Study of Supercritical Black Hole Accretion and Supermassive Stars with General Relativistic Radiation Hydrodynamics
| Project/Area Number |
15H03638
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Astronomy
|
|---|
| Research Institution | University of Tsukuba |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
高橋 労太 苫小牧工業高等専門学校, 創造工学科, 准教授 (40513453)
|
|---|
| Project Period (FY) |
2015-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | ブラックホール / 一般相対性理論 / 輻射輸送 / 輻射流体力学 / 数値シミュレーション / 宇宙物理学 / 宇宙物理 |
|---|
| Outline of Final Research Achievements |
We have developed a general relativistic radiation transfer code ARTIST（Authentic Radiation Transfer in Space-Time）to realize radiation hydrodynamics calculation under black hole space-time. The Kerr-Shild coordinates are employed in the Kerr metric. Since ARTIST solves the covariant radiative transfer equation with tracing the light propagation along geodesics, it satisfies the causality strictly and treat properly the general relativistic effects such as light vending, frame dragging, and gravitational redshifts. Using ARTIST, we have solved the propagation of wave fronts from a rotating source around a black hole, and demonstrated that ARTIST can properly treat the general relativistic effects without the collision of wave fronts.
|
| Academic Significance and Societal Importance of the Research Achievements |
一般相対論的なブラックホール時空における輻射輸送を解くARTISTコードは，曲率空間における光の測地線に沿って共変な輻射輸送方程式を解く方法であり，世界初の試みである。これを用いることで，ブラックホール周りの光学的に厚い媒質において，正確な輻射輸送計算が可能になり，超巨大ブラックホールの起源を解く鍵となる超臨界降着や超大質量星の一般相対論的輻射流体計算が大きく進展することが期待される。これにより，高赤方偏移クェーサーや銀河バルジの中心に普遍的に観測されている超巨大ブラックホールの起源，ならびに銀河との共進化関係に迫ることができる。
|
Report
(5 results)
Research Products
(30 results)
-
-
-
-
-
-
-
-
[Journal Article] First-principles study of the formation of glycine-producing radicals from common interstellar species2018
Author(s)
Sato, A., Kitazawa, Y., Ochi, T., Shoji, M., Komatsu, Y., Kayanuma, M., Aikawa, Y., Umemura, M., Shigeta, Y.
-
Journal Title
Molecular Astrophysics
Volume: 10
Pages: 11-19
DOI
Related Report
Peer Reviewed / Open Access
-
-
[Journal Article] A theoretical study of the formation of glycine via hydantoin intermediate in outer space environment2017
Author(s)
Kayanuma, M., Kidachi, K., Shoji, M., Komatsu, Y., Sato, A., Shigeta, Y., Aikawa, Y., Umemura, M.
-
Journal Title
Chemical Physics Letters
Volume: 687
Pages: 178-183
DOI
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
-
-
-
[Journal Article] Galaxy-scale AGN feedback - theory2016
Author(s)
Wagner, A. Y.; Bicknell, G. V.; Umemura, M.; Sutherland, R. S.; Silk, J.
-
Journal Title
Astronomische Nachrichten
Volume: 337
Issue: 1-2
Pages: 167-174
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
[Journal Article] AGN feedback by relativistic jets2015
Author(s)
Bicknell, G. V.; McNamara, B. R.; Nawaz, M. A.; Sutherland, R. S.; Umemura, M.; Wagner, A. Y.;
-
Journal Title
Proceedings of the International Astronomical Union, IAU Symposium
Volume: 313
Issue: S313
Pages: 101-107
DOI
Related Report
Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
