阿塔卡马宇宙学望远镜：覆盖三分之一天空的高分辨率分量分离地图
摘要：毫米波天空观测包含有关多种信号的宝贵信息，包括黑体宇宙微波背景（CMB）、银河发射和由热太阳耀斑-泽尔多维奇（tSZ）效应引起的康普顿-$y$畸变。提取关于宇宙学和天体物理学问题的新见解通常需要将多波段观测数据进行组合，以便光谱地分离出一个组分。在本文中，我们提供了一张新的角分钟分辨率的康普顿-$y$图，它描绘了沿视线积分的电子压强，以及CMB的强度和E模极化的图像，跨越了1/3的天空面积（约13,000平方度）。我们通过联合分析来自Atacama宇宙学望远镜（ACT）数据发布4和6的数据，频率大约在93、148和225 GHz之间，以及来自Planck卫星30 GHz到545 GHz之间频率的数据。我们详细验证了在Needlet框架中实现的内部线性组合流程，该流程使我们能够有效地抑制银河污染并考虑ACT仪器噪声的空间变化。这些图像在噪声水平和分辨率上相对于现有的Planck组分分离图像取得了重大进展，并将实现一系列科学目标，包括集团和星系天体物理学研究、宇宙速度场推断、原初非高斯性搜索和CMB的引力透镜重建。
作者：William R. Coulton, Mathew S. Madhavacheril, Adriaan J. Duivenvoorden, J. Colin Hill, Irene Abril-Cabezas, Peter A. R. Ade, Simone Aiola, Tommy Alford, Mandana Amiri, Stefania Amodeo, Rui An, Zachary Atkins, Jason E. Austermann, Nicholas Battaglia, Elia Stefano Battistelli, James A. Beall, Rachel Bean, Benjamin Beringue, Tanay Bhandarkar, Emily Biermann, Boris Bolliet, J Richard Bond, Hongbo Cai, Erminia Calabrese, Victoria Calafut, Valentina Capalbo, Felipe Carrero, Grace E. Chesmore, Hsiao-mei Cho, Steve K. Choi, Susan E. Clark, Rodrigo C''ordova Rosado, Nicholas F. Cothard, Kevin Coughlin, Kevin T. Crowley, Mark J. Devlin, Simon Dicker, Peter Doze, Cody J. Duell, Shannon M. Duff, Jo Dunkley, Rolando D"unner, Valentina Fanfani, Max Fankhanel, Gerrit Farren, Simone Ferraro, Rodrigo Freundt, Brittany Fuzia, Patricio A. Gallardo, Xavier Garrido, Jahmour Givans, Vera Gluscevic, Joseph E. Golec, Yilun Guan, Mark Halpern, Dongwon Han, Matthew Hasselfield, Erin Healy, Shawn Henderson, Brandon Hensley, Carlos Herv''ias-Caimapo, Gene C. Hilton, Matt Hilton, Adam D. Hincks, Ren''ee Hlov{z}ek, Shuay-Pwu Patty Ho, Zachary B. Huber, Johannes Hubmayr, Kevin M. Huffenberger, John P. Hughes, Kent Irwin, Giovanni Isopi, Hidde T. Jense, Ben Keller, Joshua Kim, Kenda Knowles, Brian J. Koopman, Arthur Kosowsky, Darby Kramer, Aleksandra Kusiak, Adrien La Posta, Victoria Lakey, Eunseong Lee, Zack Li, Yaqiong Li, Michele Limon, Martine Lokken, Thibaut Louis, Marius Lungu, Niall MacCrann, Amanda MacInnis, Diego Maldonado, Felipe Maldonado, Maya Mallaby-Kay, Gabriela A. Marques, Joshiwa van Marrewijk, Fiona McCarthy, Jeff McMahon, Yogesh Mehta, Felipe Menanteau, Kavilan Moodley, Thomas W. Morris, Tony Mroczkowski, Sigurd Naess, Toshiya Namikawa, Federico Nati, Laura Newburgh, Andrina Nicola, Michael D. Niemack, Michael R. Nolta, John Orlowski-Scherer, Lyman A. Page, Shivam Pandey, Bruce Partridge, Heather Prince, Roberto Puddu, Frank J. Qu, Federico Radiconi, Naomi Robertson, Felipe Rojas, Tai Sakuma, Maria Salatino, Emmanuel Schaan, Benjamin L. Schmitt, Neelima Sehgal, Shabbir Shaikh, Blake D. Sherwin, Carlos Sierra, Jon Sievers, Crist''obal Sif''on, Sara Simon, Rita Sonka, David N. Spergel, Suzanne T. Staggs, Emilie Storer, Eric R. Switzer, Niklas Tampier, Robert Thornton, Hy Trac, Jesse Treu, Carole Tucker, Joel Ullom, Leila R. Vale, Alexander Van Engelen, Jeff Van Lanen, Cristian Vargas, Eve M. Vavagiakis, Kasey Wagoner, Yuhan Wang, Lukas Wenzl, Edward J. Wollack, Zhilei Xu, Fernando Zago, Kaiwen Zheng
论文ID：2307.01258
分类：Cosmology and Nongalactic Astrophysics
分类简称：astro-ph.CO
提交时间：2023-07-06