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Modern cosmological simulations predict that the first generation of stars formed with a mass scale around 100 solar masses about 300-400 million years after the Big Bang. When the first stars reached the end of their lives, many of them…

High Energy Astrophysical Phenomena · Physics 2014-07-30 Ke-Jung Chen

The chemical abundance patterns of the oldest stars in the Galaxy are expected to contain residual signatures of the first stars in the early universe. Numerous studies attempt to explain the intrinsic abundance scatter observed in some…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Joss Bland-Hawthorn , Torgny Karlsson , Sanjib Sharma , Mark Krumholz , Joe Silk

The nature of the first generation of stars in the Universe remains largely unknown. Observations imply the existence of massive primordial stars early in the history of the universe, and the standard theory for the growth of cosmic…

Astrophysics · Physics 2009-11-13 Naoki Yoshida , Kazuyuki Omukai , Lars Hernquist

The basic processes of the formation of the first stars in the primordial Universe are outlined and the implications for cosmological structure formation discussed. By employing theoretical and numerical models of cosmic structure evolution…

Astrophysics of Galaxies · Physics 2016-06-16 U. Maio

Observations have revealed that most stars are born in clusters. These systems, containing from tens to thousands of stars and typically significant mass in gas in the youngest systems, evolve due to a combination of stellar and star-gas…

Astrophysics · Physics 2007-05-23 Ian A. Bonnell

The formation of the first generations of stars at redshifts z > 15-20 signaled the transition from the simple initial state of the universe to one of increasing complexity. We here review recent progress in understanding the assembly…

Astrophysics · Physics 2009-11-13 Jarrett L. Johnson , Thomas H. Greif , Volker Bromm

We examine the dependence of stellar yields on the metallicity Z of the stellar population. This effect may be important for the very first chemical enrichment from Population III stars, at very low Z. In the range of massive stars, mass…

Astrophysics · Physics 2009-10-31 L. Portinari

The properties of the first galaxies are shaped in large part by the first generations of stars, which emit high energy radiation and unleash both large amounts of mechanical energy and the first heavy elements when they explode as…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-15 Jarrett L. Johnson

From the time the first stars formed over 13 billion years ago to the present, star formation has had an unexpectedly dynamic history. At first, the star formation rate density increased dramatically, reaching a peak 10 billion years ago…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-25 Mordecai-Mark Mac Low

Stars in star clusters are thought to form in a single burst from a common progenitor cloud of molecular gas. However, massive, old globular clusters -- with ages greater than 10 billion years and masses of several hundred thousand solar…

Astrophysics of Galaxies · Physics 2016-02-03 Chengyuan Li , Richard de Grijs , Licai Deng , Aaron M. Geller , Yu Xin , Yi Hu , Claude-Andre Faucher-Giguere

The chemical elements are created in nuclear fusion processes in the hot and dense cores of stars. The energy generated through nucleosynthesis allows stars to shine for billions of years. When these stars explode as massive supernovae, the…

Solar and Stellar Astrophysics · Physics 2014-08-22 Anna Frebel

The first star clusters and quasars resulted directly from the growth of linear density fluctuations in the early Universe. Since they emerged from a well-defined set of initial conditions, the interplay between observational data from the…

Astrophysics · Physics 2007-05-23 Abraham Loeb

The emergence of the first sources of light at redshifts of z ~ 10-30 signaled the transition from the simple initial state of the Universe to one of increasing complexity. We review recent progress in our understanding of the formation of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Torgny Karlsson , Volker Bromm , Joss Bland-Hawthorn

The first generation of stars was formed from primordial gas. Numerical simulations suggest that the first stars were predominantly very massive, with typical masses M > 100 Mo. These stars were responsible for the reionization of the…

Solar and Stellar Astrophysics · Physics 2015-05-18 D. Bahena , J. Klapp

We discuss the results of recent 3D simulations of first structure formation in relationship to the formation of the first stars. On the basis of a new, high-resolution AMR simulation (spatial dynamic range = 30,000,000), we conclude that…

Astrophysics · Physics 2009-10-31 Michael L. Norman , Tom Abel , Greg Bryan

The elegance of inflationary cosmology and cosmological perturbation theory ends with the formation of the first stars and galaxies, the initial sources of light that launched the phenomenologically rich process of cosmic reionization. Here…

Astrophysics of Galaxies · Physics 2016-01-27 Milos Milosavljevic , Chalence Safranek-Shrader

The first stars are believed to have formed a few hundred million years after the big bang in so-called dark matter minihalos with masses ~10^6 M_sun. Their radiation lit up the Universe for the first time, and the supernova explosions that…

Astrophysics of Galaxies · Physics 2015-01-23 Thomas H. Greif

Several emerging links between high-redshift observational cosmology and the Galactic fossil evidence found in the kinematics, metallicities and ages of Milky Way stars are discussed. In a flat Cold Dark Matter model with $\Omega\simeq 0.3$…

Astrophysics · Physics 2009-10-31 Jordi Miralda-Escude

The search for the first stars formed from metal-free gas in the universe is one of the key issues in astronomy because it relates to many fields, such as the formation of stars and galaxies, the evolution of the universe, and the origin of…

Solar and Stellar Astrophysics · Physics 2021-05-12 Takuma Suda , Takayuki R. Saitoh , Yuki Moritani , Tadafumi Matsuno , Toshikazu Shigeyama

Recent hydrodynamical simulations of the late stages of supernova remnant (SNR) evolution have revealed that as they merge with the ambient medium, SNRs implode, leading to the formation of dense clouds in their center. While being highly…

Astrophysics of Galaxies · Physics 2024-08-05 Leonard Elias Cornelius Romano , Andreas Burkert , Manuel Behrendt
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