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The presence of a dissipative dark matter (DM) sector may allow for the trapping of a significant DM mass inside stars, either during structure formation or by accretion over their lifetime, influencing stellar behavior well into the Main…

High Energy Physics - Phenomenology · Physics 2022-03-21 Gil Peled , Tomer Volansky

Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their…

Astrophysics · Physics 2011-02-11 H. Belkus , J. Van Bever , D. Vanbeveren

Weakly Interacting Massive Particles (WIMPs) are one of the main candidates for the dark matter in the Universe. If these particles make up the dark matter, then they can be captured by the Sun or the Earth, sink to the respective cores,…

High Energy Physics - Phenomenology · Physics 2009-01-06 Mattias Blennow , Joakim Edsjo , Tommy Ohlsson

We investigate the influence of the external tidal field of a dark matter halo on the dynamical evolution of star clusters using direct N-body simulations, where we assume that the halo is described by a Navarro, Frenk & White mass profile…

Astrophysics of Galaxies · Physics 2009-09-28 A. K. Praagman , J. R. Hurley , C. Power

We explore the possible signatures of dark matter (DM) pair annihilations in the nearby dwarf spheroidal galaxy Draco. After investigating the mass models for Draco in the light of available observational data, we carefully model the DM…

Astrophysics · Physics 2008-11-26 S. Colafrancesco , S. Profumo , P. Ullio

Super-weakly interacting massive particles produced in the late decays of weakly interacting massive particles (WIMPs) are generic in large regions of supersymmetric parameter space and other frameworks for physics beyond the standard…

High Energy Physics - Phenomenology · Physics 2013-08-08 Jose A. R. Cembranos , Manoj Kaplinghat

Weakly interacting massive particles (WIMPs) are a viable candidate for the relic abundance of dark matter (DM) produced in the early universe. So far WIMPs have eluded direct detection through interactions with baryonic matter. Neutrino…

Astrophysics · Physics 2009-11-13 Zacharia Myers , Adi Nusser

In the context of non-standard cosmologies, an early matter-dominated (EMD) era can significantly alter the conventional dark matter (DM) genesis. In this work, we reexamine the impact of an EMD on the weakly- and feebly-interacting massive…

High Energy Physics - Phenomenology · Physics 2025-03-10 Javier Silva-Malpartida , Nicolás Bernal , Joel Jones-Pérez , Roberto A. Lineros

In this last paper in a series of three on weakly interacting massive particle (WIMP) dark matter in the solar system, we focus on WIMPs bound to the system by gravitationally scattering off of planets. We present simulations of WIMP orbits…

High Energy Astrophysical Phenomena · Physics 2009-07-30 Annika H. G. Peter

Some severe constraints on asymmetric dark matter are based on the scenario that certain types of WIMPs can form mini-black holes inside neutron stars that can lead to their destruction. A crucial element for the realization of this…

Solar and Stellar Astrophysics · Physics 2014-07-02 Martin Autzen , Chris Kouvaris

We study the effects of feebly or non-annihilating weakly interacting Dark Matter (DM) particles on stars that live in DM environments denser than that of our Sun. We find that the energy transport mechanism induced by DM particles can…

Solar and Stellar Astrophysics · Physics 2013-12-04 Fabio Iocco , Marco Taoso , Florent Leclercq , Georges Meynet

The first stars in the universe form inside $\sim 10^6 M_\odot$ dark matter (DM) haloes whose initial density profiles are laid down by gravitational collapse in hierarchical structure formation scenarios. During the formation of the first…

Astrophysics · Physics 2011-02-11 Katherine Freese , Paolo Gondolo , J. A. Sellwood , Douglas Spolyar

Neutron stars change their structure with accumulation of dark matter. We study how their mass is influenced from the environment. Close to the sun, the dark matter accretion from the neutron star does not have any effect on it. Moving…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-10 Antonino Del Popolo , Morgan Le Delliou , Maksym Deliyergiyev

WIMP direct detection experiments are just reaching the sensitivity required to detect galactic dark matter in the form of neutralinos. Data from these experiments are usually analysed under the simplifying assumption that the Milky Way…

Astrophysics · Physics 2008-11-26 Anne M Green

After a review of the many effects of metallicity on the evolution of rotating and non-rotating stars, we discuss the consequences of a high metallicity on massive star populations and on stellar nucleosynthesis. The most striking effect of…

Astrophysics · Physics 2007-05-23 Georges Meynet , Nami Mowlavi , Andre Maeder

We revisit the possibility of constraining the properties of dark matter (DM) by studying the epoch of cosmic reionization. Previous studies have shown that DM annihilation was unlikely to have provided a large fraction of the photons that…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-21 Alexander A. Kaurov , Dan Hooper , Nickolay Y. Gnedin

Rotation appears as a dominant effect in massive star evolution. It largely affects all the model outputs: inner structure, tracks, lifetimes, isochrones, surface compositions, blue to red supergiant ratios, etc. At lower metallicities, the…

Astrophysics · Physics 2007-05-23 André Maeder , Georges Meynet

We studied the rate at which stars capture dark matter (DM) particles, considering different assumptions regarding the DM characteristics and in particular investigating how the stellar physics influences the capture rate. Two scenarios…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-18 Ilídio Lopes , Jordi Casanellas , Daniel Eugénio

We introduce a set of stellar models for massive stars whose evolution has been affected by mass transfer in a binary system, at a range of metallicities. As noted by other authors, the effect of such mass transfer is frequently more than…

Astrophysics · Physics 2008-11-26 L. M. Dray , C. A. Tout

Stars spend most of their lifetime on the main sequence (MS), where hydrogen burning establishes the internal chemical structure that governs the subsequent evolution. In massive stars, mass loss through winds and binary interactions can…

Solar and Stellar Astrophysics · Physics 2026-04-30 Adam Brček , Ryosuke Hirai , Ilya Mandel , Harmony Lower
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