Results 1 to 10 of about 16,778 (99)

Population III stars: hidden or disappeared ? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
to appear in ...
TORNATORE, L, FERRARA, A, SCHNEIDER, R
openaire   +4 more sources

When did Population III star formation end? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We construct a theoretical framework to study Population III (Pop III) star formation in the post-reionization epoch (z ≲ 6) by combining cosmological simulation data with semi-analytical models. We find that due to radiative feedback (i.e. Lyman–Werner and ionizing radiation) massive haloes ($M_{\rm halo}\gtrsim 10^{9}\ \rm M_{\
Boyuan Liu, Volker Bromm
openaire   +2 more sources

Modelling population III stars for seminumerical simulations [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Theoretically modelling the 21-cm signals caused by Population III stars (Pop III stars) is the key to extracting fruitful information on Pop III stars from current and forthcoming 21-cm observations. In this work, we develop a new module of Pop III stars in which the escape fractions of ionizing photons and Lyman–Werner (LW ...
Toshiyuki Tanaka, Kenji Hasegawa
openaire   +2 more sources

The search for Population III stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
AbstractPopulation III stars, the first generation of stars formed from primordial Big Bang material with a top–heavy IMF, should contribute substantially to the Universe reionization and they are crucial for understanding the early metal enrichment of galaxies.
Serego Alighieri S.   +5 more
openaire   +3 more sources

The evolution of supermassive Population III stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Supermassive primordial stars forming in atomically-cooled halos at $z \sim15-20$ are currently thought to be the progenitors of the earliest quasars in the Universe. In this picture, the star evolves under accretion rates of $0.1 - 1$ $M_\odot$ yr$^{-1}$ until the general relativistic instability triggers its collapse to a black hole at masses of ...
Lionel Haemmerlé   +4 more
openaire   +3 more sources

The luminosity of Population III star clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
10 pages, 7 figures, to appear in ...
De Souza, Alexander L., Basu, Shantanu
openaire   +4 more sources

Magnetohydrodynamics of Population III Star Formation [PDF]

open access: yesThe Astrophysical Journal, 2008
37 pages, 10 figures, Submitted to ApJ, For high resolution figures, see http://astro3.sci.hokudai.ac.jp/~machida/astro-ph ...
Machida, Masahiro N.   +2 more
openaire   +2 more sources

The Transition from Population III to Population II Stars [PDF]

open access: yesThe Astrophysical Journal, 2004
4 pages, 2 figures.
Fang, Taotao, Cen, Renyue
openaire   +2 more sources

On Population III Star Formation [PDF]

open access: yesSymposium - International Astronomical Union, 1983
If primordial fluctuations were isothermal their amplitude at recombination would be non-linear on scales Mo ≃ 106÷9 M⊙. Since the Jeans mass after recombination is MJo ≃ 8 × 105 Ω−1/2 M⊙ the clouds of mass Mo would be able to form the first generation of compact objects, the so-called Population III.
A. Kashlinsky, M. J. Rees
openaire   +1 more source

POPULATION III STARS AROUND THE MILKY WAY [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We explore the possibility of observing Population III (Pop III) stars, born of primordial gas. Pop III stars with masses below 0.8 M ⊙ should survive to date though are not yet observed, but the existence of stars with low metallicity as
Yutaka Komiya   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy