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Structure of the Milky Way stellar halo out to its outer boundary with blue horizontal-branch stars
Tetsuya Fukushima, Masashi Chiba, Daisuke Homma +6
We present the structure of the Milky Way stellar halo beyond Galactocentric distances of kpc traced by blue horizontal-branch (BHB) stars, which are extracted from the su…
Searches for New Milky Way Satellites from the First Two Years of Data of the Subaru/Hyper Suprime-Cam Survey: Discovery of Cetus~III
Daisuke Homma, Masashi Chiba, Sakurako Okamoto +12
We present the results from a search for new Milky Way (MW) satellites from the first two years of data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) ~d…
Identification of the white dwarf companion to millisecond pulsar J2317+1439
S. Dai, M. C. Smith, S. Wang +4
We report identification of the optical counterpart to the companion of the millisecond pulsar J2317+1439. At the timing position of the pulsar, we find an object with $g=22.96\pm0…
The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
H. Aihara, N. Arimoto, R. Armstrong +139
Hyper Suprime-Cam (HSC) is a wide-field imaging camera on the prime focus of the 8.2m Subaru telescope on the summit of Maunakea in Hawaii. A team of scientists from Japan, Taiwan…
Population gradient in Sextans dSph: Comprehensive mapping of a dwarf galaxy by Suprime-Cam
S. Okamoto, N. Arimoto, E. Tolstoy +5
We present the deep and wide and photometry of the Sextans dwarf spheroidal galaxy (dSph) taken by Suprime-Cam imager on the Subaru Telescope, which extends out to the ti…