Development of software for polarization spectrum analysis for next-generation low-frequency radio telescope
| Project/Area Number |
26610048
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Astronomy
|
|---|
| Research Institution | Kumamoto University |
|---|
Principal Investigator |
Takahashi Keitaro 熊本大学, 大学院先端科学研究部(理), 准教授 (80547547)
|
|---|
| Project Period (FY) |
2014-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
|---|
| Keywords | 宇宙磁場 / 電波天文学 / スパースモデリング / Square Kilometre Array / 偏波 / マルコフ連鎖モンテカルロ法 / トモグラフィ |
|---|
| Outline of Final Research Achievements |
We conducted research on the Faraday tomography method which is a new radio astronomy method for exploring the three dimensional structure of the astrophysical magnetic field and the magnetic field in the intergalactic space and developed software for polarization analysis. By participating in Australia's low frequency radio telescope ASKAP and MWA as a member, we promoted software development, performance testing, physical interpretation etc. In particular, we performed performance tests of Faraday tomography standard algorithms called RM CLEAN and QU - fit, and simulated in what situations these algorithms work effectively. In order to compensate for the disadvantages of these methods, we developed software using advanced algorithms such as sparse modeling.
|
Report
(5 results)
Research Products
(25 results)
-
-
-
-
-
-
-
-
[Journal Article] Cosmic magnetism in centimeter- and meter-wavelength radio astronomy2017
Author(s)
Akahori Takuya、Nakanishi Hiroyuki、Sofue Yoshiaki、Fujita Yutaka、Ichiki Kiyotomo、Ideguchi Shinsuke、Kameya Osamu、Kudoh Takahiro、Kudoh Yuki、Machida Mami、Miyashita Yoshimitsu、Ohno Hiroshi、Ozawa Takeaki、Takahashi Keitaro、Takizawa Motokazu、Yamazaki Dai G
-
Journal Title
Publications of the Astronomical Society of Japan
Volume: 70
Issue: 1
Pages: 1-44
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
[Journal Article] Using rotation measure grids to detect cosmological magnetic fields -- a Bayesian approach2016
Author(s)
V. Vacca, N. Oppermann, T. Ensslin, J. Jasche, M. Selig, M. Greiner, H. Junklewitz, M. Reinecke, M. Brueggen, E. Carretti, L. Feretti, C. Ferrari, C. A. Hales, C. Horellou, S. Ideguchi, M. Johnston-Hollitt, R. F. Pizzo, H. Roettgering, T. W. Shimwell and K. Takahashi
-
Journal Title
Astronomy & Astrophysics
Volume: 未定
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
-
-
-
[Journal Article] Studying 21cm power spectrum with one-point statistics2015
Author(s)
Hayato Shimabukuro, Shintaro Yoshiura, Keitaro Takahashi, Shuichiro Yokoyama and Kiyotomo Ichiki,
-
Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: 451
Issue: 1
Pages: 467-474
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
-
-
-
-
-
-
-
-
-
