DOE OSTI · 3019833
SPT-3G D1: Compton-$y$ maps using data from the SPT-3G and Planck surveys
Abstract
We present thermal Sunyaev-Zel'dovich (tSZ) Compton-$y$ parameter maps constructed from two years (2019-2020) of observations with the South Pole Telescope (SPT) third-generation camera, SPT-3G, combined with data from the Planck satellite. Using a linear combination (LC) pipeline, we obtain a suite of reconstructions that explore different trade-offs between statistical sensitivity and suppression of astrophysical contaminants, including minimum-variance, CMB-deprojected, and CIB-deprojected $y$-maps. We validate these maps through different statistical techniques such as auto- and cross-power spectra with large-scale structure tracers as well as stacking on cluster locations. These tests are used to understand the balance between noise and astrophysical foreground residuals (such as the CIB) in combination with the recovery of the tSZ signal for different maps. For example, results from stacking at the location of clusters confirm the robustness of the recovered tSZ signal over the $\sim 1500\: {\rm deg}^2$ SPT-3G survey field used in this analysis. The high-resolution and low-noise maps produced here provide an important cosmological tool for future studies, including measurements of the Compton-$y$ map power spectrum, cross-correlations with other tracers of the large-scale structure, detailed modeling of cluster pressure profiles, and study of the thermodynamic state of the baryons in the Universe.
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Maniyar, A. S. [Harvard-Smithsonian Ctr. Astrophys.; KIPAC, Menlo Park; Stanford U., HEPL; Stanford U.; SLAC] (ORCID:0000000246179320), Bianchini, F. [Harvard-Smithsonian Ctr. Astrophys.; KIPAC, Menlo Park; Stanford U., HEPL; Stanford U.; SLAC] (ORCID:0000000348473483), Wu, W. L.K. [Harvard-Smithsonian Ctr. Astrophys.; Caltech; KIPAC, Menlo Park; Stanford U., HEPL; SLAC] (ORCID:0000000154116920), Raghunathan, S. [Harvard-Smithsonian Ctr. Astrophys.; UC, Davis; Illinois U., Urbana (main)] (ORCID:000000031405378X), Anderson, A. J. [Harvard-Smithsonian Ctr. Astrophys.; Fermilab; Chicago U., KICP; Chicago U., Astron. Astrophys. Ctr.] (ORCID:0000000244354623), Ansarinejad, B. [Harvard-Smithsonian Ctr. Astrophys.; Melbourne U.], Archipley, M. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP] (ORCID:0000000205179842), Balkenhol, L. [Harvard-Smithsonian Ctr. Astrophys.; Paris, Inst. Astrophys.] (ORCID:0000000168991873), Barron, D. R. [Harvard-Smithsonian Ctr. Astrophys.; New Mexico U.] (ORCID:0000000216235651), Barry, P. S. [Harvard-Smithsonian Ctr. Astrophys.; Cardiff U.] (ORCID:0000000191039354), Benabed, K. [Harvard-Smithsonian Ctr. Astrophys.; Paris, Inst. Astrophys.], Bender, A. N. [Harvard-Smithsonian Ctr. Astrophys.; Argonne (main); Chicago U., KICP; Chicago U., Astron. Astrophys. Ctr.] (ORCID:0000000158680748), Benson, B. A. [Harvard-Smithsonian Ctr. Astrophys.; Fermilab; Chicago U., KICP; Chicago U., Astron. Astrophys. Ctr.] (ORCID:0000000251086823), Bleem, L. E. [Harvard-Smithsonian Ctr. Astrophys.; Argonne (main); Chicago U., KICP; Chicago U., Astron. Astrophys. Ctr.] (ORCID:0000000176655079), Bocquet, S. [Harvard-Smithsonian Ctr. Astrophys.; LMU Munich (main)] (ORCID:000000024900805X), Bouchet, F. R. [Harvard-Smithsonian Ctr. Astrophys.; Paris, Inst. Astrophys.] (ORCID:0000000280512924), Bryant, L. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., EFI], Camphuis, E. [Harvard-Smithsonian Ctr. 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Astrophys.; Argonne (main); Northwestern U.] (ORCID:0000000342452315), Guidi, F. [Harvard-Smithsonian Ctr. Astrophys.; Paris, Inst. Astrophys.] (ORCID:0000000175933962), Guns, S. [Harvard-Smithsonian Ctr. Astrophys.; UC, Berkeley], Halverson, N. W. [Harvard-Smithsonian Ctr. Astrophys.; Colorado U.], Hivon, E. [Harvard-Smithsonian Ctr. Astrophys.; Paris, Inst. Astrophys.] (ORCID:0000000318802733), Ho, A. Y.Q. [Harvard-Smithsonian Ctr. Astrophys.; Cornell U., LNS] (ORCID:0000000290173567), Holder, G. P. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana] (ORCID:0000000204636394), Holzapfel, W. L. [Harvard-Smithsonian Ctr. Astrophys.; UC, Berkeley], Hood, J. C. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., KICP], Hryciuk, A. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., EFI; Chicago U., KICP], Huang, N. [Harvard-Smithsonian Ctr. Astrophys.; UC, Berkeley] (ORCID:0000000335950359), Jhaveri, T. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. 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[Harvard-Smithsonian Ctr. Astrophys.; Texas Tech.] (ORCID:0000000309764755), Martsen, E. S. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP], Menanteau, F. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana, Astron. Dept.; Illinois U., Urbana (main)], Millea, M. [Harvard-Smithsonian Ctr. Astrophys.; UC, Berkeley] (ORCID:0000000173170551), Montgomery, J. [Harvard-Smithsonian Ctr. Astrophys.; McGill U.], Nakato, Y. [Harvard-Smithsonian Ctr. Astrophys.; Stanford U.], Natoli, T. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., KICP], Noble, G. I. [Harvard-Smithsonian Ctr. Astrophys.; Toronto U.] (ORCID:000000025254243X), Omori, Y. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP], Ouellette, A. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana] (ORCID:0000000301705638), Pan, Z. [Harvard-Smithsonian Ctr. Astrophys.; Argonne (main); Chicago U., KICP; Chicago U., EFI] (ORCID:0000000261649861), Paschos, P. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., EFI], Phadke, K. A. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana, Astron. Dept.; Illinois U., Urbana (main); SkAI, Chicago] (ORCID:000000017946557X), Pollak, A. W. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.], Prabhu, K. [Harvard-Smithsonian Ctr. Astrophys.; UC, Davis], Quan, W. [Harvard-Smithsonian Ctr. Astrophys.; Argonne (main); Chicago U., EFI; Chicago U., KICP], Rahimi, M. [Harvard-Smithsonian Ctr. Astrophys.; Melbourne U.], Rahlin, A. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP] (ORCID:0000000339531776), Reichardt, C. L. [Harvard-Smithsonian Ctr. Astrophys.; Melbourne U.] (ORCID:0000000322269169), Rouble, M. [Harvard-Smithsonian Ctr. Astrophys.; McGill U.], Ruhl, J. E. [Harvard-Smithsonian Ctr. Astrophys.; Case Western Reserve U.], Schiappucci, E. [Harvard-Smithsonian Ctr. Astrophys.; Melbourne U.], Silva Oliveira, A. C. [Harvard-Smithsonian Ctr. Astrophys.; Caltech; KIPAC, Menlo Park; Stanford U., HEPL; Stanford U.] (ORCID:0000000157555865), Simpson, A. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., Astron. Astrophys. Ctr.; Chicago U., KICP], Sobrin, J. A. [Harvard-Smithsonian Ctr. Astrophys.; Fermilab; Chicago U., KICP] (ORCID:0000000161555315), Stark, A. A. [Harvard-Smithsonian Ctr. Astrophys.], Stephen, J. [Harvard-Smithsonian Ctr. Astrophys.; Chicago U., EFI], Tandoi, C. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana, Astron. Dept.], Thorne, B. [Harvard-Smithsonian Ctr. Astrophys.; UC, Davis], Trendafilova, C. [Harvard-Smithsonian Ctr. Astrophys.; Illinois U., Urbana (main)]. 2026-02-11. SPT-3G D1: Compton-$y$ maps using data from the SPT-3G and Planck surveys. https://www.osti.gov/biblio/3019833
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