Numerical Simulations of Self-Gravitating Systems Through Collision less Boltzmann Equation on Six-Dimensional Phase Space
| Project/Area Number |
21654026
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Astronomy
|
|---|
| Research Institution | University of Tsukuba |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
UMEMURA Masayuki 筑波大学, 数理物質系, 教授 (70183754)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2009: ¥1,100,000 (Direct Cost: ¥1,100,000)
|
|---|
| Keywords | 数値シミュレーション / 自己重力系 / ボルツマン方程式 |
|---|
| Research Abstract |
We develop a numerical simulation code for self-gravitating systems which directly integrates the collisionless Boltzmann equation coupled with the Poisson equation on the six-dimensional phase space, and perform, for the first time, a set of numerical simulations of self-gravitating systems using the collisionless Boltzmann equation with a scientifically meaningful problem size. Furthermore, by comparing the results obtained from both of our numerical simulations and conventional N-body simulations, we confirm the validity of our numerical method and estimate its advantage and disadvantages over the conventional N-body method. We also adopt our method to numerical simulations of the large-scale structure formation in the universe by extending our implementation into the cosmological comoving frame, and confirm its validity again by comparing the results with those from conventional N-body simulations.
|
Report
(4 results)
Research Products
(22 results)
-
-
-
-
-
[Journal Article] A high-frequency study of the Sunyaev-Zel'dovich effect morphology in galaxy clusters2011
Author(s)
Prokhorov, D. A., Colafrancesco, S., Akahori, T., Million, E. T., Nagataki, S., Yoshikawa, K
-
Journal Title
Monthly Notice of the Royal Astronomical Society
Volume: 416
Pages: 302-302
Related Report
Peer Reviewed
-
-
[Journal Article] Can electron distribution functions be derived through the Sunyaev-Zel'dovich effect2011
Author(s)
Prokhorov, D. A., Colafrancesco, S., Akahori, T., Yoshikawa, K., Nagataki, S., Seon, K.-I
-
Journal Title
Astronomy & Astrophysics
Volume: 529
Pages: 39-39
Related Report
Peer Reviewed
-
[Journal Article] Can electron distribution functions be derived through the Sunyaev-Zel'dovich effect?2011
Author(s)
Prokhorov, D. A., Colafrancesco, S., Akahori, T., Yoshikawa, K., Nagataki, S., Seon, K.-I.
-
Journal Title
Astronomy & Astrophysics
Volume: 529
Pages: A39-A39
DOI
Related Report
Peer Reviewed
-
-
-
-
-
[Journal Article] Can electron distribution functions be derived through the Sunyaev-Zel'dovich effect?2011
Author(s)
Prokhorov, D.A., Colafrancesco, S., Akahori, T., Yoshikawa, K., Nagataki, S., Seon, K.-1.
-
Journal Title
Astronomy & Astrophysics
Volume: 529
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
