TY - JOUR
T1 - The Hyper Suprime-Cam SSP transient survey in COSMOS
T2 - Overview
AU - Yasuda, Naoki
AU - Tanaka, Masaomi
AU - Tominaga, Nozomu
AU - Jiang, Ji An
AU - Moriya, Takashi J.
AU - Morokuma, Tomoki
AU - Suzuki, Nao
AU - Takahashi, Ichiro
AU - Yamaguchi, Masaki S.
AU - Maeda, Keiichi
AU - Sako, Masao
AU - Ikeda, Shiro
AU - Kimura, Akisato
AU - Morii, Mikio
AU - Ueda, Naonori
AU - Yoshida, Naoki
AU - Lee, Chien Hsiu
AU - Suyu, Sherry H.
AU - Komiyama, Yutaka
AU - Regnault, Nicolas
AU - Rubin, David
N1 - Funding Information:
IT and NY acknowledge financial support from JST CREST (JPMHCR1414). NY is supported by the Grant-in-Aid for Scientific Research program of MEXT (18H04345). MT is supported by an Inoue Science Research Award from the Inoue Foundation for Science and the Grant-in-Aid for Scientific Research programs of JSPS (15H02075, 16H02183) and MEXT (17H06363).
Funding Information:
The Pan-STARRS1 Surveys (PS1) have been made possible through contributions by the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, Johns Hopkins University, Durham University, the University of Edinburgh, Queen’s University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration (under Grant No. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate), the National Science Foundation (under Grant No. AST-1238877), the University of Maryland, and Eotvos Lorand University (ELTE).
Funding Information:
The Hyper Suprime-Cam (HSC) collaboration includes the astronomical communities of Japan, Taiwan, and Princeton University. The HSC instrumentation and software were developed by the National Astronomical Observatory of Japan (NAOJ), the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), the University of Tokyo, the High Energy Accelerator Research Organization (KEK), the Academia Sinica Institute for Astronomy and Astrophysics in Taiwan (ASIAA), and Princeton University. Funding was contributed by the FIRST program from the Japanese Cabinet Office, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), the Japan Society for the Promotion of Science (JSPS), the Japan Science and Technology Agency (JST), the Toray Science Foundation, NAOJ, Kavli IPMU, KEK, ASIAA, and Princeton University.
Publisher Copyright:
© 2019 The Author(s). Published by Oxford University Press on behalf of the Astronomical Society of Japan.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - We present an overview of a deep transient survey of the COSMOS field with the Subaru Hyper Suprime-Cam (HSC). The survey was performed for the 1.77 deg2 ultra-deep layer and 5.78 deg2 deep layer in the Subaru Strategic Program over six- and four-month periods from 2016 to 2017, respectively. The ultra-deep layer reaches a median depth per epoch of 26.4, 26.3, 26.0, 25.6, and 24.6 mag in g, r, i, z, and y bands, respectively; the deep layer is ∼0.6 mag shallower. In total, 1824 supernova candidates were identified. Based on light-curve fitting and derived light-curve shape parameter, we classified 433 objects as Type Ia supernovae (SNe); among these candidates, 129 objects have spectroscopic or COSMOS2015 photometric redshifts and 58 objects are located at z > 1. Our unique data set doubles the number of Type Ia SNe at z > 1 and enables various time-domain analyses of Type II SNe, high-redshift superluminous SNe, variable stars, and active galactic nuclei.
AB - We present an overview of a deep transient survey of the COSMOS field with the Subaru Hyper Suprime-Cam (HSC). The survey was performed for the 1.77 deg2 ultra-deep layer and 5.78 deg2 deep layer in the Subaru Strategic Program over six- and four-month periods from 2016 to 2017, respectively. The ultra-deep layer reaches a median depth per epoch of 26.4, 26.3, 26.0, 25.6, and 24.6 mag in g, r, i, z, and y bands, respectively; the deep layer is ∼0.6 mag shallower. In total, 1824 supernova candidates were identified. Based on light-curve fitting and derived light-curve shape parameter, we classified 433 objects as Type Ia supernovae (SNe); among these candidates, 129 objects have spectroscopic or COSMOS2015 photometric redshifts and 58 objects are located at z > 1. Our unique data set doubles the number of Type Ia SNe at z > 1 and enables various time-domain analyses of Type II SNe, high-redshift superluminous SNe, variable stars, and active galactic nuclei.
KW - cosmology: observations
KW - supernovae: general
KW - surveys
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U2 - 10.1093/pasj/psz050
DO - 10.1093/pasj/psz050
M3 - Article
AN - SCOPUS:85070833053
SN - 0004-6264
VL - 71
JO - Publication of the Astronomical Society of Japan
JF - Publication of the Astronomical Society of Japan
IS - 4
M1 - 74
ER -