Astrophysics and Mathematical Sciences Group
Faculty of Information Science and Technology,
Osaka Institute of Technology, Japan
We started our group April, 2006. Group head: Hisa-aki Shinkai
- Dynamics described using General Relativity
- Educational Tools in Astronomy and Astrophysics
- Modeling Nature and Society with Mathematics
- Formulation Problem in Numerical Relativity
||Due to the recent developments of observational technology in astronomy, general relativity, an academic theory so far, is going to the front of the science. Our research target is to reveil non-linear features of gravity; such as dynamical behaviours of black-holes and of the Universe, using computers including its methodologies.
We also develop educational softwares on astronomy, physics and mathematics for undergrad students.
Using topics in astrophysical phenomenon, students will be trained methods for modeling:
how to formulate the model, how to calculate the equations, how to analyze the data, and how to interprete the results.
Techniques for solving ordinal and/or partial differential equations
are required using softwares (such as Mathematica, Maple or else) together with programming (FORTRAN, C, Java, or else).
We hope students will graduate acquiring
with appropriate information technology and physical sense.
B. Thesis training
H. Shinkai's research
for young researchers
Osaka Institute of Technology|
Faculty of Information Science and Technology
Department of Information Systems
|Kitayama 1-79-1, Hirakata, Osaka
|Phone:||+81-72-866-5393(dial in), -5466 (students)|
Our Local News
Seminar at Korea Astronomy and Space Science Institute (KASI), Daejeon. Gravitational waves from merging intermediate-mass black holes
- A general book translation,
How to build a Universe by Ben Gilliland (translated by H.Shinkai and T.Torii, Moruzen Publishing Co., 2016; ISBN 978-4621300503) was published in December.
- Article, "Gravitational waves from merging intermediate-mass black holes :
II Event rates at ground-based detectors"
by H. Shinkai, N. Kanda, and T. Ebisuzaki.
abstract / [pdf] /
[arXiv:1610.09505] || [revised version pdf] accepted for publication in Astrophysical Journal (2016/12/23)
- A textbook for students and generals,
Physics answers to "why?" in your daily life (H.Shinkai, Morikita Publishing Co., 2015; ISBN 978-4-627-15611-1) was published in October.
- A book for generals,
Black-Holes, Expanding Universe, and Gravitational Waves --- One hundred years of general relativity --- (H.Shinkai, Kobunsha Publishing Co., 2015; ISBN 978-4-334-03877-8) was published in September.
- An article, "Tensor calculus softwares -- One second for Rieman tensors", was published in general magazine 'Mathematical Sciences (Suuri-Kagaku)' July issue in 2015.
- A textbook,
Calculus with Applications: A Structured Approach, Second edition (H.Shinkai, Kyoritsu Publishing Co., 2013; ISBN978-4-320-11060-1) was published.
- "Wormholes in higher dimensional space-time: Exact solutions and their linear stability analysis" (T.Torii, and H. Shinkai)
Physical Review D 88, 064027 (2013) (6 pages);
- "Wormhole evolutions in higher-dimensional gravity --- Effects of Gauss-Bonnet gravity terms"
(poster pdf 6MB)
at The 20th International Conference on General Relativity and Gravitation (Warsaw, Poland, July 2013)
- A textbook,
Probability and Statistics with Applications: A Structured Approach (H.Shinkai, Kyoritsu Publishing Co., 2012; ISBN978-4-320-01879-2) was published.
- "Constraint Propagation of $C^2$-adjusted Formulation II
--- Another Recipe for Robust BSSN Evolution System ---" (T.Tsuchiya, G.Yoneda, and H. Shinkai)
was published as
Physical Review D 85, 044018 (2012) (12 pages);
"Difficulty levels of SUDOKU: Proposal of D-score using solving logics" (pdf in Japanese)
(T. Dode and H. Shinkai) was published as Momoirs of the Osaka Institute of Technology,
56-1 (2001), 1-18.
"Numerical Investigations of Five-dimensional Gravitational Collapses" (pdf), (H. Shinkai and Y. Yamada)
submitted to Int. J. Mod. Phys. D., as a proceedings of "2011 Shanghai Asia-Pacific School and Workshop on Gravitation (Shanghai, Feb. 2011)".
- "Constraint Propagation of C^2-adjusted formulation" (T. Tsuchiya, G. Yoneda and H. Shinkai)
was published as
Phys. Rev. D. 83, 064032 (2011) [10pages];
- 2011 Shanghai Asia-Pacific School and Workshop on Gravitation (Shanghai)
Talk, Gravitational Collapse in Five-dimensional Space-time
- "Formation of
Naked Singularities in Five-dimensional Space-time" (Y. Yamada and H. Shinkai)
was published as
Phys. Rev. D. 83, 064006 (2011) [5 pages];
- A popular book, "Time Machine and Science of Space-time" (H. Shinkai, Natsume Publishing Co., 2011;
ISBN: 978-4-8163-5025-2) was published.
- A textbook,
Ordinary Differential Equations with Applications: A Structured Approach (H.Shinkai, Kyoritsu Publishing Co., 2010; ISBN978-4-320-01879-2) was published.
- "Black Objects and Hoop Conjecture in Five-dimensional Space-time" (Y. Yamada and H. Shinkai) [arXiv:0907.2570] was
published in Classical and Quantum Gravity 27 (2010) 045012 (15pages) ([pdf])
- "Formulations of the Einstein equations for numerical simulations" (H. Shinkai) [arXiv:0805.0068] was
published in Journal of Korean Physical Society 54 (2009) 2513-2528
- A textbook, Calculus with Applications: A Structured Approach (H.Shinkai, Kyoritsu Publishing Co., 2009; ISBN978-4-320-01879-2) was published.
- "N+1 Formulations in Einstein-Gauss-Bonnet gravity" (T. Torii and H. Shinkai) (pdf)
arXiv:0810.1790; Physical Review D 78, 084037 (2008) (13 pages)
- January 24-26, 2008, Shinkai gave a 2-hour lecture on Formulation Problem in Numerical Relativity at APCTP Winter School on Black Hole Astrophysics 2008 (Daejeon, Korea). Lecture Notes
- "Numerical experiments of adjusted BSSN systems for controlling constraint violations" (K. Kiuchi and H. Shinkai) arXiv:0711.3575; Physical Review D 77, 044010 (2008) (11 pages)
Post-doc opportunity in Japan (This is a general announcement.)
I would like to introduce
JSPS Postdoctoral Fellowship Program for Foreign Researchers
which is the standard PD program in Japan. JSPS (Japan Society for
the Promotion of Science) provides PD programs both for Japanese
and foreign young researchers, at anywhere in Japan (if the host
professor permits) with free his/her research topics, without any
duties. (sounds perfect, isn't it?)
In recent years, several Japanese universities have obtained their
special funds (such as COE (center of excellence) national fund), and announce their
temporal positions available. However, JSPS system is still the standard opportunity for post-doc
JSPS PD's terms are:
- period 12-24 months
- applicants must have PhD when he/she starts PD in Japan
- A round-trip air ticket, domestic research travel allowance, etc.
- A monthly maintenance allowance of 362,000 yen (sufficient for living expenses in Japan)
- research grant (upto 1.5 M yen/year).
Please refer more details at
The application is supposed to be submitted by a host researcher. This system rounds twice a year.
Copyright (c) Hisaaki Shinkai 2006-2015. All rights reserved.