DES Collaboration, T. M. C. Abbott, M. Adamow, M. Aguena, S. Allam, A. Amon, J. Annis, S. Avila, D. Bacon, M. Banerji, K. Bechtol, M. R. Becker, G. M. Bernstein… 展开作者
DES Collaboration, T. M. C. Abbott, M. Adamow, M. Aguena, S. Allam, A. Amon, J. Annis, S. Avila, D. Bacon, M. Banerji, K. Bechtol, M. R. Becker, G. M. Bernstein, E. Bertin, S. Bhargava, S. L. Bridle, D. Brooks, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, R. Cawthon, C. Chang, A. Choi, C. Conselice, M. Costanzi, M. Crocce, L. N. da Costa, T. M. Davis, J. De Vicente, J. DeRose, S. Desai, H. T. Diehl, J. P. Dietrich, A. Drlica-Wagner, K. Eckert, J. Elvin-Poole, S. Everett, A. E. Evrard, I. Ferrero, A. Ferté, B. Flaugher, P. Fosalba, D. Friedel, J. Frieman, J. García-Bellido, L. Gelman, D. W. Gerdes, T. Giannantonio, M. Gill, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, W. G. Hartley, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. Huterer, D. J. James, T. Jeltema, M. D. Johnson, S. Kent, R. Kron, K. Kuehn, N. Kuropatkin, O. Lahav, T. S. Li, C. Lidman, H. Lin, N. MacCrann, M. A. G. Maia, T. Manning, M. March, J. L. Marshall, P. Martini, P. Melchior, F. Menanteau, R. Miquel, R. Morgan, J. Myles, E. Neilsen, R. L. C. Ogando, A. Palmese, F. Paz-Chinchón, D. Petravick, A. Pieres, A. A. Plazas, C. Pond, M. Rodriguez-Monroy, A. K. Romer, A. Roodman, E. S. Rykoff, M. Sako, E. Sanchez, B. Santiago, S. Serrano, I. Sevilla-Noarbe, J. Allyn. Smith, M. Smith, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, C. To, P. E. Tremblay, M. A. Troxel, D. L. Tucker, D. J Turner, T. N. Varga, A. R. Walker, R. H. Wechsler, J. Weller, W. Wester, R. D. Wilkinson, B. Yanny, Y. Zhang, R. Nikutta, M. Fitzpatrick, A. Jacques, A. Scott, K. Olsen, L. Huang, D. Herrera, S. Juneau, D. Nidever, B. A. Weaver, C. Adean, V. Correia, M. de Freitas, F. N. Freitas, C. Singulani, G. Vila-Verde
我们目前的暗能量调查，DES DR 2，基于光学/近红外成像的暗能量相机安装在4米布兰科望远镜在塞罗托洛洛美洲天文台在智利的基础上的第二次公开数据发布。DES DR 2由减少的单历元和coadded图像组成，来源于coadded图像的源目录，以及从6年DES科学操作中组装的相关数据产品。该版本包括DES广域调查的数据，覆盖了银河系南部帽盖约5000 deg 2的五个广泛的光度带，grizY。DES DR 2的中值传递点扩散函数半峰全宽为g= 1.11，r= 0.95，i= 0.88，z= 0.83，Y= 0.90 arcsec，相对于Gaia DR 2 G波段，光度测量精度约为10 mmag，中值内部天体测量精度约为27 mas。在信噪比为10的情况下，1.95弧秒直径孔径的共同添加星表深度中值为g= 24.7，r= 24.4，i= 23.8，z= 23.1和Y= 21.7 mag. DES DR 2包括约6.91亿个不同的天体，这些天体在从76，217张单历元图像产生的10，169张大小为0.534 deg 2的共同添加图像中被检测到。经过基本的质量选择，基准星系和恒星样本分别包含5.43亿和1.45亿个物体。这些数据可以通过几个界面访问，包括交互式图像可视化工具，基于Web的查询客户端，图像剪切服务器和Quixyter笔记本电脑。DES DR 2构成了迄今为止最大的光度数据集，达到了深度和光度精度。
英文摘要：
We present the second public data release of the Dark Energy Survey, DES DR2, based on optical/near-infrared imaging by the Dark Energy Camera mounted on the 4-m Blanco telescope at Cerro Tololo Inter-American Observatory in Chile. DES DR2 consists of reduced single-epoch and coadded images, a source catalog derived from coadded images, and associated data products assembled from 6 years of DES science operations. This release includes data from the DES wide-area survey covering ~5000 deg2 of the southern Galactic cap in five broad photometric bands, grizY. DES DR2 has a median delivered point-spread function full-width at half maximum of g= 1.11, r= 0.95, i= 0.88, z= 0.83, and Y= 0.90 arcsec photometric uniformity with a standard deviation of < 3 mmag with respect to Gaia DR2 G-band, a photometric accuracy of ~10 mmag, and a median internal astrometric precision of ~27 mas. The median coadded catalog depth for a 1.95 arcsec diameter aperture at S/N= 10 is g= 24.7, r= 24.4, i= 23.8, z= 23.1 and Y= 21.7 mag. DES DR2 includes ~691 million distinct astronomical objects detected in 10,169 coadded image tiles of size 0.534 deg2 produced from 76,217 single-epoch images. After a basic quality selection, benchmark galaxy and stellar samples contain 543 million and 145 million objects, respectively. These data are accessible through several interfaces, including interactive image visualization tools, web-based query clients, image cutout servers and Jupyter notebooks. DES DR2 constitutes the largest photometric data set to date at the achieved depth and photometric precision.
The MeerKLASS UHF On-the-Fly Continuum Survey -- Data Release I
The University of Manchester（曼彻斯特大学）；University of the Western Cape（西开普大学）；South African Radio Astronomy Observatory (SARAO)（南非射电天文台）；Rhodes University（罗德斯大学）；Institute for Radioastronomy, National Institute of Astrophysics (INAF IRA)（国家天体物理研究所射电天文研究所）；Observatoire de Paris, Université PSL, CNRS（巴黎天文台，巴黎文理研究大学，法国国家科学研究中心）；Thüringer Landessternwarte（图林根州立天文台）；Victoria University of Wellington（惠灵顿维多利亚大学）
Columbia University（哥伦比亚大学）；David Mittelman Observatory（大卫·米特尔曼天文台）；Barnard College, Columbia University（巴纳德学院，哥伦比亚大学）；Stanford University（斯坦福大学）；Princeton University（普林斯顿大学）
The MeerKLASS L-band On-the-Fly Continuum Survey: Data Release 1
Ludwig-Maximilians-Universität（路德维希-马克西米利安大学）；University of the Western Cape（西开普大学）；The University of Manchester（曼彻斯特大学）；South African Radio Astronomy Observatory (SARAO)（南非射电天文台）；Victoria University of Wellington（惠灵顿维多利亚大学）；Rhodes University（罗德岛大学）；National Institute of Astrophysics (INAF IRA)（国家天体物理研究所）；Observatoire de Paris, Université PSL, CNRS（巴黎天文台，巴黎文理研究大学，法国国家科学研究中心）
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Wisp Subtraction with the Non-negative Matrix Factorization Algorithm
Steward Observatory, University of Arizona（亚利桑那大学斯图尔德天文台）；Department of Physics and Astronomy, The Johns Hopkins University（约翰斯·霍普金斯大学物理与天文系）；Space Telescope Science Institute（太空望远镜科学研究所）；Department of Astronomy and Astrophysics, University of California, Santa Cruz（加州大学圣克鲁兹分校天文与天体物理系）；Kavli Institute for Cosmology, University of Cambridge（剑桥大学卡弗里宇宙学研究所）；Cavendish Laboratory, University of Cambridge（剑桥大学卡文迪许实验室）
The LOFAR Decametre Sky Survey (LoDeSS) I. Survey description and first data release
ASTRON, Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）；Kapteyn Astronomical Institute, University of Groningen（格罗宁根大学卡普坦天文研究所）；INAF – Istituto di Radioastronomia（意大利国家天体物理研究所射电天文研究所）；Hamburger Sternwarte, Universität Hamburg（汉堡大学汉堡天文台）；Leiden Observatory, Leiden University（莱顿大学莱顿天文台）；Anton Pannekoek Institute for Astronomy, University of Amsterdam（阿姆斯特丹大学安东·范·帕内库克天文研究所）
