Science October 1, 2018

Cosmological Constraints from the First-Year of the Subaru Hyper Suprime-Cam Survey

Using the powerful Japanese Subaru Telescope, the Hyper Suprime-Cam (HSC) survey collaboration team has made and analyzed the deepest wide-field map of the three-dimensional distribution of matter in the Universe.

Science September 4, 2018

Veiled Supernovae Provide Clue to Stellar Evolution

At the end of its life, a red supergiant star explodes in a hydrogen-rich supernova. By comparing observation results to simulation models, an international research team found that in many cases this explosion takes place inside a thick cloud of circumstellar matter shrouding the star.

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Science September 4, 2018

Falling Stars hold Clue for Understanding Dying Stars

An international team of researchers has proposed a new method to investigate the inner workings of supernovae explosions. This new method uses meteorites and is unique in that it can determine the contribution from electron anti-neutrinos, enigmatic particles which can’t be tracked through other means.

Science August 30, 2018

Unstoppable Monster in the Early Universe - ALMA obtains most detailed view of distant starburst galaxy

Astronomers obtained the most detailed anatomy chart of a monster galaxy located 12.4 billion light-years away. Using ALMA, the team revealed that the molecular clouds in the galaxy are highly unstable, which leads to runaway star formation.

Science July 13, 2018

Subaru Telescope Helps Pinpoint Origin of Ultra-High Energy Neutrino

For the first time, the source object which produced an ultra-high energy neutrino has been identified.

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Science June 29, 2018

New Mystery Discovered Regarding Active Asteroid Phaethon

Based on a new study of how near-Earth asteroid Phaethon reflects light at different angles, astronomers think that its surface may reflect less light than previously thought.

Science June 6, 2018

Magnetic Field Saves Pillars of Creation from Destruction

New 850 micrometer observations, taken as part of the BISTRO (B-Fields in Star-forming Region Observations) Survey using the POL-2 polarimeter on the SCUBA-2 camera of the James Clerk Maxwell Telescope (JCMT) show that the internal magnetic fields run along the length of the pillar.

Science May 17, 2018

ALMA Finds Oxygen 13.28 Billion Light-Years Away - Most Distant Oxygen Indicates Mature Nature of a Young Galaxy

Astronomers detected a faint but definite signal of oxygen in a galaxy located 13.28 billion light-years away from us, through observations using the Atacama Large Millimeter/submillimeter Array (ALMA).

Science March 13, 2018

Double or Nothing: Astronomers Rethink Quasar Environment

Using Hyper Suprime-Cam (HSC) mounted on the Subaru Telescope, astronomers have identified nearly 200 “protoclusters,”the progenitors of galaxy clusters, in the early Universe, about 12 billion years ago.

Science March 2, 2018

Unprecedentedly wide and sharp dark matter map

Early science results from the Hyper Suprime-Cam Subaru Strategic Program are published as a special issue of the Publications of the Astronoical Society of Japan.