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Dark Stars are the very first phase of stellar evolution in the history of the universe: the first stars to form (typically at redshifts $z \sim 10-50$) are powered by heating from dark matter (DM) annihilation instead of fusion (if the DM…

Astrophysics · Physics 2011-02-11 Katherine Freese , Peter Bodenheimer , Douglas Spolyar , Paolo Gondolo

We have proposed that the first phase of stellar evolution in the history of the Universe may be Dark Stars (DS), powered by dark matter heating rather than by nuclear fusion, and in this paper we examine the history of these DS. The power…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Douglas Spolyar , Peter Bodenheimer , Katherine Freese , Palo Gondolo

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

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…

We have proposed that the first phase of stellar evolution in the history of the Universe may be Dark Stars (DS), powered by dark matter heating rather than by nuclear fusion. Weakly Interacting Massive Particles, which may be their own…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-18 Katherine Freese , Douglas Spolyar , Peter Bodenheimer , Paolo Gondolo

The first phase of stellar evolution in the history of the Universe may be Dark Stars, powered by dark matter heating rather than by nuclear fusion. Weakly Interacting Massive Particles, which may be their own antipartners, collect inside…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Katherine Freese , Cosmin Ilie , Douglas Spolyar , Monica Valluri , Peter Bodenheimer

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 Paolo Gondolo , Katherine Freese , Douglas Spolyar , Anthony Aguirre , Peter Bodenheimer , Jeremy A. Sellwood , Naoki Yoshida

The first stars to form in the history of the universe may have been powered by dark matter annihilation rather than by fusion. This new phase of stellar evolution may have lasted millions to billions of years. These dark stars can grow to…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-23 K. Freese , E. Ruiz , M. Valluri , C. Ilie , D. Spolyar , P. Bodenheimer

Primordial stars formed in the early universe are thought to be hosted by compact dark matter (DM) halos. If DM consists of Weakly Interacting Massive Particles (WIMPs), such stars may be powered by DM annihilation during the early phases…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-20 Shingo Hirano , Hideyuki Umeda , Naoki Yoshida

A new line of research on Dark Stars is reviewed, which suggests that the first stars to exist in the universe were powered by dark matter heating rather than by fusion. Weakly Interacting Massive Particles, which may be there own…

Astrophysics · Physics 2015-05-13 Katherine Freese , Peter Bodenheimer , Paolo Gondolo , Douglas Spolyar

Dark matter (DM) in protostellar halos can dramatically alter the current theoretical framework for the formation of the first stars. Heat from supersymmetric DM annihilation can overwhelm any cooling mechanism, consequently impeding the…

Astrophysics · Physics 2008-11-26 Katherine Freese , Paolo Gondolo , Douglas Spolyar

The first stars to form in the Universe may be powered by the annihilation of weakly interacting dark matter particles. These so-called dark stars, if observed, may give us a clue about the nature of dark matter. Here we examine which…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 P. Gondolo , Ji-Haeng Huh , Hyung Do Kim , S. Scopel

A mechanism is identified whereby dark matter (DM) in protostellar halos dramatically alters the current theoretical framework for the formation of the first stars. Heat from neutralino DM annihilation is shown to overwhelm any cooling…

Astrophysics · Physics 2009-06-23 Douglas Spolyar , Katherine Freese , Paolo Gondolo

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

We use the stellar evolution code MESA to study dark stars. Dark stars (DSs), which are powered by dark matter (DM) self-annihilation rather than by nuclear fusion, may be the first stars to form in the Universe. We compute stellar models…

Cosmology and Nongalactic Astrophysics · Physics 2015-02-16 Tanja Rindler-Daller , Michael H. Montgomery , Katherine Freese , Donald E. Winget , Bill Paxton

We study the effects of WIMP dark matter (DM) on the collapse and evolution of the first stars in the Universe. Using a stellar evolution code, we follow the pre-Main Sequence (MS) phase of a grid of metal-free stars with masses in the…

Astrophysics · Physics 2011-02-11 F. Iocco , A. Bressan , E. Ripamonti , R. Schneider , A. Ferrara , P. Marigo

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

Over the past decade, a consensus picture has emerged in which roughly a quarter of the universe consists of dark matter. The observational evidence for the existence of dark matter is reviewed: rotation curves of galaxies, weak lensing…

Astrophysics · Physics 2015-05-13 Katherine Freese

We study the evolution of the first stars in the universe (Population III) from the early pre-Main Sequence until the end of helium burning in the presence of WIMP dark matter annihilation inside the stellar structure. The two different…

Astrophysics · Physics 2009-11-13 F. Iocco , A. Bressan , E. Ripamonti , R. Schneider , A. Ferrara , P. Marigo

The first bright objects to form in the Universe might not have been "ordinary" fusion-powered stars, but "Dark Stars" (DSs) powered by the annihilation of dark matter (DM) in the form of Weakly Interacting Massive Particles (WIMPs). If…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-07 Tanja Rindler-Daller , Katherine Freese , Richard H. D. Townsend , Luca Visinelli
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