ACT

ACT Data Products at LAMBDA

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Data Release Products for the 2008-2010 Season at 148 GHz and 218 GHz
Data Release Products for the 2008-2010 Season at 148 GHz and 218 GHz
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Files/Size
Masks The point source mask is a map, in FITS format, with the same footprint and World Coordinate System as the associated 148 GHz data. More... 3 files, < 187.1 MB
Weights AR1, AR2 These files contain combined hit-count maps for each pixel of Atacama Cosmology Telescope (ACT) maps of the southern and equatorial fields, observed during the 2008-2010 seasons, in the 148 GHz and 217 GHz bands, and produced for the ACT data release in February 2014. More... 50 files < 187.1 MB
Spectra The ACT temperature power spectra are combined to estimated the CMB bandpowers, marginalized over foregrounds and SZ. Spectra are given for each region (ACT-E and ACT-S). The coadded spectra are also given. More... 36 files < 926 Bytes
Beams These files represent the beam transforms and radial profiles of the ACT beam, appropriate for use with the ACT 148 GHz and 220 GHz maps of 2008-2010 data. More... 18 files < 1.3 MB
Maps AR1, AR2 These files contain the Atacama Cosmology Telescope (ACT) temperature maps of the southern and equatorial fields, observed during the 2008-2010 seasons, in the 148 GHz and 217 GHz bands, and produced for the ACT data release in February 2014. More... 100 files < 187.1 MB

Derived CMB Products from full 3-year data
Derived CMB Products from full 3-year data
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Lensing Likelihood A single tarball is supplied, containing the lensing likelihood and data for ACT. It is a simple chisq routine that takes in a theoretical deflection spectrum, and compares it to the ACT data file in the /data directory. More... 1 file, 107 KB
Multi-Frequency Likelihood Oct-2013 Updated likelihood v2 released with updated ACT beams, and includes an improved binning of the spectra. As reported in the ACT papers, the effect on cosmological parameters is small, less than 0.1 sigma for the majority, up to a maximum of 0.2 sigma. This version also includes the newer Story et al 2012 SPT data at large scales as the default, instead of the Keisler et al 2012 SPT data. More... 1 file, 76.9 MB
CMB Likelihood Oct-2013 Updated likelihood v2p2 released with updated ACT beams, including the improved binning of the spectra used in v2p1. As reported in the ACT papers, the effect of this change on cosmological parameters is small, at the 0.1 sigma level. More... 1 file, 5.4 MB
Total Spectra The ACT temperature power spectra are computed at 148 GHz and 218 GHz. Three spectra are given for each region (ACT-E and ACT-S), for 148x148, 148x218, and 218x218. The coadded spectra are also given. More... 9 files, <= 705 bytes each
CMB Spectra The ACT temperature power spectra are combined to estimated the CMB bandpowers, marginalized over foregrounds and SZ. Spectra are given for each region (ACT-E and ACT-S). More... 2 files, < 3 KB each

Data Release Products for South 2008 Data at 148 GHz
Data Release Products for South 2008 Data at 148 GHz
Product
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Description No. Of
Files/Size
Temperature Maps These files contain the Atacama Cosmology Telescope (ACT) temperature maps of the southern stripe field, observed during the 2008 season, in the 148 GHz band, and produced for the first ACT data release in March 2012. More... 10 files, 176.9 MB each
Hit-Count Maps These files contain combined hit-count maps for each pixel of Atacama Cosmology Telescope (ACT) maps of the southern stripe field, observed during the 2008 season, in the 148 GHz band, and produced for the first ACT data release in March 2012. More... 5 files, 176.9 MB each
Beam Functions These two files represent the radial beam profile and the Fourier space window function of the ACT beam, appropriate for use with the ACT 148 GHz maps of 2008 data released with Dunner et al. More... 2 files, <= 762 KB each
Masks The point source mask is a map, in FITS format, with the same footprint and World Coordinate System as the associated 148 GHz data. More... 1 file, 176.9 MB

Derived CMB Products from 2008 Data
Derived CMB Products from 2008 Data
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Description No. Of
Files/Size
Likelihood Software This is the software used by the ACT collaboration to compute the likelihood of cosmological models, using the small-scale microwave power spectrum measured by ACT from the 2008 Southern sky survey. It is based on the WMAP likelihood software. More... 1 file, 4.6 MB
Chains These are MCMC chains run using the ACT likelihood software based on the small-scale microwave power spectrum measured from the 2008 Southern sky survey. More... 10 files, < 4.5 MB
Primordial Spectrum This is the software and chains used by the ACT collaboration in Hlozek et al 2011 [1105.4887]. It includes the modification to CAMB required to use a binned primordial power spectrum instead of a power law, and modifications to CosmoMC to sample these additional parameters. More... 2 files, < 336 KB
Beams The beam window functions for the ACT temperature power spectra are computed at 148 GHz and 218 GHz. They are obtained by transforming the beam profiles obtained from Saturn observations. More... 2 files, 451 kB each
Spectra The ACT temperature power spectra are computed at 148 GHz and 218 GHz. Three spectra are given, for 148x148, 148x218, and 218x218. More... 3 files, 4 kB each
Source Templates The angular power spectra shape due to clustered IR point sources as predicted by two different models (named Src-1, Src-2) are supplied for the 148 GHZ ACT frequency. More... 2 files, 221 kB each
SZ Templates The angular power spectra due to the Sunyaev-Zeldovich effect as predicted by four different models (named TBO-1, TBO-2, Battaglia, Shaw) are supplied for the 148 GHZ ACT frequency. More... 6 files, < 557 kB each

Derived Lensing Products
Derived Lensing Products
Product
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Description No. Of
Files/Size
Likelihood Software This is the ACT lensing likelihood routine from Das et al 2011 (astro-ph/1103.2124), written in Fortran 90. More... 1 file, 111 KB
Chains This tarball includes 6 chains run for the lcdm+curvature model, with results reported in Sherwin et al 2011 (astro-ph/1103.0419), using WM AP 7-year data plus ACT lensing likelihood described in Das et al 2011 (astro-ph/1103.2124). More... 1 file, 3.3 MB

Foreground Data
Foreground Data
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2008 SZ Clusters Catalog of 23 galaxy clusters detected by the Sunyaev-Zeldovich (SZ) effect in 455 square degrees of sky surveyed by ACT during 2008 at 148 GHz. The catalog gives the cluster names, positions, redshifts, signal-to-noise, and measured SZ signal. SZ and optical images of each cluster are also included. N/A
Point Source Catalog This is a catalog of point sources detected in a 148 GHz data collected by ACT . More... 1 files, 20 kB

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A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. David T. Chuss
NASA Official: Dr. David T. Chuss
Web Curator: Mr. Michael R. Greason