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We present a generalization of the multiphase chemical evolution model applied to a wide set of theoretical galaxies with different masses and morphological types. This generalized set of models has been computed using the so-called…

天体物理学 · 物理学 2007-05-23 M. Molla , A. I. Diaz , F. Ferrini

In this review paper, we aim at providing a global outlook on the progresses made in the recent years to characterize the role of magnetic fields during the embedded phases of the star formation process. Thanks to the development of…

星系天体物理 · 物理学 2022-09-07 Anaëlle Maury , Patrick Hennebelle , Josep Miquel Girart

An important task in visualization is the extraction and highlighting of dominant features in data to support users in their analysis process. Topological methods are a well-known means of identifying such features in deterministic fields.…

人机交互 · 计算机科学 2023-01-09 Dominik Vietinghoff , Michael Böttinger , Gerik Scheuermann , Christian Heine

Recent simulations of the formation of the first luminous objects in the universe predict isolated very massive stars to form in dark matter halos with virial temperatures large enough to allow significant amounts of molecular hydrogen to…

天体物理学 · 物理学 2009-11-10 John H. Wise , Tom Abel

We consider the scenario where our observable universe is devised as a dynamical four-dimensional hypersurface embedded in a five-dimensional bulk spacetime, with a large extra dimension, which is the {\it generalization of the flat FRW…

广义相对论与量子宇宙学 · 物理学 2008-11-26 J. Ponce de Leon

We present a light and fast, public available, ray-tracer {\tt Splotch} software tool which supports the effective visualization of cosmological simulations data. We describe the algorithm it relies on, which is designed in order to deal…

天体物理学 · 物理学 2008-12-18 K. Dolag , M. Reinecke , C. Gheller , S. Imboden

The first prototypes of quantum computers sparked interest in quantum computing and the basic principles of quantum mechanics. The education project on the physical bases of quantum computing is part of this context, based on the…

量子物理 · 物理学 2022-09-08 Francesco Sisini , Igor Ciminelli , Fabio Antonio Bovino

Simulations of galaxy evolution aim to capture our current understanding as well as to make predictions for testing by future experiments. Simulations and observations are often compared in an indirect fashion: physical quantities are…

宇宙学与河外天体物理 · 物理学 2015-06-05 R. Overzier , G. Lemson , R. E. Angulo , E. Bertin , J. Blaizot , B. M. B. Henriques , G. -D. Marleau , S. D. M. White

We perform simulations of star cluster formation to investigate the morphological evolution of embedded star clusters in the earliest stages of their evolution. We conduct our simulations with Torch, which uses the AMUSE framework to couple…

The James Webb Space Telescope (JWST) has opened a window on many new puzzles in the early Universe, including a population of high-redshift star clusters with extremely high stellar surface density, suggesting unique star formation…

Observations of protostars are often compared with synthetic observations of models in order to infer the underlying physical properties of the protostars. The majority of these models have a single protostar, attended by a disc and an…

太阳与恒星天体物理 · 物理学 2018-01-24 O. Lomax , A. P. Whitworth

Observations made using large ground-based and space-borne telescopes have probed cosmic history all the way from the present-day to a time when the Universe was less than a tenth of its present age. Earlier on lies the remaining frontier,…

宇宙学与河外天体物理 · 物理学 2015-05-13 Volker Bromm , Naoki Yoshida , Lars Hernquist , Christopher F. McKee

We use Smoothed Particle Hydrodynamics to simulate the formation of a massive (10^6Msun) stellar cluster system formed from the gravitational collapse of a turbulent molecular cloud. We investigate the hierarchical clustering properties of…

太阳与恒星天体物理 · 物理学 2015-05-27 James E. Dale , Ian Bonnell

Detailed models of galactic disk formation and evolution require knowledge about the initial conditions under which disk galaxies form, the boundary conditions that affect their secular evolution and the micro-physical processes that drive…

天体物理学 · 物理学 2015-05-13 Andreas Burkert

One way of recovering information about the initial conditions of the Universe is by measuring features of the cosmological density field which are preserved during gravitational evolution and galaxy formation. In this paper we study the…

天体物理学 · 物理学 2016-08-30 Rupert A. C. Croft , Enrique Gaztanaga

We introduce the MOdelling Star cluster population Assembly In Cosmological Simulations within EAGLE (E-MOSAICS) project. E-MOSAICS incorporates models describing the formation, evolution and disruption of star clusters into the EAGLE…

星系天体物理 · 物理学 2018-02-28 Joel Pfeffer , J. M. Diederik Kruijssen , Robert A. Crain , Nate Bastian

The standard theory of cosmic structure formation posits that the present-day rich structure of the Universe developed through gravitational amplification of tiny matter density fluctuations generated in its very early history. Recent…

宇宙学与河外天体物理 · 物理学 2009-06-25 Naoki Yoshida

The formation and evolution of galaxies is one of the great outstanding problems of astrophysics. Within the broad context of hierachical structure formation, we have only a crude picture of how galaxies like our own came into existence. A…

天体物理学 · 物理学 2011-03-10 Ken Freeman , Joss Bland-Hawthorn

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…

天体物理学 · 物理学 2007-05-23 Abraham Loeb

Modeling galaxy formation in a cosmological context presents one of the greatest challenges in astrophysics today, due to the vast range of scales and numerous physical processes involved. Here we review the current status of models that…

星系天体物理 · 物理学 2015-09-23 Rachel S. Somerville , Romeel Davé