The Infrared Astrophysics Group is one of the astronomical research groups at the Institute of Astronomy, University of Tokyo. The group is led by Dr. Masuo Tanaka (Associate Professor, University of Tokyo), and the main constituents of the group are the past and the present graduate students of Tanaka Lab.
The office is located in the National Astronomical Observatory (NAO) at Mitaka, Tokyo. New building, which will be the home of the Institute of Astronomy, is under construction next to NAO, and we will officially move to the new building in the spring of 2000.
The research activities of the Near-Infrared Astrophysics Group can be devided into two main parts. The first is the development of new instruments. We are currently constructing a new multi-modes spectrograph called "NIEFA", the Near-Infrared spectrograph with Echelle, Fabry-Perot, and AOTF. The first light of NIEFA is set to the Fall of 2000, and new modes will be continuously added to the system thereafter.
The second part of the research activities is the observational astronomy using the data obtained with our instruments. The specific topics of astronomy depend on each member of the group, but topics generally fall into two categories: evolution and structure of individual stars (e.g. star forming regions, effects of mass loss, nuclearsynthesis, planetary nebulae) and galaxy-scale evolution of stars (e.g. initial mass function, enrichment of heavy elements in a galaxy by supernovae and stellar wind). The Infrared Simulator (IRSim) of NAO at Mitaka, as well as telescopes in the southern hemisphere, are used for the observation.
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