Inoue, M., Algaba-Marcos, J. C., Asada, K., Chen, C. P., Chen, M. T., Koch, P., Ho, P., Huang, T., Lin, K. Y., Martin-Cocher, P., Nakamura, M., Pradel, N., Raffin, P., Matsushita, S., Blundell, R., Moran, James M., Doeleman, S., Fish, V., Brisken, W., Napier, P., Sun, W. -H, Xu, C. K., Scoville, N. Z., and Sanders, D. B. 2013. "Direct Imaging of Super Massive Black Hole Shadow." In , , 295.
Formation of Super Massive Black Hole (SMBH) at the center of galaxy is a big quest on the evolution process of galaxy. Very Long Baseline Interferometry (VLBI) observations are now capable to confirm directly the existence of SMBH by detecting the shadow image of it. VLBI could also provide a chance to see merging SMBHs. Sub-millimeter VLBI group in ASIAA is planning to provide a new VLBI station to give better performance of the submm VLBI network. The promising site is in Greenland, where it is expected to make single dish observations at THz regions.