| Research Collaborator |
HADA Kazuhiro 国立天文台, 水沢VLBI観測所, 助教 (60724458)
OSHIMA Tomohito 西はりま天文台, 研究員
SASADA Mahito 広島大学, 宇宙科学センター, 特任助教
TAZAKI Fumie 国立天文台, 水沢VLBI観測所, 特任研究員 (10800609)
AKIYAMA Kazunori マサチューセッツ工科大, ヘイスタック観測所, Jansky Felow
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| Budget Amount *help |
¥66,300,000 (Direct Cost: ¥51,000,000、Indirect Cost: ¥15,300,000)
Fiscal Year 2017: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2016: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2015: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2014: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2013: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
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| Outline of Final Research Achievements |
In order to obtain resolved images of super-massive black hole shadows, we developed super-resolution imaging techniques for radio interferometry based on sparse modeling. We applied newly-developed methods to existing observational data and confirmed its performance, and resolved the jet root structure at the nearest location from the super-massive black hole of M87. We realized the first observations with the international mm-VLBI network in April 2017. By applying our methods to the data, we successfully obtained the angular resolution high enough to resolve the black holes, and showed that imaging of black hole shadow is achievable. We also extended applications of sparse modeling to various types of astronomy data analyses, and demonstrated its effectiveness in general astronomy.
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