@article{1f768afc2b174f64a7cc9398e0d4d440,
title = "Measurement of the thermal Sunyaev-Zel'dovich effect around cosmic voids",
abstract = "We stack maps of the thermal Sunyaev-Zel'dovich effect produced by the Planck Collaboration around the centers of cosmic voids defined by the distribution of galaxies in the CMASS sample of the Baryon Oscillation Spectroscopic Survey, scaled by the void effective radii. We report a first detection of the associated cross-correlation at the 3.4σ level: voids are under-pressured relative to the cosmic mean. We compare the measured Compton-y profile around voids with a model based solely on the spatial modulation of halo abundance with environmental density. The amplitude of the detected signal is marginally lower than predicted by an overall amplitude αv=0.67±0.2. We discuss the possible interpretations of this measurement in terms of modeling uncertainties, excess pressure in low-mass halos, or nonlocal heating mechanisms.",
author = "David Alonso and Hill, {J. Colin} and Ren{\'e}e Hlo{\v Z}ek and Spergel, {David N.}",
note = "Funding Information: The authors would like to thank Ariel Amaral, Nick Battaglia, Bhuvnesh Jain, Adam Lidz, John Peacock, Mark Richardson, Ben Wandelt, and Hans Winther for useful comments and discussions. We also acknowledge the anonymous journal referee, whose comments helped improve the quality of this paper. D. A. and R. H. also thank the Center for Computational Astrophysics, part of the Flatiron Institute, for their hospitality. The Simons Foundation supports the Flatiron Institute. D. A. acknowledges support from the Science and Technology Facilities Council and the Leverhulme and Beecroft Trusts. This work was partially supported by a Junior Fellow award from the Simons Foundation to JCH. The Dunlap Institute is funded through an endowment established by the David Dunlap family and the University of Toronto. R. H. would like to acknowledge that the land on which the University of Toronto is built is the traditional territory of the Haudenosaunee, and most recently, the territory of the Mississaugas of the New Credit First Nation. The territory was the subject of the Dish With One Spoon Wampum Belt Covenant, an agreement between the Iroquois Confederacy and the Ojibwe and allied nations to peaceably share and care for the resources around the Great Lakes. This territory is also covered by the Upper Canada Treaties. R. H. is grateful to have the opportunity to work in the community, on this territory. APPENDIX: Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = mar,
day = "15",
doi = "10.1103/PhysRevD.97.063514",
language = "English (US)",
volume = "97",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "6",
}