The Atacama Cosmology Telescope: arcminute-resolution maps of 18 000 square degrees of the microwave sky from ACT 2008-2018 data combined with Planck

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dc.contributor.authorNaess, Sigurd
dc.contributor.authorAiola, Simone
dc.contributor.authorAustermann, Jason E.
dc.contributor.authorBattaglia, Nick
dc.contributor.authorBeall, James A.
dc.contributor.authorBecker, Daniel T.
dc.contributor.authorBond, Richard J.
dc.contributor.authorCalabrese, Erminia
dc.contributor.authorChoi, Steve K.
dc.contributor.authorCothard, Nicholas F.
dc.contributor.authorCrowley, Kevin T.
dc.contributor.authorDarwish, Omar
dc.contributor.authorDatta, Rahul
dc.contributor.authorDenison, Edward, V
dc.contributor.authorDevlin, Mark
dc.contributor.authorDuell, Cody J.
dc.contributor.authorDuff, Shannon M.
dc.contributor.authorDuivenvoorden, Adriaan J.
dc.contributor.authorDunkley, Jo
dc.contributor.authorDuenner, Rolando
dc.contributor.authorFox, Anna E.
dc.contributor.authorGallardo, Patricio A.
dc.contributor.authorHalpern, Mark
dc.contributor.authorHan, Dongwon
dc.contributor.authorHasselfield, Matthew
dc.contributor.authorHill, J. Colin
dc.contributor.authorHilton, Gene C.
dc.contributor.authorHilton, Matt
dc.contributor.authorHincks, Adam D.
dc.contributor.authorHlozek, Renee
dc.contributor.authorHo, Shuay-Pwu Patty
dc.contributor.authorHubmayr, Johannes
dc.contributor.authorHuffenberger, Kevin
dc.contributor.authorHughes, John P.
dc.contributor.authorKosowsky, Arthur B.
dc.contributor.authorLouis, Thibaut
dc.contributor.authorMadhavacheril, Mathew S.
dc.contributor.authorMcMahon, Jeff
dc.contributor.authorMoodley, Kavilan
dc.contributor.authorNati, Federico
dc.contributor.authorNibarger, John P.
dc.contributor.authorNiemack, Michael D.
dc.contributor.authorPage, Lyman
dc.contributor.authorPartridge, Bruce
dc.contributor.authorSalatino, Maria
dc.contributor.authorSchaan, Emmanuel
dc.contributor.authorSchillaci, Alessandro
dc.contributor.authorSchmitt, Benjamin
dc.contributor.authorSherwin, Blake D.
dc.contributor.authorSehgal, Neelima
dc.contributor.authorSifon, Cristobal
dc.contributor.authorSpergel, David
dc.contributor.authorStaggs, Suzanne
dc.contributor.authorStevens, Jason
dc.contributor.authorStorer, Emilie
dc.contributor.authorUllom, Joel N.
dc.contributor.authorVale, Leila R.
dc.contributor.authorVan Engelen, Alexander
dc.contributor.authorVan Lanen, Jeff
dc.contributor.authorVavagiakis, Eve M.
dc.contributor.authorWollack, Edward J.
dc.contributor.authorXu, Zhilei
dc.date.accessioned2025-01-23T19:46:09Z
dc.date.available2025-01-23T19:46:09Z
dc.date.issued2020
dc.description.abstractThis paper presents a maximum-likelihood algorithm for combining sky maps with disparate sky coverage, angular resolution and spatially varying anisotropic noise into a single map of the sky. We use this to merge hundreds of individual maps covering the 2008-2018 ACT observing seasons, resulting in by far the deepest ACT maps released so far. We also combine the maps with the full Planck maps, resulting in 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. The maps cover over 18 000 square degrees, nearly half the full sky, at 100, 150 and 220 GHz. They reveal 4 000 optically-confirmed clusters through the Sunyaev Zel'dovich effect (SZ) and 18 500 point source candidates at > 5 sigma, 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. The method itself has negligible bias. 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 are part of ACT DR5, and will be made available on LAMBDA no later than three months after the journal publication of this article, along with an interactive sky atlas.
dc.fuente.origenWOS
dc.identifier.doi10.1088/1475-7516/2020/12/046
dc.identifier.issn1475-7516
dc.identifier.urihttps://doi.org/10.1088/1475-7516/2020/12/046
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100269
dc.identifier.wosidWOS:000609105900032
dc.issue.numero12
dc.language.isoen
dc.revistaJournal of cosmology and astroparticle physics
dc.rightsacceso restringido
dc.subjectCMBR experiments
dc.subjectCMBR polarisation
dc.titleThe Atacama Cosmology Telescope: arcminute-resolution maps of 18 000 square degrees of the microwave sky from ACT 2008-2018 data combined with Planck
dc.typeartículo
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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