The Atacama Cosmology Telescope: arcminute-resolution maps of 18,000 square degrees of the microwave sky from ACT 2008-2018 data combined with Planck. (arXiv:2007.07290v1 [astro-ph.IM])

The Atacama Cosmology Telescope: arcminute-resolution maps of 18,000 square degrees of the microwave sky from ACT 2008-2018 data combined with Planck. (arXiv:2007.07290v1 [astro-ph.IM])
<a href="http://arxiv.org/find/astro-ph/1/au:+Naess_S/0/1/0/all/0/1">Sigurd Naess</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Aiola_S/0/1/0/all/0/1">Simone Aiola</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Austermann_J/0/1/0/all/0/1">Jason E. Austermann</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Battaglia_N/0/1/0/all/0/1">Nick Battaglia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beall_J/0/1/0/all/0/1">James A. Beall</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Becker_D/0/1/0/all/0/1">Daniel T. Becker</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bond_R/0/1/0/all/0/1">Richard J. Bond</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Calabrese_E/0/1/0/all/0/1">Erminia Calabrese</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Choi_S/0/1/0/all/0/1">Steve K. Choi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cothard_N/0/1/0/all/0/1">Nicholas F. Cothard</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Crowley_K/0/1/0/all/0/1">Kevin T. Crowley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Darwish_O/0/1/0/all/0/1">Omar Darwish</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Datta_R/0/1/0/all/0/1">Rahul Datta</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Denison_E/0/1/0/all/0/1">Edward V. Denison</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Devlin_M/0/1/0/all/0/1">Mark Devlin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duell_C/0/1/0/all/0/1">Cody J. Duell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duff_S/0/1/0/all/0/1">Shannon M. Duff</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duivenvoorden_A/0/1/0/all/0/1">Adriaan J. Duivenvoorden</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dunkley_J/0/1/0/all/0/1">Jo Dunkley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dunner_R/0/1/0/all/0/1">Rolando Dünner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fox_A/0/1/0/all/0/1">Anna E. Fox</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gallardo_P/0/1/0/all/0/1">Patricio A. Gallardo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Halpern_M/0/1/0/all/0/1">Mark Halpern</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Han_D/0/1/0/all/0/1">Dongwon Han</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hasselfield_M/0/1/0/all/0/1">Matthew Hasselfield</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hill_J/0/1/0/all/0/1">J. Colin Hill</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hilton_G/0/1/0/all/0/1">Gene C. Hilton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hilton_M/0/1/0/all/0/1">Matt Hilton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hincks_A/0/1/0/all/0/1">Adam D. Hincks</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hlozek_R/0/1/0/all/0/1">Renée Hložek</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ho_S/0/1/0/all/0/1">Shuay-Pwu Patty Ho</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hubmayr_J/0/1/0/all/0/1">Johannes Hubmayr</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Huffenberger_K/0/1/0/all/0/1">Kevin Huffenberger</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hughes_J/0/1/0/all/0/1">John P. Hughes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kosowsky_A/0/1/0/all/0/1">Arthur B. Kosowsky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Louis_T/0/1/0/all/0/1">Thibaut Louis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Madhavacheril_M/0/1/0/all/0/1">Mathew S. Madhavacheril</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+McMahon_J/0/1/0/all/0/1">Jeff McMahon</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Moodley_K/0/1/0/all/0/1">Kavilan Moodley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nati_F/0/1/0/all/0/1">Federico Nati</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nibarger_J/0/1/0/all/0/1">John P. Nibarger</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Niemack_M/0/1/0/all/0/1">Michael D. Niemack</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Page_L/0/1/0/all/0/1">Lyman Page</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Partridge_B/0/1/0/all/0/1">Bruce Partridge</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Salatino_M/0/1/0/all/0/1">Maria Salatino</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Schaan_E/0/1/0/all/0/1">Emmanuel Schaan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Schillaci_A/0/1/0/all/0/1">Alessandro Schillaci</a>, et al. (15 additional authors not shown)

This paper presents an algorithm for generating temperature and polarization
maps that have the best features of both Planck and ACT: Planck’s nearly white
noise on intermediate and large angular scales and ACT’s high-resolution and
sensitivity on small angular scales. We use this approach to combine data from
the 2008–2018 ACT observing seasons with the full Planck maps to generate
temperature and polarization maps that cover over 18,000 square degrees, nearly
half the full sky, at 100, 150 and 220 GHz. The maps reveal 4,000
optically-confirmed clusters through the Sunyaev Zel’dovich effect (SZ) and
18,500 point source candidates at $> 5sigma$, the largest single collection of
SZ clusters and millimeter wave sources to date. The multi-frequency maps
provide millimeter images of nearby galaxies and individual Milky Way nebulae,
and even clear detections of several nearby stars. Other anticipated uses of
these maps include, for example, thermal SZ and kinematic SZ cluster stacking,
CMB cluster lensing and galactic dust science. However, due to the preliminary
nature of some of the component data sets, we caution that these maps should
not be used for precision cosmological analysis. The maps will be made
available on LAMBDA no later than three months after the journal publication of
this article.

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