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Main Authors: Rauhut, S. J., Blake, C., Andrade, U., Noriega, H. E., Aguilar, J., Ahlen, S., BenZvi, S., Bianchi, D., Brooks, D., Claybaugh, T., Cuceu, A., de la Macorra, A., DeRose, J., Doel, P., Emas, N., Ferraro, S., Forero-Romero, J. E., Garcia-Quintero, C., Gaztañaga, E., Gutierrez, G., Heydenreich, S., Honscheid, K., Howlett, C., Huterer, D., Ishak, M., Joudaki, S., Joyce, R., Jullo, E., Kehoe, R., Kirkby, D., Kremin, A., Krolewski, A., Lahav, O., Lambert, A., Lamman, C., Landriau, M., Lange, J. U., Guillou, L. Le, Leauthaud, A., Manera, M., Meisner, A., Miquel, R., Nadathur, S., Newman, J. A., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Porredon, A., Prada, F., Pérez-Ràfols, I., Rossi, G., Ruggeri, R., Sanchez, E., Saulder, C., Schlegel, D., Semenaite, A., Silber, J., Sprayberry, D., Sun, Z., Tarlé, G., Weaver, B. A., Zarrouk, P., Zhou, R., Zou, H.
Format: Preprint
Published: 2025
Subjects:
Cosmology and Nongalactic Astrophysics
Online Access:https://arxiv.org/abs/2507.16098
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Table of Contents:
  • The action of gravitational physics across space-time creates observable signatures in the behaviour of light and matter. We perform combined-probe studies using data from the Baryon Oscillation Spectroscopic Survey (BOSS) and Dark Energy Spectroscopic Instrument survey Data Release 1 (DESI-DR1), in combination with three existing weak lensing surveys, the Kilo-Degree Survey (KiDS), the Dark Energy Survey (DES), and the Hyper Suprime-Cam Survey (HSC), to test and constrain General Relativity (GR) in the context of the standard model of cosmology (LCDM). We focus on measuring the gravitational estimator statistic, E_G, which describes the relative amplitudes of weak gravitational lensing and galaxy velocities induced by a common set of overdensities. By comparing our amplitude measurements with their predicted scale- and redshift-dependence within the GR+LCDM model, we demonstrate that our results are consistent with the predictions of the Planck cosmology. The redshift span of the DESI dataset allows us to perform these E_G measurements at the highest redshifts achieved to date, z ~ 1.

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