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

Hiroaki Aihara; Yusra Alsayyad; Makoto Ando; Robert Armstrong; James Bosch; Eiichi Egami; Hisanori Furusawa; Junko Furusawa; Andy Goulding; Yuichi Harikane; Chiaki Hikage; Paul T.P. Ho; Bau Ching Hsieh; Song Huang; Hiroyuki Ikeda; Masatoshi Imanishi; Kei Ito; Ikuru Iwata; Anton T. Jaelani; Ryota Kakuma; Kojiro Kawana; Satoshi Kikuta; Umi Kobayashi; Michitaro Koike; Yutaka Komiyama; Xiangchong Li; Yongming Liang; Yen Ting Lin; Wentao Luo; Robert Lupton; Nate B. Lust; Lauren A. Macarthur; Yoshiki Matsuoka; Sogo Mineo; Hironao Miyatake; Satoshi Miyazaki; Surhud More; Ryoma Murata; Shigeru V. Namiki; Atsushi J. Nishizawa; Masamune Oguri; Nobuhiro Okabe; Sakurako Okamoto; Yuki Okura; Yoshiaki Ono; Masato Onodera; Masafusa Onoue; Ken Osato; Masami Ouchi; Takatoshi Shibuya; Michael A. Strauss; Naoshi Sugiyama; Yasushi Suto; Masahiro Takada; Yuhei Takagi; Tadafumi Takata; Satoshi Takita; Masayuki Tanaka; Tsuyoshi Terai; Yoshiki Toba; Hisakazu Uchiyama; Yousuke Utsumi; Shiang Yu Wang; Wenting Wang; Yoshihiko Yamada

doi:10.1093/pasj/psz103

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

Hiroaki Aihara, Yusra Alsayyad, Makoto Ando, Robert Armstrong, James Bosch, Eiichi Egami, Hisanori Furusawa, Junko Furusawa, Andy Goulding, Yuichi Harikane, Chiaki Hikage, Paul T.P. Ho, Bau Ching Hsieh, Song Huang, Hiroyuki Ikeda, Masatoshi Imanishi, Kei Ito, Ikuru Iwata, Anton T. Jaelani, Ryota KakumaKojiro Kawana, Satoshi Kikuta, Umi Kobayashi, Michitaro Koike, Yutaka Komiyama, Xiangchong Li, Yongming Liang, Yen Ting Lin, Wentao Luo, Robert Lupton, Nate B. Lust, Lauren A. Macarthur, Yoshiki Matsuoka, Sogo Mineo, Hironao Miyatake, Satoshi Miyazaki, Surhud More, Ryoma Murata, Shigeru V. Namiki, Atsushi J. Nishizawa, Masamune Oguri, Nobuhiro Okabe, Sakurako Okamoto, Yuki Okura, Yoshiaki Ono, Masato Onodera, Masafusa Onoue, Ken Osato, Masami Ouchi, Takatoshi Shibuya, Michael A. Strauss, Naoshi Sugiyama, Yasushi Suto, Masahiro Takada, Yuhei Takagi, Tadafumi Takata, Satoshi Takita, Masayuki Tanaka, Tsuyoshi Terai, Yoshiki Toba, Hisakazu Uchiyama, Yousuke Utsumi, Shiang Yu Wang, Wenting Wang, Yoshihiko Yamada

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Abstract

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. The release includes data from 174 nights of observation through 2018 January. The Wide layer data cover about 300 deg² 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 deg² is observed in at least one filter and one exposure. The median seeing in the i-band is 0.^''6, demonstrating the superb image quality of the survey. The Deep (26 deg²) and UltraDeep (4 deg²) data are jointly processed and the UltraDeep-COSMOS field reaches an unprecedented depth of i ∼ 28 at 5 σ 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 deg²). All products are available at the data release site, https://hsc-release.mtk.nao.ac.jp/.

Original language	English (US)
Article number	114
Journal	Publications of the Astronomical Society of Japan
Volume	71
Issue number	6
DOIs	https://doi.org/10.1093/pasj/psz103
State	Published - 2019

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Astronomical databases: miscellaneous
Cosmology: observations
Galaxies: general
Surveys

Access to Document

10.1093/pasj/psz103

Cite this

Aihara, H., Alsayyad, Y., Ando, M., Armstrong, R., Bosch, J., Egami, E., Furusawa, H., Furusawa, J., Goulding, A., Harikane, Y., Hikage, C., Ho, P. T. P., Hsieh, B. C., Huang, S., Ikeda, H., Imanishi, M., Ito, K., Iwata, I., Jaelani, A. T., ... Yamada, Y. (2019). Second data release of the Hyper Suprime-Cam Subaru Strategic Program. Publications of the Astronomical Society of Japan, 71(6), Article 114. https://doi.org/10.1093/pasj/psz103

@article{ed3a9076e4304b71a9ffb6d19094a22d,

title = "Second data release of the Hyper Suprime-Cam Subaru Strategic Program",

abstract = "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. The release includes data from 174 nights of observation through 2018 January. The Wide layer data cover about 300 deg2 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 deg2 is observed in at least one filter and one exposure. The median seeing in the i-band is 0.''6, demonstrating the superb image quality of the survey. The Deep (26 deg2) and UltraDeep (4 deg2) data are jointly processed and the UltraDeep-COSMOS field reaches an unprecedented depth of i ∼ 28 at 5 σ 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 deg2). All products are available at the data release site, https://hsc-release.mtk.nao.ac.jp/.",

keywords = "Astronomical databases: miscellaneous, Cosmology: observations, Galaxies: general, Surveys",

author = "Hiroaki Aihara and Yusra Alsayyad and Makoto Ando and Robert Armstrong and James Bosch and Eiichi Egami and Hisanori Furusawa and Junko Furusawa and Andy Goulding and Yuichi Harikane and Chiaki Hikage and Ho, {Paul T.P.} and Hsieh, {Bau Ching} and Song Huang and Hiroyuki Ikeda and Masatoshi Imanishi and Kei Ito and Ikuru Iwata and Jaelani, {Anton T.} and Ryota Kakuma and Kojiro Kawana and Satoshi Kikuta and Umi Kobayashi and Michitaro Koike and Yutaka Komiyama and Xiangchong Li and Yongming Liang and Lin, {Yen Ting} and Wentao Luo and Robert Lupton and Lust, {Nate B.} and Macarthur, {Lauren A.} and Yoshiki Matsuoka and Sogo Mineo and Hironao Miyatake and Satoshi Miyazaki and Surhud More and Ryoma Murata and Namiki, {Shigeru V.} and Nishizawa, {Atsushi J.} and Masamune Oguri and Nobuhiro Okabe and Sakurako Okamoto and Yuki Okura and Yoshiaki Ono and Masato Onodera and Masafusa Onoue and Ken Osato and Masami Ouchi and Takatoshi Shibuya and Strauss, {Michael A.} and Naoshi Sugiyama and Yasushi Suto and Masahiro Takada and Yuhei Takagi and Tadafumi Takata and Satoshi Takita and Masayuki Tanaka and Tsuyoshi Terai and Yoshiki Toba and Hisakazu Uchiyama and Yousuke Utsumi and Wang, {Shiang Yu} and Wenting Wang and Yoshihiko Yamada",

year = "2019",

doi = "10.1093/pasj/psz103",

language = "English (US)",

volume = "71",

journal = "Publications of the Astronomical Society of Japan",

issn = "0004-6264",

publisher = "Astronomical Society of Japan",

number = "6",

}

Aihara, H, Alsayyad, Y, Ando, M, Armstrong, R, Bosch, J, Egami, E, Furusawa, H, Furusawa, J, Goulding, A, Harikane, Y, Hikage, C, Ho, PTP, Hsieh, BC, Huang, S, Ikeda, H, Imanishi, M, Ito, K, Iwata, I, Jaelani, AT, Kakuma, R, Kawana, K, Kikuta, S, Kobayashi, U, Koike, M, Komiyama, Y, Li, X, Liang, Y, Lin, YT, Luo, W, Lupton, R, Lust, NB, Macarthur, LA, Matsuoka, Y, Mineo, S, Miyatake, H, Miyazaki, S, More, S, Murata, R, Namiki, SV, Nishizawa, AJ, Oguri, M, Okabe, N, Okamoto, S, Okura, Y, Ono, Y, Onodera, M, Onoue, M, Osato, K, Ouchi, M, Shibuya, T, Strauss, MA, Sugiyama, N, Suto, Y, Takada, M, Takagi, Y, Takata, T, Takita, S, Tanaka, M, Terai, T, Toba, Y, Uchiyama, H, Utsumi, Y, Wang, SY, Wang, W & Yamada, Y 2019, 'Second data release of the Hyper Suprime-Cam Subaru Strategic Program', Publications of the Astronomical Society of Japan, vol. 71, no. 6, 114. https://doi.org/10.1093/pasj/psz103

TY - JOUR

T1 - Second data release of the Hyper Suprime-Cam Subaru Strategic Program

AU - Aihara, Hiroaki

AU - Alsayyad, Yusra

AU - Ando, Makoto

AU - Armstrong, Robert

AU - Bosch, James

AU - Egami, Eiichi

AU - Furusawa, Hisanori

AU - Furusawa, Junko

AU - Goulding, Andy

AU - Harikane, Yuichi

AU - Hikage, Chiaki

AU - Ho, Paul T.P.

AU - Hsieh, Bau Ching

AU - Huang, Song

AU - Ikeda, Hiroyuki

AU - Imanishi, Masatoshi

AU - Ito, Kei

AU - Iwata, Ikuru

AU - Jaelani, Anton T.

AU - Kakuma, Ryota

AU - Kawana, Kojiro

AU - Kikuta, Satoshi

AU - Kobayashi, Umi

AU - Koike, Michitaro

AU - Komiyama, Yutaka

AU - Li, Xiangchong

AU - Liang, Yongming

AU - Lin, Yen Ting

AU - Luo, Wentao

AU - Lupton, Robert

AU - Lust, Nate B.

AU - Macarthur, Lauren A.

AU - Matsuoka, Yoshiki

AU - Mineo, Sogo

AU - Miyatake, Hironao

AU - Miyazaki, Satoshi

AU - More, Surhud

AU - Murata, Ryoma

AU - Namiki, Shigeru V.

AU - Nishizawa, Atsushi J.

AU - Oguri, Masamune

AU - Okabe, Nobuhiro

AU - Okamoto, Sakurako

AU - Okura, Yuki

AU - Ono, Yoshiaki

AU - Onodera, Masato

AU - Onoue, Masafusa

AU - Osato, Ken

AU - Ouchi, Masami

AU - Shibuya, Takatoshi

AU - Strauss, Michael A.

AU - Sugiyama, Naoshi

AU - Suto, Yasushi

AU - Takada, Masahiro

AU - Takagi, Yuhei

AU - Takata, Tadafumi

AU - Takita, Satoshi

AU - Tanaka, Masayuki

AU - Terai, Tsuyoshi

AU - Toba, Yoshiki

AU - Uchiyama, Hisakazu

AU - Utsumi, Yousuke

AU - Wang, Shiang Yu

AU - Wang, Wenting

AU - Yamada, Yoshihiko

PY - 2019

Y1 - 2019

N2 - 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. The release includes data from 174 nights of observation through 2018 January. The Wide layer data cover about 300 deg2 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 deg2 is observed in at least one filter and one exposure. The median seeing in the i-band is 0.''6, demonstrating the superb image quality of the survey. The Deep (26 deg2) and UltraDeep (4 deg2) data are jointly processed and the UltraDeep-COSMOS field reaches an unprecedented depth of i ∼ 28 at 5 σ 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 deg2). All products are available at the data release site, https://hsc-release.mtk.nao.ac.jp/.

AB - 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. The release includes data from 174 nights of observation through 2018 January. The Wide layer data cover about 300 deg2 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 deg2 is observed in at least one filter and one exposure. The median seeing in the i-band is 0.''6, demonstrating the superb image quality of the survey. The Deep (26 deg2) and UltraDeep (4 deg2) data are jointly processed and the UltraDeep-COSMOS field reaches an unprecedented depth of i ∼ 28 at 5 σ 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 deg2). All products are available at the data release site, https://hsc-release.mtk.nao.ac.jp/.

KW - Astronomical databases: miscellaneous

KW - Cosmology: observations

KW - Galaxies: general

KW - Surveys

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UR - http://www.scopus.com/inward/citedby.url?scp=85083055204&partnerID=8YFLogxK

U2 - 10.1093/pasj/psz103

DO - 10.1093/pasj/psz103

M3 - Article

AN - SCOPUS:85083055204

SN - 0004-6264

VL - 71

JO - Publications of the Astronomical Society of Japan

JF - Publications of the Astronomical Society of Japan

IS - 6

M1 - 114

ER -

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

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