations by using the Whisky Code and the Einstein Equation Solver of the "Einstein Toolkit". If we still have time, we are happy to show a 3D, successful explosion model for core-collapse supernovae using K-Computer of our Institute (RIKEN, Japan) that is one of the fastest super-computer in the world. |
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Pdf file |
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