Fifth force constraints from galaxy warps

Abstract

Intra-galaxy signals contain a wealth of information on fundamental physics, both the dark sector and the nature of gravity. While so far largely unexplored, such probes are set to rise dramatically in importance as upcoming surveys provide data of unprecedented quantity and quality on galaxy structure and dynamics. In this paper, we use warping of stellar disks to test the chameleon- or symmetron-screened fifth forces which generically arise when new fields couple to matter. We take r-band images of mostly late-type galaxies from the Nasa Sloan Atlas and develop an automated algorithm to quantify the degree of U-shaped warping they exhibit. We then forward-model the warp signal as a function of fifth-force strength $\Delta G/G_N$ and range ${\lambda }_C$, and the gravitational environments and internal properties of the galaxies, including full propagation of the non-Gaussian uncertainties. Convolving this fifth-force likelihood function with a Gaussian describing astrophysical and observational noise and then constraining $\Delta G/G_N$ and ${\lambda }_C$ by Markov Chain Monte Carlo, we find the overall likelihood to be significant increased ($\Delta \log (\mathcal{L})\simeq 20$) by adding a screened fifth force with ${\lambda }_C\simeq 2$ Mpc, $\Delta G/G_N\simeq 0.01$. The variation of $\Delta \log (\mathcal{L})$ with ${\lambda }_C$ is quantitatively as expected from the correlation of the magnitude of the fifth-force field with the force's range, and a similar model without screening achieves no increase in likelihood over the General Relativistic case $\Delta G=0$. Although these results are in good agreement with a previous analysis of the same model using offsets between galaxies' stellar and gas mass centroids (Desmond et al. 2018), we caution that the effects of confounding baryonic and dark matter physics must be thoroughly investigated for the results of the inference to be unambiguous.

19 pages, 15 figures; minor revision to match PRD published version

References in corpus (10)

• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Cluster Constraints on f(R) Gravity
• Equivalence Principle Implications of Modified Gravity Models
• N-body Simulations for f(R) Gravity using a Self-adaptive Particle-Mesh Code
• Cosmological Constraints on f(R) Acceleration Models
• Constraining chameleon models with cosmology
• The XMM Cluster Survey: Testing chameleon gravity using the profiles of clusters
• Constraint on the cosmological f(R) model from the multipole power spectrum of the SDSS luminous red galaxy sample and prospects for a future redshift survey
• Fifth force constraints from the separation of galaxy mass components
• Probing Self-interacting Dark Matter with Disk Galaxies in Cluster Environments

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• $H_0$ Tension, Swampland Conjectures and the Epoch of Fading Dark Matter
• Galaxy morphology rules out astrophysically relevant Hu-Sawicki $f(R)$ gravity
• Neutrino-Assisted Early Dark Energy: Theory and Cosmology
• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
• Screened Fifth Forces Mediated by Dark Matter-Baryon Interactions: Theory and Astrophysical Probes
• The global stability of M33 in MOND
• The Fifth Force in the Local Cosmic Web
• Constraints on Chameleon f(R)-Gravity from Galaxy Rotation Curves of the SPARC Sample
• Astrophysical Tests of Dark Matter Self-Interactions
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• Screening maps of the local Universe I -- Methodology
• Testing screened modified gravity with SDSS-IV-MaNGA
• Testing self-interacting dark matter with galaxy warps
• Screened fifth forces in parity-breaking correlation functions
• Stellar Streams in Chameleon Gravity
• Calibrating galaxy formation effects in galactic tests of fundamental physics