The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies,Monthly Notices of the Royal Astronomical Society

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The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies
Monthly Notices of the Royal Astronomical Society ( IF 4.7 ) Pub Date : 2020-11-10 , DOI: 10.1093/mnras/staa3438
Omar Darwish ₁ , Mathew S Madhavacheril _{2,

3} , Blake D Sherwin _{1,

4} , Simone Aiola ₅ , Nicholas Battaglia ₆ , James A Beall ₇ , Daniel T Becker ₇ , J Richard Bond ₈ , Erminia Calabrese ₉ , Steve K Choi ₆ , Mark J Devlin ₁₀ , Jo Dunkley _{3,

11} , Rolando Dünner ₁₂ , Simone Ferraro ₁₃ , Anna E Fox ₇ , Patricio A Gallardo ₁₄ , Yilun Guan ₁₅ , Mark Halpern ₁₆ , Dongwon Han ₁₇ , Matthew Hasselfield ₅ , J Colin Hill _{5,

18,

19} , Gene C Hilton ₇ , Matt Hilton ₂₀ , Adam D Hincks ₈ , Shuay-Pwu Patty Ho ₁₁ , J Hubmayr ₇ , John P Hughes ₂₁ , Brian J Koopman ₂₂ , Arthur Kosowsky ₁₅ , J Van Lanen ₇ , Thibaut Louis ₂₃ , Marius Lungu ₁₁ , Amanda MacInnis ₁₇ , Loïc Maurin ₂₄ , Jeffrey McMahon _{25,

26,

27,

28} , Kavilan Moodley ₂₀ , Sigurd Naess ₅ , Toshiya Namikawa ₁ , Federico Nati ₂₉ , Laura Newburgh ₂₂ , John P Nibarger ₇ , Michael D Niemack _{6,

14} , Lyman A Page ₁₁ , Bruce Partridge ₃₀ , Frank J Qu ₁ , Naomi Robertson _{4,

31} , Alessandro Schillaci ₃₂ , Benjamin Schmitt ₃₃ , Neelima Sehgal ₁₇ , Cristóbal Sifón ₃₄ , David N Spergel _{3,

5} , Suzanne Staggs ₁₁ , Emilie Storer ₁₁ , Alexander van Engelen ₃₅ , Edward J Wollack ₃₆

Affiliation

Center for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA, UK
Perimeter Institute, Centre for the Universe, Waterloo, ON N2L 2Y5, Canada
Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA
Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 OHA, UK
Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY 10010, USA
Department of Astronomy, Cornell University, Ithaca, NY 14853 USA
NIST Quantum Devices Group, 325 Broadway Mailcode 817.03, Boulder, CO 80305, USA
Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St George Street, Toronto, ON M5S 3H8, Canada
School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, UK
Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA
Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA
Instituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Chile
Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Department of Physics, Cornell University, Ithaca, NY 14853 USA
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA
Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
Physics and Astronomy Department, Stony Brook University, Stony Brook, NY 11794, USA
Department of Physics, Columbia University, 550 West 120th Street, New York, NY 10027, USA
School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, USA
Astrophysics & Cosmology Research Unit, School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Durban 4041, South Africa
Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019 USA
Department of Physics, Yale University, New Haven, CT 06520, USA
CNRS/IN2P3, IJCLab, Université Paris-Saclay, F-91405 Orsay, France
CNRS, Institut d’astrophysique spatiale, Université Paris-Saclay, F-91405 Orsay, France
Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA
Department of Physics, University of Chicago, Chicago, IL 60637, USA
Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
Department of Physics, University of Milano-Bicocca Piazza della Scienza 3, I-20126 Milano, Italy
Department of Physics and Astronomy, Haverford College, Haverford, PA 19041, USA
Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, UK
Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
Harvard-Smithsonian Center for Astrophysics, Harvard University, 60 Garden St, Cambridge, MA 02138, USA
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla 4059, Valparaíso, Chile
School of Earth and Space Exploration and Department of Physics, Arizona State University, Tempe, AZ 85287, USA
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA

We construct cosmic microwave background lensing mass maps using data from the 2014 and 2015 seasons of observations with the Atacama Cosmology Telescope (ACT). These maps cover 2100 square degrees of sky and overlap with a wide variety of optical surveys. The maps are signal dominated on large scales and have fidelity such that their correlation with the cosmic infrared background is clearly visible by eye. We also create lensing maps with thermal Sunyaev-Zel'dovich contamination removed using a novel cleaning procedure that only slightly degrades the lensing signal-to-noise ratio. The cross-spectrum between the cleaned lensing map and the BOSS CMASS galaxy sample is detected at $10$-$\sigma$ significance, with an amplitude of $A=1.02 \pm 0.10$ relative to the Planck best-fit LCDM cosmological model with fiducial linear galaxy bias. Our measurement lays the foundation for lensing cross-correlation science with current ACT data and beyond.

中文翻译：

阿塔卡马宇宙学望远镜：超过 2100 平方度天空的 CMB 透镜质量图及其与 BOSS-CMASS 星系的互相关

我们使用阿塔卡马宇宙望远镜 (ACT) 的 2014 年和 2015 年观测数据构建了宇宙微波背景透镜质量图。这些地图覆盖了 2100 平方度的天空，并与各种光学测量重叠。这些地图在大尺度上以信号为主，并且具有保真度，因此肉眼可以清楚地看到它们与宇宙红外背景的相关性。我们还创建了透镜图，其中使用一种新颖的清洁程序去除了热 Sunyaev-Zel'dovich 污染，这种清洁程序只会略微降低透镜信噪比。清洁后的透镜图和 BOSS CMASS 星系样本之间的交叉光谱检测到 $10$-$\sigma$ 显着性，相对于 Planck 最佳拟合 LCDM 宇宙学模型的振幅为 $A=1.02 \pm 0.10$基准线性星系偏差。

更新日期：2020-11-10

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