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RZ Leonis Minoris Bridging between ER Ursae Majoris-Type Dwarf Nova and Novalike System
Taichi Kato, Ryoko Ishioka, Keisuke Isogai +64
We observed RZ LMi, which is renowned for the extremely (~19d) short supercycle and is a member of a small, unusual class of cataclysmic variables called ER UMa-type dwarf novae, i…
A New Milky Way Satellite Discovered In The Subaru/Hyper Suprime-Cam Survey
Daisuke Homma, Masashi Chiba, Sakurako Okamoto +16
We report the discovery of a new ultra-faint dwarf satellite companion of the Milky Way based on the early survey data from the Hyper Suprime-Cam Subaru Strategic Program. This new…
Discovery of A New Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-Major Axis, High Inclination TNOs and Centaurs
Ying-Tung Chen, Hsing Wen Lin, Matthew J. Holman +14
Although the majority of Centaurs are thought to have originated in the scattered disk, with the high-inclination members coming from the Oort cloud, the origin of the high inclina…
Prime Focus Spectrograph (PFS) for the Subaru Telescope: Overview, recent progress, and future perspectives
Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono +97
PFS (Prime Focus Spectrograph), a next generation facility instrument on the 8.2-meter Subaru Telescope, is a very wide-field, massively multiplexed, optical and near-infrared spec…
Metrology Camera System of Prime Focus Spectrograph for Subaru Telescope
Shiang-Yu Wang, Richard C. Y. Chou, Pin-Jie Huang +11
The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph designed for the prime focus of the 8.2m Subaru telescope. PFS will cover a 1.3 degree di…
The Current Status of Prime Focus Instrument of Subaru Prime Focus Spectrograph
Shiang-Yu Wang, Mark A. Schwochert, Pin-Jie Huang +23
The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph design for the prime focus of the 8.2m Subaru telescope. PFS will cover 1.3 degree diamet…
Repetitive Patterns in Rapid Optical Variations in the Nearby Black-hole Binary V404 Cygni
Mariko Kimura, Keisuke Isogai, Taichi Kato +65
How black holes accrete surrounding matter is a fundamental, yet unsolved question in astrophysics. It is generally believed that matter is absorbed into black holes via accretion…
OSSOS: IV. Discovery of a dwarf planet candidate in the 9:2 resonance with Neptune
Michele T. Bannister, Mike Alexandersen, Susan D. Benecchi +32
We report the discovery and orbit of a new dwarf planet candidate, 2015 RR, by the Outer Solar System Origins Survey (OSSOS). 2015 RR's orbit is eccentric ($e=0.586…
Galaxy-scale gravitational lens candidates from the Hyper Suprime-Cam imaging survey and the Galaxy And Mass Assembly spectroscopic survey
James H. H. Chan, Sherry H. Suyu, Anupreeta More +13
We present a list of galaxy-scale lens candidates including a highly probable interacting galaxy-scale lens in the Hyper Suprime-Cam (HSC) imaging survey. We combine HSC imaging wi…