A new probe of dark matter-baryon interactions in compact stellar systems
arXiv:2408.01818 · doi:10.1103/PhysRevD.111.L061302
Abstract
We investigate the astrophysical consequences of an attractive long-range interaction between dark matter and baryonic matter. Our study highlights the role of this interaction in inducing dynamical friction between dark matter and stars, which can significantly influence the evolution of compact stellar systems. Using the star cluster in Eridanus II as a case study, we derive a new stringent upper bound on the interaction strength for the interaction range pc. This constraint is independent of the dark matter mass and can improve the existing model-independent limits on by a few orders of magnitude. Furthermore, we observe that the constraint is insensitive to the mass of the stellar system and the dark matter density in the stellar system as long as the system is dark matter dominated. This new approach can be applied to many other stellar systems, and we obtain comparable constraints from compact stellar halos observed in ultrafaint dwarf galaxies.
Accepted for publication in Physical Review D Letters
References in corpus (56)
- Ultralight scalars as cosmological dark matter
- Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
- Tests of the Gravitational Inverse-Square Law
- The NANOGrav 15-year Data Set: Search for Signals from New Physics
- Eight New Milky Way Companions Discovered in First-Year Dark Energy Survey Data
- Beasts of the Southern Wild: Discovery of nine Ultra Faint satellites in the vicinity of the Magellanic Clouds
- Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
- Wave Dark Matter
- Constraints on MACHO Dark Matter from Compact Stellar Systems in Ultra-Faint Dwarf Galaxies
- Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies
- Observations of Milky Way Dwarf Spheroidal galaxies with the Fermi-LAT detector and constraints on Dark Matter models
- A Keck/DEIMOS spectroscopic survey of faint Galactic satellites: searching for the least massive dwarf galaxies
- A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy
- Is dark matter with long-range interactions a solution to all small-scale problems of ΛCDM cosmology?
- Sagittarius II, Draco II and Laevens 3: three new Milky Way satellites discovered in the Pan-STARRS 1 3pi Survey
- Formation and structure of ultralight bosonic dark matter halos
- The Least Luminous Galaxy: Spectroscopy of the Milky Way Satellite Segue 1
- EROS and MACHO Combined Limits on Planetary Mass Dark Matter in the Galactic Halo
- Segue 2: A Prototype of the Population of Satellites of Satellites
- Strong Constraints on Fuzzy Dark Matter from Ultrafaint Dwarf Galaxy Eridanus II
- Pre-launch estimates for GLAST sensitivity to Dark Matter annihilation signals
- Farthest Neighbor: The Distant Milky Way Satellite Eridanus II
- Dark Nuclei I: Cosmology and Indirect Detection
- Detecting dark matter WIMPs in the Draco dwarf: a multi-wavelength perspective
- Stable Bound States of Asymmetric Dark Matter
- Subaru through a different lens: microlensing by extended dark matter structures
- Deep imaging of Eridanus II and its lone star cluster
- Big Bang Darkleosynthesis
- Long-Range Forces in Direct Dark Matter Searches
- Searches for Dark Matter annihilation signatures in the Segue 1 satellite galaxy with the MAGIC-I telescope
- VERITAS Deep Observations of the Dwarf Spheroidal Galaxy Segue 1
- Nuclear Structure of Bound States of Asymmetric Dark Matter
- Gravitational microlensing by dark matter in extended structures
- Looking for Axion Dark Matter in Dwarf Spheroidals
- Resolved Dwarf Galaxy Searches within ~5 Mpc with the Vera Rubin Observatory and Subaru Hyper Suprime-Cam
- Strong constraints on decay and annihilation of dark matter from heating of gas-rich dwarf galaxies
- Searching for Light in the Darkness: Bounds on ALP Dark Matter with the optical MUSE-Faint survey
- Gas-rich dwarf galaxies as a new probe of dark matter interactions with ordinary matter
- Yukawa Bound States of a Large Number of Fermions
- A constraint on light primordial black holes from the interstellar medium temperature
- Gas Heating from Spinning and Non-Spinning Evaporating Primordial Black Holes
- Direct Detection of Bound States of Asymmetric Dark Matter
- Probing dark matter with star clusters: a dark matter core in the ultra-faint dwarf Eridanus II
- Eridanus II: A Fossil from Reionization with an Off-Center Star Cluster
- Deadly dark matter cusps vs faint and extended star clusters: Eridanus II and Andromeda XXV
- Detecting Composite Dark Matter with Long Range and Contact Interactions in Gas Clouds
- Interstellar Gas Heating by Primordial Black Holes
- Constraints on Dark Matter from Dynamical Heating of Stars in Ultrafaint Dwarfs. Part 2: Substructure and the Primordial Power Spectrum
- Cosmologically Varying Kinetic Mixing
- Constraints on Dark Matter from Dynamical Heating of Stars in Ultrafaint Dwarfs. Part 1: MACHOs and Primordial Black Holes
- Astrophysical Observations of a Dark Matter-Baryon Fifth Force
- Constraining axion and compact dark matter with interstellar medium heating
- Astrophysical Plasma Instabilities induced by Long-Range Interacting Dark Matter
- Singularities in the Gravitational Capture of Dark Matter through Long-Range Interactions
- EDGE: the puzzling ellipticity of Eridanus II's star cluster and its implications for dark matter at the heart of an ultra-faint dwarf
- Ultra cold neutron trap as a tool to search for dark matter with long-range radius of forces