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19 papers
Final results for mapping the Milky Way's stellar halo with blue horizontal-branch stars selected from the Subaru Hyper Supreme-Cam Survey
Tetsuya Fukushima, Masashi Chiba, Mikito Tanaka +7
We select blue-horizontal branch stars (BHBs) from the internal data release of the Hyper Suprime-Cam Subaru Strategic Program to reveal the global structure of the Milky Way (MW)…
Uncovering the Ghostly Remains of an Extremely Diffuse Satellite in the Remote Halo of NGC 253
Sakurako Okamoto, Annette M. N. Ferguson, Nobuo Arimoto +12
We present the discovery of NGC253-SNFC-dw1, a new satellite galaxy in the remote stellar halo of the Sculptor Group spiral, NGC 253. The system was revealed using deep resolved st…
Luminosity Functions of the Host Galaxies of Supernova
Zhuoxi Liang, Nao Suzuki, Mamoru Doi +2
We present the luminosity functions and stellar mass functions of supernova (SN) host galaxies and test if they differ from the functions of normal field galaxies. We utilize homog…
The structure of the stellar halo of the Andromeda galaxy explored with the NB515 for Subaru/HSC. I.: New Insights on the stellar halo up to 120 kpc
Itsuki Ogami, Mikito Tanaka, Yutaka Komiyama +16
We analyse the M31 halo and its substructure within a projected radius of 120 kpc using a combination of Subaru/HSC and CFHT/MegaCam - \& -…
The Milky Way Tomography with Subaru Hyper Suprime-Cam. I. Halo substructures
Yoshihisa Suzuki, Masashi Chiba, Yutaka Komiyama +7
We analyze the photometric data in the Wide layer of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) over deg to uncover new halo substructures beyond t…
Final Results of Search for New Milky Way Satellites in the Hyper Suprime-Cam Subaru Strategic Program Survey: Discovery of Two More Candidates
Daisuke Homma, Masashi Chiba, Yutaka Komiyama +11
We present the final results of our search for new Milky Way (MW) satellites using the data from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) survey over …
MUSSES2020J: The Earliest Discovery of a Fast Blue Ultraluminous Transient at Redshift 1.063
Ji-an Jiang, Naoki Yasuda, Keiichi Maeda +22
In this Letter, we report the discovery of an ultraluminous fast-evolving transient in rest-frame UV wavelengths, MUSSES2020J, soon after its occurrence by using the Hyper Suprime-…
Cosmological inference from the emulator based halo model II: Joint analysis of galaxy-galaxy weak lensing and galaxy clustering from HSC-Y1 and SDSS
Hironao Miyatake, Sunao Sugiyama, Masahiro Takada +25
We present high-fidelity cosmology results from a blinded joint analysis of galaxy-galaxy weak lensing () and projected galaxy clustering () measured from the Hype…
Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Hiroaki Aihara, Yusra AlSayyad, Makoto Ando +64
The paper presents the third data release of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP), a wide-field multi-band imaging survey with the Subaru 8.2m telescope. HSC-SSP ha…
Boötes IV: A New Milky Way Satellite Discovered in the Subaru Hyper Suprime-Cam Survey and Implications for the Missing Satellite Problem
Daisuke Homma, Masashi Chiba, Yutaka Komiyama +13
We report on the discovery of a new Milky Way (MW) satellite in Boötes based on data from the on-going Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP). This satellite, named…
Tidal Features at 0.05<z<0.45 in the Hyper Suprime-Cam Subaru Strategic Program: Properties and Formation Channels
Erin Kado-Fong, Jenny E. Greene, David Hendel +10
We present 1,201 galaxies at that host tidal features, detected from the first deg of imaging from the Hyper Suprime-Cam Subaru Strategic Program (HS…
Stellar Stream and Halo Structure in the Andromeda Galaxy From a Subaru/Hyper Suprime-Cam Survey
Yutaka Komiyama, Masashi Chiba, Mikito Tanaka +13
We present wide and deep photometry of the northwest part of the halo of the Andromeda galaxy (M31) using Hyper Suprime-Cam on the Subaru Telescope. The survey covers 9.2 deg…
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…
Subaru Hyper Suprime-Cam Survey for An Optical Counterpart of GW170817
Nozomu Tominaga, Masaomi Tanaka, Tomoki Morokuma +31
We perform a -band survey for an optical counterpart of a binary neutron star coalescence GW170817 with Subaru/Hyper Suprime-Cam. Our untargeted transient search covers d…
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…
Sumo Puff: Tidal Debris or Disturbed Ultra-Diffuse Galaxy?
Johnny P. Greco, Jenny E. Greene, Adrian M. Price-Whelan +10
We report the discovery of a diffuse stellar cloud with an angular extent , which we term "Sumo Puff", in data from the Hyper Suprime-Cam Subaru Strategic…
The Quasar Luminosity Function at Redshift 4 with Hyper Suprime-Cam Wide Survey
Masayuki Akiyama, Wanqiu He, Hiroyuki Ikeda +24
We present the luminosity function of z=4 quasars based on the Hyper Suprime-Cam Subaru Strategic Program Wide layer imaging data in the g, r, i, z, and y bands covering 339.8 deg^…
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…
The Seventh Data Release of the Sloan Digital Sky Survey
K. Abazajian
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDS…