Abstract
Abstract 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.
Highlights
The Atacama Cosmology Telescope (ACT) is a 6 m telescope in the Atacama Desert in northern Chile with arcminute resolution (Fowler et al 2007; Thornton et al 2016)
All of the elements of the data releases are described in individual papers as outlined below; this paper gives a summary of the contents of the two data releases and describes a suite of Jupyter IPython notebooks that accompany the data products to facilitate their use
We provide a set of Jupyter IPython notebooks to facilitate use of the DR4 and DR5 data products
Summary
The Atacama Cosmology Telescope (ACT) is a 6 m telescope in the Atacama Desert in northern Chile with arcminute resolution (Fowler et al 2007; Thornton et al 2016). DR5 adds ACT data acquired in 2017–2018 (s17–s18) in frequency bands centered at 98, 150, and 220 GHz. The DR5 data products released so far consist of the co-added s08–s18 maps described in N20, and the derived galaxy cluster catalog presented in Hilton et al (2021). While this paper provides a summary, any work using these data products or notebooks should reference the appropriate science publication (s) (Madhavacheril et al 2020a; Aiola et al 2020; Choi et al 2020; Darwish et al 2020; Naess et al 2020; Namikawa et al 2020; Han et al 2021; Hilton et al 2021)
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