Atacama Large Millimeter/submillimeter Array – Taiwan
You-Hua Chu1*
1Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
* Presenter:You-Hua Chu, email:yhchu@asiaa.sinica.edu.tw
The Atacama Large Millimeter/submillimeter Array (ALMA) is the largest ground-based telescope facility ever built on Earth. It was completed in 2013 and made a transition from the construction phase to operation phase. ALMA has three major partners: North America (NA), Europe (EU), and East Asia (EA). Taiwan has joined through both EA and NA, and astronomers in Taiwan have consistently performed above-average in the proposal competition for ALMA observing time. Taiwan has made important instrumental contributions to ALMA during the construction phase, and continues to make strides in contributing in sciences, instruments, and software. Currently, ALMA-Taiwan is engaged in the following activities: (1) leading the development and production of ALMA Band 1 receivers, (2) deploying the Greenland Telescope to Thule Air Force Base in Greenland to be used with ALMA in the Very Long Baseline Interferometer (VLBI) mode to increase the angular resolution by 2 orders of magnitude, (3) developing software for processing and analyzing the ALMA data to facilitate rapid and accurate data analyses for scientific output. Scientifically, ALMA-Taiwan has made exciting discoveries in a range of astronomical problems, such as: detailed accretion and jet processes in star formation, Einstein ring from strong gravitational lensing, spiral shell structure in mass loss from evolved stars in binary systems, obscured star-forming galaxies in the young universe. More future discoveries are in store, especially from using ALMA and Greenland telescope in the VLBI mode to resolve the shadow M87’s supermassive black hole.


Keywords: 科技部物理學門專題計畫, ALMA, Radio facility and science