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Compact stellar objects are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers kinetic energy to the star during the collision. This can…

High Energy Physics - Phenomenology · Physics 2023-07-07 Sandra Robles

Neutron stars can provide new insight into dark matter properties, as these dense objects capture dark matter particles very efficiently. It has recently been shown that the energy transfer in the dark matter capture process can lead to…

High Energy Physics - Phenomenology · Physics 2018-09-13 Nicole F. Bell , Giorgio Busoni , Sandra Robles

In many models, dark matter particles can elastically scatter with nuclei in planets, causing those particles to become gravitationally bound. While the energy expected to be released through the subsequent annihilations of dark matter…

Earth and Planetary Astrophysics · Physics 2015-05-27 Dan Hooper , Jason H. Steffen

Dark matter particles may be captured by a star and then thermalized in the star's core. At the end of its life a massive star collapses suddenly and a compact object is formed. The dark matter particles redistribute accordingly. In the…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Rui-Zhi Yang , Yi-Zhong Fan , Roni Waldman , Jin Chang

The annihilation of weakly interacting massive particles can provide an important heat source for the first (Pop. III) stars, potentially leading to a new phase of stellar evolution known as a "Dark Star". When dark matter (DM) capture via…

Astrophysics · Physics 2009-06-23 Katherine Freese , Douglas Spolyar , Anthony Aguirre

Gravitational potential fluctuations driven by bursty star formation can kinematically 'heat up' dark matter at the centres of dwarf galaxies. A key prediction of such models is that, at a fixed dark matter halo mass, dwarfs with a higher…

Astrophysics of Galaxies · Physics 2019-04-15 J. I. Read , M. G. Walker , P. Steger

Dark matter may be discovered through its capture in stars and subsequent annihilation. It is usually assumed that dark matter is captured after a single scattering event in the star, however this assumption breaks down for heavy dark…

High Energy Physics - Phenomenology · Physics 2020-06-22 Joseph Bramante , Antonio Delgado , Adam Martin

We show that a star orbiting close enough to an adiabatically grown supermassive black hole can capture a large number of weakly interacting massive particles (WIMPs) during its lifetime. WIMP annihilation energy release in low- to…

Astrophysics · Physics 2007-05-23 I. V. Moskalenko , L. L. Wai

We examine whether the accretion of dark matter onto neutron stars could ever have any visible external effects. Captured dark matter which subsequently annihilates will heat the neutron stars, although it seems the effect will be too small…

Astrophysics of Galaxies · Physics 2015-03-14 Arnaud de Lavallaz , Malcolm Fairbairn

We consider the capture of inelastic dark matter in white dwarves by inelastic spin-independent scattering on nuclei. We show that if the dark matter annihilates to standard-model particles then, under the assumption of primordial globular…

High Energy Physics - Phenomenology · Physics 2010-05-28 Matthew McCullough , Malcolm Fairbairn

If captured by the gravitational field of stars or other compact objects, dark matter can self-annihilate and produce a potentially detectable particle flux. In the case of superheavy dark matter ($ m_{X} \gtrsim 10^{8} GeV $), a large…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-27 Cosmin Ilie , Saiyang Zhang

White dwarfs and neutron stars are far-reaching and multi-faceted laboratories in the hunt for dark matter. We review detection prospects of wave-like, particulate, macroscopic and black hole dark matter that make use of several exceptional…

High Energy Physics - Phenomenology · Physics 2025-02-07 Joseph Bramante , Nirmal Raj

Most of the dark matter (DM) search over the last few decades has focused on WIMPs, but the viable parameter space is quickly shrinking. Asymmetric Dark Matter (ADM) is a WIMP-like DM candidate with slightly smaller masses and no present…

Astrophysics of Galaxies · Physics 2021-03-31 Troy J. Raen , Héctor Martínez-Rodríguez , Travis J. Hurst , Andrew R. Zentner , Carles Badenes , Rachel Tao

We discuss the consequences of the accretion of dark matter (DM) particles on compact stars such as white dwarfs and neutron stars. We show that in large regions of the DM parameter space, these objects are sensitive probes of the presence…

Astrophysics · Physics 2008-11-26 Gianfranco Bertone , Malcolm Fairbairn

The dense environment of neutron stars makes them an excellent target for probing dark matter interactions with the Standard Model. We study neutron star heating from capture of inelastic dark matter, which can evade direct detection…

High Energy Physics - Phenomenology · Physics 2023-05-24 Gerardo Alvarez , Aniket Joglekar , Mehrdad Phoroutan-Mehr , Hai-Bo Yu

If dark matter is composed of new particles, these may become captured after scattering with nuclei in the Sun, thermalise through additional scattering, and finally annihilate into neutrinos that can be detected on Earth. If dark matter…

High Energy Physics - Phenomenology · Physics 2019-05-09 Mattias Blennow , Stefan Clementz , Juan Herrero-Garcia

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

The first phase of stellar evolution in the history of the universe may be Dark Stars, powered by dark matter heating rather than by fusion. Weakly interacting massive particles, which are their own antiparticles, can annihilate and provide…

Cosmology and Nongalactic Astrophysics · Physics 2010-02-17 Douglas Spolyar , Katherine Freese , Paolo Gondolo , Anthony Aguirre , Peter Bodenheimer , Jeremy A. Sellwood , Naoki Yoshida

We study energy transport by asymmetric dark matter in the interiors of very low-mass stars and brown dwarfs. Our motivation is to explore astrophysical signatures of asymmetric dark matter, which otherwise may not be amenable to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Andrew R. Zentner , Andrew P. Hearin

White dwarfs, the most abundant stellar remnants, provide a promising means of probing dark matter (DM) interactions, complimentary to terrestrial searches. The scattering of dark matter from stellar constituents leads to gravitational…

High Energy Physics - Phenomenology · Physics 2021-11-01 Nicole F. Bell , Giorgio Busoni , Maura E. Ramirez-Quezada , Sandra Robles , Michael Virgato
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