The atacama cosmology telescope: Summary of dr4 and dr5 data products and data access

Maya Mallaby-Kay, Zachary Atkins, Simone Aiola, Stefania Amodeo, Jason E. Austermann, James A. Beall, Daniel T. Becker, J. Richard Bond, Erminia Calabrese, Grace E. Chesmore, Steve K. Choi, Kevin T. Crowley, Omar Darwish, Edward V. Denison, Mark J. Devlin, Shannon M. Duff, Adriaan J. Duivenvoorden, Jo Dunkley, Simone Ferraro, Kyra FichmanPatricio A. Gallardo, Joseph E. Golec, Yilun Guan, Dongwon Han, Matthew Hasselfield, J. Colin Hill, Gene C. Hilton, Matt Hilton, Renée Hložek, Johannes Hubmayr, Kevin M. Huffenberger, John P. Hughes, Brian J. Koopman, Thibaut Louis, Amanda MacInnis, Mathew S. Madhavacheril, Jeff McMahon, Kavilan Moodley, Sigurd Naess, Toshiya Namikawa, Federico Nati, Laura B. Newburgh, John P. Nibarger, Michael D. Niemack, Lyman A. Page, Maria Salatino, Emmanuel Schaan, Alessandro Schillaci, Neelima Sehgal, Blake D. Sherwin, Cristóbal Sifón, Sara Simon, Suzanne T. Staggs, Emilie R. Storer, Joel N. Ullom, Alexander Van Engelen, Jeff Van Lanen, Leila R. Vale, Edward J. Wollack, Zhilei Xu

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9 Scopus citations


Two recent large data releases for the Atacama Cosmology Telescope (ACT), called DR4 and DR5, are available for public access. These data include temperature and polarization maps that cover nearly half the sky at arcminute resolution in three frequency bands; lensing maps and component-separated maps covering ~2100 deg2 of sky; derived power spectra and cosmological likelihoods; a catalog of over 4000 galaxy clusters; and supporting ancillary products including beam functions and masks. The data and products are described in a suite of ACT papers; here we provide a summary. In order to facilitate ease of access to these data, we present a set of Jupyter IPython notebooks developed to introduce users to DR4, DR5, and the tools needed to analyze these data. The data products (excluding simulations) and the set of notebooks are publicly available on the NASA Legacy Archive for Microwave Background Data Analysis; simulation products are available on the National Energy Research Scientific Computing Center.

Original languageEnglish (US)
Article numberA3
JournalAstrophysical Journal, Supplement Series
Issue number1
StatePublished - Jul 2021

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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