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The Atacama Cosmology Telescope: A Test of the Gravitational Force Law on Cosmological Scales Using the Kinematic Sunyaev-Zeldovich Effect

Fuente: arXiv

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Bibliographic Details
Main Authors:	Gallardo, Patricio A., Pardo, Kris, Philcox, Oliver H. E., Battaglia, Nicholas, Battistelli, Elia S., Bean, Rachel, Calabrese, Erminia, Choi, Steve K., Dünner, Rolando, Devlin, Mark, Dunkley, Joanna, Ferraro, Simone, Guan, Yilun, Healy, Erin, Hervías-Caimapo, Carlos, Hilton, Matt, Hincks, Adam D., Hood II, John C., Kosowsky, Arthur, La Posta, Adrien, Louis, Thibaut, Madhavacheril, Mathew S., McMahon, Jeff, Moodley, Kavilan, Mroczkowski, Tony, Naess, Sigurd, Newburgh, Laura, Niemack, Michael D., Page, Lyman A., Partridge, Bruce, Puddu, Roberto, Schaan, Emmanuel, Sehgal, Neelima, Sifón, Cristóbal, Spergel, David N., Staggs, Suzanne T., van Engelen, Alexander, Vargas, Cristian, Vavagiakis, Eve M., Wagoner, Kasey, Wollack, Edward J.
Format:	Preprint
Published:	2026
Subjects:	Cosmology and Nongalactic Astrophysics
Online Access:	Acceder al recurso
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_version_	1866910132984610816
author	Gallardo, Patricio A. Pardo, Kris Philcox, Oliver H. E. Battaglia, Nicholas Battistelli, Elia S. Bean, Rachel Calabrese, Erminia Choi, Steve K. Dünner, Rolando Devlin, Mark Dunkley, Joanna Ferraro, Simone Guan, Yilun Healy, Erin Hervías-Caimapo, Carlos Hilton, Matt Hincks, Adam D. Hood II, John C. Kosowsky, Arthur La Posta, Adrien Louis, Thibaut Madhavacheril, Mathew S. McMahon, Jeff Moodley, Kavilan Mroczkowski, Tony Naess, Sigurd Newburgh, Laura Niemack, Michael D. Page, Lyman A. Partridge, Bruce Puddu, Roberto Schaan, Emmanuel Sehgal, Neelima Sifón, Cristóbal Spergel, David N. Staggs, Suzanne T. van Engelen, Alexander Vargas, Cristian Vavagiakis, Eve M. Wagoner, Kasey Wollack, Edward J.
author_facet	Gallardo, Patricio A. Pardo, Kris Philcox, Oliver H. E. Battaglia, Nicholas Battistelli, Elia S. Bean, Rachel Calabrese, Erminia Choi, Steve K. Dünner, Rolando Devlin, Mark Dunkley, Joanna Ferraro, Simone Guan, Yilun Healy, Erin Hervías-Caimapo, Carlos Hilton, Matt Hincks, Adam D. Hood II, John C. Kosowsky, Arthur La Posta, Adrien Louis, Thibaut Madhavacheril, Mathew S. McMahon, Jeff Moodley, Kavilan Mroczkowski, Tony Naess, Sigurd Newburgh, Laura Niemack, Michael D. Page, Lyman A. Partridge, Bruce Puddu, Roberto Schaan, Emmanuel Sehgal, Neelima Sifón, Cristóbal Spergel, David N. Staggs, Suzanne T. van Engelen, Alexander Vargas, Cristian Vavagiakis, Eve M. Wagoner, Kasey Wollack, Edward J.
contents	The mean pairwise velocity of massive halos reflects the gravitational force law on cosmic scales. We combine cosmic microwave background intensity maps from the Atacama Cosmology Telescope and a galaxy catalog from the Sloan Digital Sky Survey to estimate the mean pairwise velocity using the kinematic Sunyaev-Zeldovich (kSZ) effect. On scales from 30 -- 230 megaparsecs, we constrain the gravitational acceleration between pairs of halos at separation $r$ to be $g\propto 1/r^n$ with $n=2.1\pm 0.3$, which is consistent with Newtonian gravity in an expanding spacetime (\textit{i.e.}, the standard $Λ$CDM model). This constraint shows agreement with an inverse quadratic radial dependence over the large distances separating galaxy halos, as expected in standard cosmology. Upcoming surveys have the potential to rule out $n = 1$ at $10σ$ significance. Our results establish the kSZ effect as a powerful tool for testing gravity on cosmological scales.
format	Preprint
id	arxiv_https___arxiv_org_abs_2604_14327
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	The Atacama Cosmology Telescope: A Test of the Gravitational Force Law on Cosmological Scales Using the Kinematic Sunyaev-Zeldovich Effect Gallardo, Patricio A. Pardo, Kris Philcox, Oliver H. E. Battaglia, Nicholas Battistelli, Elia S. Bean, Rachel Calabrese, Erminia Choi, Steve K. Dünner, Rolando Devlin, Mark Dunkley, Joanna Ferraro, Simone Guan, Yilun Healy, Erin Hervías-Caimapo, Carlos Hilton, Matt Hincks, Adam D. Hood II, John C. Kosowsky, Arthur La Posta, Adrien Louis, Thibaut Madhavacheril, Mathew S. McMahon, Jeff Moodley, Kavilan Mroczkowski, Tony Naess, Sigurd Newburgh, Laura Niemack, Michael D. Page, Lyman A. Partridge, Bruce Puddu, Roberto Schaan, Emmanuel Sehgal, Neelima Sifón, Cristóbal Spergel, David N. Staggs, Suzanne T. van Engelen, Alexander Vargas, Cristian Vavagiakis, Eve M. Wagoner, Kasey Wollack, Edward J. Cosmology and Nongalactic Astrophysics The mean pairwise velocity of massive halos reflects the gravitational force law on cosmic scales. We combine cosmic microwave background intensity maps from the Atacama Cosmology Telescope and a galaxy catalog from the Sloan Digital Sky Survey to estimate the mean pairwise velocity using the kinematic Sunyaev-Zeldovich (kSZ) effect. On scales from 30 -- 230 megaparsecs, we constrain the gravitational acceleration between pairs of halos at separation $r$ to be $g\propto 1/r^n$ with $n=2.1\pm 0.3$, which is consistent with Newtonian gravity in an expanding spacetime (\textit{i.e.}, the standard $Λ$CDM model). This constraint shows agreement with an inverse quadratic radial dependence over the large distances separating galaxy halos, as expected in standard cosmology. Upcoming surveys have the potential to rule out $n = 1$ at $10σ$ significance. Our results establish the kSZ effect as a powerful tool for testing gravity on cosmological scales.
title	The Atacama Cosmology Telescope: A Test of the Gravitational Force Law on Cosmological Scales Using the Kinematic Sunyaev-Zeldovich Effect
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2604.14327