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作者机构:Sub-department of Astrophysics University of Oxford Keble Road Oxford OX1 3RH United Kingdom Dunlap Institute and Department of Astronomy and Astrophysics University of Toronto 50 St George Street Toronto Ontario M5S 3H4 Canada CITA University of Toronto Toronto Ontario M5S 3H8 Canada Department of Physics and Astronomy University of Pennsylvania 209 South 33rd Street Philadelphia Pennsylvania 19104 USA Joseph Henry Laboratories of Physics Jadwin Hall Princeton University Princeton New Jersey 08544 USA Department of Astrophysical Sciences Peyton Hall Princeton University Princeton New Jersey 08544 USA Department of Physics and Astronomy University of British Columbia Vancouver British Columbia V6T 1Z4 Canada Department of Physics University of Rome “La Sapienza” Piazzale Aldo Moro 5 I-00185 Rome Italy Department of Physics Stanford University Stanford California 94305 USA Department of Physics and Astronomy University of Pittsburgh Pittsburgh Pennsylvania 15260 USA Astrophysics and Cosmology Research Unit School of Mathematics Statistics and Computer Science University of KwaZulu-Natal Durban 4041 South Africa Department of Physics Yale University New Haven Connecticut 06520 USA Department of Physics Cornell University Ithaca New York 14853 USA Berkeley Center for Cosmological Physics Lawrence Berkeley National Laboratory Berkeley California 94720 USA Astrophysics and Cosmology Research Unit School of Chemistry and Physics University of KwaZulu-Natal Durban 4041 South Africa National Institute for Theoretical Physics (NITheP) KZN node Durban 4001 South Africa Center for Computational Astrophysics Flatiron Institute New York New York 10010 USA NASA/Goddard Space Flight Center Greenbelt Maryland 20771 USA
出 版 物:《Physical Review D》 (Phy. Rev. D)
年 卷 期:2017年第95卷第6期
页 面:063525-063525页
核心收录:
基 金:Science and Technology Facilities Council, STFC University of Toronto, U of T Canada Foundation for Innovation, CFI Princeton University Ontario Research Fund-Research Excellence Government of Ontario University of Pennsylvania National Science Foundation, NSF, (1312380, 1214379, PHY-0855887, 1440226, AST-0408698, PHY-1214379, AST-0965625, PHY-0855887, 0408698) Economic and Social Research Council, ESRC, (ES/N013956/1)
主 题:Cosmic microwave background Cosmological parameters Cosmology
摘 要:We present cosmological constraints from the combination of the full mission nine-year WMAP release and small-scale temperature data from the pre-Planck Atacama Cosmology Telescope (ACT) and South Pole Telescope (SPT) generation of instruments. This is an update of the analysis presented in Calabrese et al. [Phys. Rev. D 87, 103012 (2013)], and highlights the impact on ΛCDM cosmology of a 0.06 eV massive neutrino—which was assumed in the Planck analysis but not in the ACT/SPT analyses—and a Planck-cleaned measurement of the optical depth to reionization. We show that cosmological constraints are now strong enough that small differences in assumptions about reionization and neutrino mass give systematic differences which are clearly detectable in the data. We recommend that these updated results be used when comparing cosmological constraints from WMAP, ACT and SPT with other surveys or with current and future full-mission Planck cosmology. Cosmological parameter chains are publicly available on the NASA’s LAMBDA data archive.