Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
复制标题
DOI：
10.1093/pasj/psab122
复制
发表时间：
2021-08
期刊：
影响因子：
--
通讯作者：
H. Aihara;Y. AlSayyad;M. Ando;R. Armstrong;J. Bosch;E. Egami;H. Furusawa;J. Furusawa;S. Harasawa;Y. Harikane;B. Hsieh;H. Ikeda;Kei Ito;I. Iwata;T. Kodama;Michitaro Koike;M. Kokubo;Y. Komiyama;Xiangchong Li;Yongming Liang;Yen-Ting Lin;R. Lupton;N. Lust;L. Macarthur;K. Mawatari;S. Mineo;H. Miyatake;S. Miyazaki;S. More;Takahiro Morishima;H. Murayama;K. Nakajima;F. Nakata;A. Nishizawa;M. Oguri;N. Okabe;Y. Okura;Y. Ono;K. Osato;M. Ouchi;Yen-Chen Pan;A. P. Malag'on;P. Price;S. Reed;E. Rykoff;T. Shibuya;M. Simunovic;M. Strauss;K. Sugimori;Y. Suto;N. Suzuki;M. Takada;Y. Takagi;T. Takata;S. Takita;Masayuki Tanaka;Shenli Tang;D. Taranu;T. Terai;Y. Toba;E. Turner;H. Uchiyama;Bovornpratch Vijarnwannaluk;Christopher Waters;Y. Yamada;Naoaki Yamamoto;T. Yamashita
中科院分区：
文献类型：
--
作者：
H. Aihara;Y. AlSayyad;M. Ando;R. Armstrong;J. Bosch;E. Egami;H. Furusawa;J. Furusawa;S. Harasawa;Y. Harikane;B. Hsieh;H. Ikeda;Kei Ito;I. Iwata;T. Kodama;Michitaro Koike;M. Kokubo;Y. Komiyama;Xiangchong Li;Yongming Liang;Yen-Ting Lin;R. Lupton;N. Lust;L. Macarthur;K. Mawatari;S. Mineo;H. Miyatake;S. Miyazaki;S. More;Takahiro Morishima;H. Murayama;K. Nakajima;F. Nakata;A. Nishizawa;M. Oguri;N. Okabe;Y. Okura;Y. Ono;K. Osato;M. Ouchi;Yen-Chen Pan;A. P. Malag'on;P. Price;S. Reed;E. Rykoff;T. Shibuya;M. Simunovic;M. Strauss;K. Sugimori;Y. Suto;N. Suzuki;M. Takada;Y. Takagi;T. Takata;S. Takita;Masayuki Tanaka;Shenli Tang;D. Taranu;T. Terai;Y. Toba;E. Turner;H. Uchiyama;Bovornpratch Vijarnwannaluk;Christopher Waters;Y. Yamada;Naoaki Yamamoto;T. Yamashita
该论文介绍了 Hyper Suprime-Cam Subaru 战略计划 (HSC-SSP) 的第三次数据发布，这是一项使用 Subaru 8.2m 望远镜进行的宽视场多波段成像调查。 HSC-SSP 具有三个勘测图层（宽、深和超深），具有不同的区域覆盖范围和深度，旨在解决各种天体物理问题。 HSC-SSP 的第三次发布包括 278 个夜晚观测时间的数据，并覆盖宽层中全深度（$\sim26$~mag at $5\sigma$）所有五个宽带滤波器中约 670 平方度的数据。如果我们包括部分观察到的区域，则释放范围为 1,470 平方度。 Deep 和 UltraDeep 层的积分时间为原计划的 $\sim80\%$，并且被认为已完成，因为我们稍微改变了观察策略以补偿各种时间损失。图像处理管道中有许多更新。特别重要的是天空减法算法的变化；我们在检测和测量阶段之前小规模地减去天空，这显着减少了错误检测。由于此更新和其他更新，处理数据的整体质量自上一版本以来得到了提高。然而，数据存在局限性（例如，管道未针对拥挤的领域进行优化），我们鼓励用户在利用数据之前检查质量保证图以及已知问题列表。数据发布网站为https://hsc-release.mtk.nao.ac.jp/。
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 has three survey layers (Wide, Deep, and UltraDeep) with different area coverages and depths, designed to address a wide array of astrophysical questions. This third release from HSC-SSP includes data from 278 nights of observing time and covers about 670 square degrees in all five broad-band filters at the full depth ($\sim26$~mag at $5\sigma$) in the Wide layer. If we include partially observed area, the release covers 1,470 square degrees. The Deep and UltraDeep layers have $\sim80\%$ of the originally planned integration times, and are considered done, as we have slightly changed the observing strategy in order to compensate for various time losses. There are a number of updates in the image processing pipeline. Of particular importance is the change in the sky subtraction algorithm; we subtract the sky on small scales before the detection and measurement stages, which has significantly reduced false detections. Thanks to this and other updates, the overall quality of the processed data has improved since the previous release. However, there are limitations in the data (for example, the pipeline is not optimized for crowded fields), and we encourage the user to check the quality assurance plots as well as a list of known issues before exploiting the data. The data release website is https://hsc-release.mtk.nao.ac.jp/.