The formation and evolution of young low-mass stars within halos with high concentration of dark matter particles

Abstract

The formation and evolution of low-mass stars within dense halos of dark matter (DM) leads to evolution scenarios quite different from the classical stellar evolution. As a result of our detailed numerical work, we describe these new scenarios for a range of DM densities on the host halo, a range of scattering cross sections of the DM particles considered, and for stellar masses from 0.7 to 3 M_{\odot}. For the first time, we also computed the evolution of young low-mass stars in their Hayashi track in the pre-main sequence phase and found that, for high DM densities, these stars stop their gravitational collapse before reaching the main sequence, in agreement with similar studies on first stars. Such stars remain indefinitely in an equilibrium state with lower effective temperatures (|ΔT_eff| > 10^3 K for a star of one solar mass), the annihilation of captured DM particles in their core being the only source of energy. In the case of lower DM densities, these proto-stars continue their collapse and progress through the main sequence burning hydrogen at a lower rate. A star of 1 M_{\odot} will spend a time greater than the current age of the universe consuming all the hydrogen in its core if it evolves in a halo with DM density ρ_χ=10^9 GeV cm^-3. We also show the strong dependence of the effective temperature and luminosity of these stars on the characteristics of the DM particles and how this can be used as an alternative method for DM research.

10 pages, 9 figures. Accepted for publication in ApJ. (v2: refs and Fig8 updated)

References in corpus (13)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• WIMP Annihilation and Cooling of Neutron Stars
• Compact Stars as Dark Matter Probes
• Dark matter and the first stars: a new phase of stellar evolution
• Improved Spin-Dependent WIMP Limits from a Bubble Chamber
• Dark matter burners
• The Zero Age Main Sequence of WIMP burners
• The nature of dark matter and the density profile and central behavior of relaxed halos
• Dark stars: Implications and constraints from cosmic reionization and extragalactic background radiation
• Grids of stellar evolution models for asteroseismology (CESAM + POSC)
• The Effect of Dark Matter on the First Stars: A New Phase of Stellar Evolution
• Multisite photometry of the pulsating Herbig Ae star V346 Ori

Cited by in corpus (47)

• Can Neutron stars constrain Dark Matter?
• Constraining Asymmetric Dark Matter through observations of compact stars
• Limits on Self-Interacting Dark Matter
• Effect of low mass dark matter particles on the Sun
• Dark Stars: A Review
• Dark-matter admixed white dwarfs
• Equilibrium Structure and Radial Oscillations of Dark Matter Admixed Neutron Stars
• Radial oscillations of strange quark stars admixed with condensed dark matter
• First star formation with dark matter annihilation
• First asteroseismic limits on the nature of dark matter
• Solar constraints on asymmetric dark matter
• Gravitational effects of condensed dark matter on strange stars
• Observing Dark Stars with JWST
• Higgs portals to pulsar collapse
• Helioseismology with long range dark matter-baryon interactions
• Thermal conduction by dark matter with velocity and momentum-dependent cross-sections
• The capture of dark matter particles through the evolution of low-mass stars
• On (Not)-Constraining Heavy Asymmetric Bosonic Dark Matter
• Towards the use of asteroseismology to investigate the nature of dark matter
• Generalised form factor dark matter in the Sun
• Constraints on light dark matter particles using white dwarf stars
• Signatures of dark matter burning in nuclear star clusters
• The WIMP capture process for dark stars in the early universe
• Probing the Existence of a Dark Matter Isothermal Core Using Gravity Modes
• A particle dark matter footprint on the first generation of stars
• Probing dark matter crests with white dwarfs and IMBHs
• Accretion-Induced Collapse of Dark Matter Admixed White Dwarfs -- I: Formation of Low-mass Neutron Stars
• Impacts of Dark Stars on Reionization and Signatures in the Cosmic Microwave Background
• Updated constraints on velocity and momentum-dependent asymmetric dark matter
• Millisecond pulsars modelled as strange quark stars admixed with condensed dark matter
• Double dark-matter admixed neutron star
• Exploring non-radial oscillation modes in dark matter admixed neutron stars
• Dark Matter that can form Dark Stars
• Heating of galactic gas by dark matter annihilation in ultracompact minihalos
• Stellar convective cores as dark matter probes
• Detectability of Supermassive Dark Stars with the Roman Space Telescope
• Dark Matter-admixed Rotating White Dwarfs as Peculiar Compact Objects
• The Sun and stars: Giving light to dark matter
• Capture rate of weakly interacting massive particles (WIMPs) in binary star systems
• The Effect of Dark Matter on Stars at the Galactic Center: The Paradox of Youth Problem
• The Sun as a probe of Fundamental Physics and Cosmology
• Constraining the parameter space of branon dark matter using white dwarf stars
• Dark Dwarfs: Dark Matter-Powered Sub-Stellar Objects Awaiting Discovery at the Galactic Center
• Constraints on asymmetric dark matter from asteroseismology
• Dark matter searches with asteroseismology
• Constraining the scalar singlet and inert dark matter models using neutron stars
• Probing Heavy Dark Matter in Red Giants