Last Update 2018/08/15
How does the scenery look like beyond that mountain? What kind of world may we encounter beyond the horizon? Our adventurous nature and curious mind has led us to observe the universe since ancient times. I am one of the drifters setting out to discover a new world in this long history of exploration. At the University of California, I have been studying the cosmological parameters that shape the universe today. We measured the baryon to photon ratio at one second after the Big Bang using the latest instrument on the 10-m Keck Telescope. With the Supernova Cosmology Project team, I studied dark energy using distant supernovae with the Hubble Space Telescope. We observationally proved the existence of non-zero dark energy with a 99.999% confidence level and probed the expansion history of the universe―turned into the acceleration from the deceleration―about 7 billion years ago. At Kavli IPMU, I would like to study the mysteries of dark energy and explore the deepest universe, which no one has seen before using the new instruments on the Subaru telescope. I am fascinated by the fact that all of the genius minds around the world come together as one mind and attempt to unlock the mysteries of the universe, and I find that the future of mankind is full of hope. I do believe that the next generation telescope will find a life form in the universe that would change the world in the near future.
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