Multi-Wavelength Study of Active Galaxies in the Violent Epoch

2015 Fiscal Year Final Research Report

• Project/Area Number: 23244040
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: MATSUHARA HIDEO 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (30219464)
• Co-Investigator(Kenkyū-buntansha): OYABU Shinki 名古屋大学, 大学院理学研究科, 助教 (10396806)
• Co-Investigator(Renkei-kenkyūsha): WADA Takehiko 宇宙航空研究開発機構, 宇宙科学研究所, 助教 (50312202)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 光学赤外線天文学 / X線γ線天文学 / 電波天文学

Outline of Final Research Achievements

7-10 billion years ago, the Universe was rich in infrared bright galaxies, which exhibited much more active star-formation (starburst) and super-massive black-hole (SMBH) accretion than present (violent epoch). Regarding the energy source, however, separation between the starburst and SMBH accretion has not precisely done yet.
In this research based on the infrared galaxies in the North Ecliptic Pole deep field, we obtained new X-ray, submm, and optical spectroscopic data for numerous infrared galaxies observed with an infrared space telescope AKARI. As a result, it is revealed that significant fraction of infrared galaxies in the violent epoch harbor dust obscured active galactic nuclei.

Free Research Field

赤外線天文学