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相关论文: Limits on Population III star formation in minihal…

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We study formation of stellar mass binary black holes (BBHs) originating from Population III (PopIII) stars, performing stellar evolution simulations for PopIII binaries with MESA. We find that a significant fraction of PopIII binaries form…

高能天体物理现象 · 物理学 2017-05-31 Kohei Inayoshi , Ryosuke Hirai , Tomoya Kinugawa , Kenta Hotokezaka

We assess the feasibility of detecting the compact object remnants from Population III (Pop III) stars in nearby dense star clusters, where they become luminous again as X-ray binaries (XRBs) and tidal disruption events (TDEs) via strong…

高能天体物理现象 · 物理学 2021-10-04 Rabia Husain , Boyuan Liu , Volker Bromm

Third-generation (3G) gravitational-wave (GW) detectors will be able to observe binary-black-hole mergers (BBHs) up to redshift of $\sim 30$. This gives unprecedented access to the formation and evolution of BBHs throughout cosmic history.…

宇宙学与河外天体物理 · 物理学 2021-07-14 Ken K. Y. Ng , Salvatore Vitale , Will M. Farr , Carl L. Rodriguez

The theory of the formation of the first stars in the Universe, the so-called Population III (Pop III), has until now largely neglected the impact of magnetic fields. Complementing a series of recent studies of the magneto-hydrodynamic…

星系天体物理 · 物理学 2022-09-07 Cynthia R. Saad , Volker Bromm , Mounib El Eid

Recently, Nakajima et al. (2025) presented James Webb Space Telescope observations of the $z=6.6$ Population III (Pop III) candidate LAP1-B, which is gravitationally lensed by galaxy cluster MACS J0416. We argue that this is the first…

星系天体物理 · 物理学 2025-10-17 Eli Visbal , Ryan Hazlett , Greg L. Bryan

We present constraints on the patchy reionization by measuring the trispectrum of the Planck 2015 cosmic microwave background (CMB) temperature anisotropies. The patchy reionization leads to anisotropies in the CMB optical depth, and the…

宇宙学与河外天体物理 · 物理学 2018-03-14 Toshiya Namikawa

Understanding the growth of high redshift massive black holes (MBHs) is a problem of great astrophysical interest. The most luminous quasars at $z>6$ are frequently observed but they represent only the tip of the iceberg as the majority of…

星系天体物理 · 物理学 2018-07-18 Muhammad A. Latif , Marta Volonteri , John H. Wise

A PopIII/Pop II transition from massive to normal stars is predicted to occur when the metallicity of the star forming gas crosses the critical range Z_cr = 10^(-5 +/- 1) Z_sun. To investigate the cosmic implications of such process we use…

天体物理学 · 物理学 2009-11-13 L. Tornatore , A. Ferrara , R. Schneider

We model early star forming regions and their chemical enrichment by Population III (Pop III) supernovae with nucleosynthetic yields featuring high [C/Fe] ratios and pair-instability supernova (PISN) signatures. We aim to test how well…

星系天体物理 · 物理学 2015-09-30 Alexander P. Ji , Anna Frebel , Volker Bromm

We explore the effect of variations in the Population III (Pop III) initial mass function (IMF) and star-by-star feedback on early galaxy formation and evolution using the Aeos simulations. We compare simulations with two different Pop III…

Hydrodynamical cosmological simulations predict that the metal-free Population III (Pop III) stars were likely very massive and, therefore, short-lived. However, they left their chemical imprint on their descendants, which can also have…

星系天体物理 · 物理学 2023-05-05 Irene Vanni , Stefania Salvadori , Ása Skúladóttir

In the standard model of cosmology ($\Lambda$CDM) the first stars, star clusters, and galaxies are expected to have formed in low-mass dark matter halos at high redshifts ($z \sim 6 - 30$). Attempts to predict the properties and abundances…

星系天体物理 · 物理学 2026-04-14 Olof Nebrin

The recent discovery of the gravitational wave source GW150914 has revealed a coalescing binary black hole (BBH) with masses of $\sim 30~M_\odot$. Previous proposals for the origin of such a massive binary include Population III (PopIII)…

星系天体物理 · 物理学 2016-07-27 Kohei Inayoshi , Kazumi Kashiyama , Eli Visbal , Zoltan Haiman

We present a semi-analytic, computationally inexpensive model to identify halos capable of forming a Population III star in cosmological simulations across a wide range of times and environments. This allows for a much more complete and…

宇宙学与河外天体物理 · 物理学 2015-06-16 Brian D. Crosby , Brian W. O'Shea , Britton D. Smith , Matthew J. Turk , Oliver Hahn

We provide a status report on our current understanding of the mass scales for Pop III.1 and Pop III.2 stars. Since the last review (Norman 2008), substantial progress has been made both numerically and analytically on the late stages of…

宇宙学与河外天体物理 · 物理学 2015-05-20 Michael L. Norman

Current numerical studies suggest that the first galaxies formed a few stars at a time and were enriched only gradually by the first heavy elements. However, the large box sizes in these models cannot resolve primordial supernova explosions…

天体物理学 · 物理学 2009-11-13 Daniel Whalen , Bob Van Veelen , Brian W. O'Shea , Michael L. Norman

We present improved synthesis models of the evolving spectrum of the UV/X-ray diffuse background, updating and extending our previous results. A "minimal cosmic reionization model" is presented in which the galaxy UV emissivity traces…

宇宙学与河外天体物理 · 物理学 2011-03-29 Francesco Haardt , Piero Madau

The formation of the first stars (Population III; PopIII) marks the end of the dark ages of the universe, a subject of lively scientific debate. Not (yet) accessible to direct observations, this early stage of the universe is mostly studied…

天体物理学 · 物理学 2009-05-14 M. Raue , T. Kneiske , D. Mazin

Observations of the Lyman-alpha forest and of high-redshift galaxies at z~5-10 imply that there were just enough photons to maintain the universe in an ionized state at z~5-6, indicating a "photon-starved" end to reionization. The ionizing…

宇宙学与河外天体物理 · 物理学 2015-06-11 Marcelo A. Alvarez , Kristian Finlator , Michele Trenti

We demonstrate the potential of line-intensity mapping to place constraints on the initial mass function (IMF) of Population III stars via measurements of the mean He II 1640A/H$\alpha$ line-intensity ratio. We extend the 21cmFAST code with…

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