Nominated as an outstanding PhD thesis by the Department of Astronomy, The University of Tokyo Includes a concise review of recent millimeter/submillimeter astronomy on active galactic nuclei Focuses on explaining the growth mechanism of supermassive black holes Provides unique guidance on how to use the Atacama Large Millimeter/submillimeter Array in active galactic nuclei research

Autorentext
Takuma Izumi is a National Astronomical Observatory of Japan (NAOJ) fellow engaged in millimeter/submillimeter investigations of actively mass accreting supermassive black holes (SMBHs). He has particularly studied mass fueling and obscuring mechanisms of those SMBHs in the nearby universe. He is currently also studying the star formation properties of galaxies hosting SMBHs at high redshift universe in order to understand their evolutionary links. He received his B.A. from the School of Science, M.A. in Astronomy and Ph.D. in Astronomy from The University of Tokyo in 2012, 2014 and 2016 respectively. During his M.A., he received a number of prize and awards: 1st prize in the AP-RASC 2013 Student Paper Competition in 2013, and Presidents' and Research Awards for AY 2014 from The University of Tokyo and the School of Science at The University of Tokyo, respectively. From 2014 to 2016, he was awarded a research fellowship for young scientists by the Japan Society for Promotion of Science(JSPS), and his research during his Ph.D. was supported by JSPS.

Inhalt
Introduction: The Active Trinity in the Centers of Galaxies.- AGN Feedback on the CND-scale Molecular Gas: Submillemeter HCN Enhancement as a New Extinction Free Energy Diagnostic Tool.- Non-detection of Another Extinction-Free Proxy of Active Nuclei, Submillimeter Hydrogen Recombination Lines.- CND-scale AGN fueling: Do CNDs Drive the Growth of Supermassive Black Holes?.- Summary and Future Outlook.<p