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AIP Conference Proceedings, 2010
The standard cosmological model predicts that the first cosmological objects are formed when the age of the universe is a few hundred million years. Recent theoretical studies and numerical simulations consistently suggest that the first objects are very massive primordial stars.
Naoki Yoshida +2 more
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The standard cosmological model predicts that the first cosmological objects are formed when the age of the universe is a few hundred million years. Recent theoretical studies and numerical simulations consistently suggest that the first objects are very massive primordial stars.
Naoki Yoshida +2 more
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1993
In this review, we outline the current theory for the formation of stars in present-day molecular clouds and then extrapolate this paradigm to earlier generations of stars. We discuss the radiative signature of star formation, gravitational instabilities in circumstellar disks, and the current status of the initial mass function.
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In this review, we outline the current theory for the formation of stars in present-day molecular clouds and then extrapolate this paradigm to earlier generations of stars. We discuss the radiative signature of star formation, gravitational instabilities in circumstellar disks, and the current status of the initial mass function.
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Science, 1966
The binary LP 101-15/16 having the proper motion of 1.62 seconds of arc per year has been studied with the prime-focus spectrograph of the 200-inch (508 cm) telescope. Indications are that LP 101-15/16 is the first pair of pygmy stars ever discovered.
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The binary LP 101-15/16 having the proper motion of 1.62 seconds of arc per year has been studied with the prime-focus spectrograph of the 200-inch (508 cm) telescope. Indications are that LP 101-15/16 is the first pair of pygmy stars ever discovered.
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AIP Conference Proceedings, 1996
Soon after decoupling (redshift z≊1000), the opacity of contracting primordial clouds is determined mainly by Rayleigh scattering off neutral hydrogen. This process becomes essential for a contracting primeval cloud after its density exceeds n≊108 cm−3 when the cooling due to f‐b (free‐bound) emission dominates over Compton cooling off microwave ...
L. M. Ozernoy, V. F. Mukhanov
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Soon after decoupling (redshift z≊1000), the opacity of contracting primordial clouds is determined mainly by Rayleigh scattering off neutral hydrogen. This process becomes essential for a contracting primeval cloud after its density exceeds n≊108 cm−3 when the cooling due to f‐b (free‐bound) emission dominates over Compton cooling off microwave ...
L. M. Ozernoy, V. F. Mukhanov
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AIP Conference Proceedings, 2014
We investigate the formation of the first stars in 60 minihalos found in cosmological simulations, utilizing radiation hydrodynamics simulations. We find ∼70% of the halos host multiple stellar system, while the rest of them have single stars. The stellar mass found in our simulations is in the range of 0.5M⊙ < M < 300M⊙, peaking at several tens of ...
H. Susa, K. Hasegawa, N. Tominaga
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We investigate the formation of the first stars in 60 minihalos found in cosmological simulations, utilizing radiation hydrodynamics simulations. We find ∼70% of the halos host multiple stellar system, while the rest of them have single stars. The stellar mass found in our simulations is in the range of 0.5M⊙ < M < 300M⊙, peaking at several tens of ...
H. Susa, K. Hasegawa, N. Tominaga
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The First Stars in the Universe
Scientific American, 2001R B, Larson, V, Bromm
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From the first stars to the first galaxies
New Astronomy Reviews, 2006Abstract We present the results from three-dimensional radiation-hydrodynamics calculations of the formation and evolution of H ii regions around the first stars. We carry out ray-tracing simulations of ionizing radiation transfer by embedding a population III star at the center of the primordial gas cloud formed in a small dark halo.
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