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Title: Second data release of the Hyper Suprime-Cam Subaru Strategic Program

Journal Article · · Publications of the Astronomical Society of Japan
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  1. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan
  2. Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA
  3. Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  4. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94551, USA
  5. Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA
  6. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
  7. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan
  8. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan
  9. Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C
  10. Department of Astronomy and Astrophysics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
  11. Department of Astronomy, School of Science, Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
  12. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Department of Astronomy, School of Science, Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
  13. Department of Physics, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
  14. Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan
  15. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  16. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan; Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  17. Research Center for Space and Cosmic Evolution, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
  18. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan; Institute for Advanced Research, Nagoya University, Furocho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan; Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
  19. Inter University Centre for Astronomy and Astrophysics, Ganeshkhind, Pune 411007, India
  20. Institute for Advanced Research, Nagoya University, Furocho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan; Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
  21. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan; Research Center for the Early Universe, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  22. Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan
  23. Subaru Telescope, National Astronomical Observatory of Japan, 650 N A'ohoku Pl, Hilo, HI 96720, USA
  24. Max Planck Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
  25. Institut d’Astrophysique de Paris, Sorbonne Université, CNRS, UMR 7095, 98 bis boulevard Arago, 75014 Paris, France
  26. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan; Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan
  27. Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
  28. Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan; Department of Physics and Astrophysics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
  29. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Research Center for the Early Universe, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  30. Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
  31. Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, 2575 Sand Hill Road, M/S 29, Menlo Park, CA 94025, USA
+ Show Author Affiliations

This paper presents the second data release of the Hyper Suprime-Cam Subaru Strategic Program, a wide-field optical imaging survey using the 8.2 m Subaru Telescope. We report the release includes data from 174 nights of observation through 2018 January. The Wide layer data cover about 300 deg$^2$ in all five broad-band filters ($grizy$) to the nominal survey exposure (10 min in $gr$ and 20 min in $izy$). Partially observed areas are also included in the release; about 1100 deg$^2$ is observed in at least one filter and one exposure. The median seeing in the i-band is $${0_{.}^{\prime \prime }6}$$, demonstrating the superb image quality of the survey. The Deep (26 deg$^2$) and UltraDeep (4 deg$^2$) data are jointly processed and the UltraDeep-COSMOS field reaches an unprecedented depth of $$i\sim 28$$ at $$5 \, \sigma$$ for point sources. In addition to the broad-band data, narrow-band data are also available in the Deep and UltraDeep fields. This release includes a major update to the processing pipeline, including improved sky subtraction, PSF modeling, object detection, and artifact rejection. The overall data quality has been improved, but this release is not without problems; there is a persistent deblender problem as well as new issues with masks around bright stars. The user is encouraged to review the issue list before utilizing the data for scientific explorations. All the image products as well as catalog products are available for download. The catalogs are also loaded into a database, which provides an easy interface for users to retrieve data for objects of interest. In addition to these main data products, detailed galaxy shape measurements withheld from Public Data Release 1 (PDR1) are now available to the community. The shape catalog is drawn from the S16A internal release, which has a larger area than PDR1 (160 deg$^2$). All products are available at the data release site, https://hsc-release.mtk.nao.ac.jp/.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); Gordon and Betty Moore Foundation; Alfred P. Sloan Foundation; Ministry of Education, Culture, Sports, Science and Technology (MEXT); Japan Society for the Promotion of Science (JSPS); Japan Science and Technology Agency (JST); Toray Science Foundation; National Astronomical Observatory of Japan (NAOJ); Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU); High Energy Accelerator Research Organization (KEK); Academia Sinica Institute for Astronomy and Astrophysics in Taiwan (ASIAA); Princeton University
Contributing Organization:
Hyper Suprime-Cam (HSC) Collaboration
Grant/Contract Number:
AC02-76SF00515; 15H05887; 15H05892; 15H05893; NNX08AR22G; NAS5-26555; NNG04GC89G; Spitzer-1356708; 08-ADP08-0019; NNX09AC95G; AST-1238877; AST-95-09298; AST-0071048; AST-0507428; AST-0507483; AST-0607701; AST-0908246; AST-0908442; AST-0908354; AST-0808133; AST-0807630; AST-0806732
OSTI ID:
1571347
Alternate ID(s):
OSTI ID: 1604746
Journal Information:
Publications of the Astronomical Society of Japan, Vol. 71, Issue 6; ISSN 0004-6264
Publisher:
Astronomical Society of JapanCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 283 works
Citation information provided by
Web of Science

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Cited By (7)

Evidence for a Highly Opaque Large-scale Galaxy Void at the End of Reionization journal December 2019
Observational Nonstationarity of AGN Variability: The Only Way to Go Is Down! journal January 2020
Varstrometry for Off-nucleus and Dual Subkiloparsec AGN (VODKA): Methodology and Initial Results with Gaia DR2 journal January 2020
Balmer Break Galaxy Candidates at z ∼ 6: A Potential View on the Star Formation Activity at z ≳ 14 journal February 2020
Evidence for a highly opaque large-scale galaxy void at the end of reionization text January 2019
Observational nonstationarity of AGN variability: The only way to go is down! text January 2020
First Identification of a CMB Lensing Signal Produced by $1.5$ Million Galaxies at $z\sim$4: Constraints on Matter Density Fluctuations at High Redshift text January 2021

Figures / Tables (28)

Fig. 1(p. 5)figure Fig. 1
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Fig. 3(p. 6)figure Fig. 3
Table 1(p. 6)table Table 1
Table 2(p. 7)table Table 2
Table 3(p. 7)table Table 3
Fig. 4(p. 9)figure Fig. 4
Fig. 5(p. 9)figure Fig. 5
Fig. 6(p. 9)figure Fig. 6
Fig. 7(p. 10)figure Fig. 7
Fig. 8(p. 11)figure Fig. 8
Fig. 9(p. 12)figure Fig. 9
Fig. 10(p. 15)figure Fig. 10
Table 4(p. 15)table Table 4
Fig. 11(p. 17)figure Fig. 11
Fig. 12(p. 17)figure Fig. 12
Fig. 13(p. 18)figure Fig. 13
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Fig. 22(p. 22)figure Fig. 22
Fig. 23(p. 23)figure Fig. 23
Table 5(p. 24)table Table 5

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