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We present the results of a series of numerical simulations of compressible, self-gravitating hydrodynamic turbulence of cluster-forming clumps in molecular clouds. We examine the role that turbulence has in the formation of gravitationally…

Astrophysics · Physics 2009-11-10 David A. Tilley , Ralph E. Pudritz

We present numerical simulations to describe the nucleosynthesis and evolution of pre-Galactic clouds in a model which is motivated by cold dark matter simulations of hierarchical galaxy formation. We adopt a SN-induced star-formation…

Astrophysics · Physics 2007-05-23 L. Saleh , T. C. Beers , G. J. Mathews

We present STARFORGE (STAR FORmation in Gaseous Environments): a new numerical framework for 3D radiation MHD simulations of star formation that simultaneously follow the formation, accretion, evolution, and dynamics of individual stars in…

Instrumentation and Methods for Astrophysics · Physics 2024-02-29 Michael Y. Grudić , Dávid Guszejnov , Philip F. Hopkins , Stella S. R. Offner , Claude-André Faucher-Giguère

Super star clusters (SSCs), likely the progenitors of globular clusters, are one of the most extreme forms of star formation. Understanding how SSCs form is an observational challenge. Theoretical studies establish that, to form such…

Astrophysics of Galaxies · Physics 2017-04-19 Cinthya Herrera , Francois Boulanger

A model of supernovae feedback during disc galaxy formation is developed. The model incorporates infall of cooling gas from a halo and outflow of hot gas from a multiphase interstellar medium and a self-regulated model for star formation.…

Astrophysics · Physics 2009-07-09 G. Efstathiou

We investigate the evolution of the galaxy Star Formation Rate Function (SFRF) and Cosmic Star Formation Rate Density (CSFRD) of $z\sim 0-8 $ galaxies in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulations. In…

Astrophysics of Galaxies · Physics 2017-09-20 A. Katsianis , G. Blanc , C. P. Lagos , N. Tejos , R. G. Bower , A. Alavi , V. Gonzalez , T. Theuns , M. Schaller , S. Lopez

The star formation in molecular clouds is inefficient. The ionizing EUV radiation ($h \nu \geq 13.6$ eV) from young clusters has been considered as a primary feedback effect to limit the star formation efficiency (SFE). We here focus on…

Astrophysics of Galaxies · Physics 2020-09-15 Mutsuko Inoguchi , Takashi Hosokawa , Shin Mineshige , Jeong-Gyu Kim

Direct comparisons between galaxy simulations and observations that both reach scales < 100 pc are strong tools to investigate the cloud-scale physics of star formation and feedback in nearby galaxies. Here we carry out such a comparison…

Astrophysics of Galaxies · Physics 2019-05-27 Yusuke Fujimoto , Mélanie Chevance , Daniel T. Haydon , Mark R. Krumholz , J. M. Diederik Kruijssen

Context. The evolution of massive stars is strongly influenced by internal mixing processes such as semiconvection, convective core overshooting, and rotationally induced mixing. None of these is currently well constrained. Aims. We…

Solar and Stellar Astrophysics · Physics 2019-05-29 Abel Schootemeijer , Norbert Langer , Nathan J. Grin , Chen Wang

We present simulations of the multi-phase interstellar medium (ISM) at solar neighbourhood conditions including thermal and non-thermal ISM processes, star cluster formation, and feedback from massive stars: stellar winds, hydrogen ionising…

We present an idealized, spherical model of the evolution of a magnetized molecular cloud due to ambipolar diffusion. This model allows us to follow the quasi-static evolution of the cloud's core prior to collapse and the subsequent…

Astrophysics · Physics 2009-10-30 P. N. Safier , C. F. McKee , S. W. Stahler

In previous contributions, we have presented an analytical model describing the evolution of molecular clouds (MCs) undergoing hierarchical gravitational contraction. The cloud's evolution is characterized by an initial increase in its…

Astrophysics of Galaxies · Physics 2019-07-18 Enrique Vázquez-Semadeni , Manuel Zamora-Avilés , Roberto Galván-Madrid , Jan Forbrich

We have studied the long-term evolution of star clusters of the solar neighborhood, starting from their birth in gaseous clumps until their complete dissolution in the Galactic tidal field. We have combined the "local-density-driven cluster…

Astrophysics of Galaxies · Physics 2018-08-29 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Andreas Just , Peter Berczik

We derive a metallicity dependent relation between the surface density of the star formation rate (Sigma_{SFR}) and the gas surface density (Sigma_{g}) in a feedback regulated model of star formation in galactic disks. In this model, star…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Sami Dib

We study the role of feedback from supernovae and black holes in the evolution of the star formation rate function (SFRF) of z~4-7 galaxies. We use a new set of cosmological hydrodynamic simulations, ANGUS (AustraliaN GADGET-3 early…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Edoardo Tescari , Antonios Katsianis , Stuart Wyithe , Klaus Dolag , Luca Tornatore , Paramita Barai , Matteo Viel , Stefano Borgani

We present a suite of three-dimensional, high-resolution hydrodynamic simulations that follow the evolution of a massive (10^7 M_sun) pressure confined, star-forming neutral gas cloud moving through a hot intra-cluster medium (ICM). The…

Astrophysics of Galaxies · Physics 2020-11-18 Francesco Calura , Michele Bellazzini , Annibale D'Ercole

The star-forming ability of a molecular cloud depends on the fraction of gas it can cycle into the dense-phase. Consequently, one of the crucial questions in reconciling star-formation in clouds is to understand the factors that control…

Astrophysics of Galaxies · Physics 2017-12-20 S. Anathpindika , A. Burkert , R. Kuiper

The 30 Doradus Nebula in the Large Magellanic Cloud (LMC) contains the massive starburst cluster NGC 2070 with a massive and probably younger stellar sub clump at its center: R136. It is not clear how such a massive inner cluster could form…

Astrophysics of Galaxies · Physics 2017-11-29 Daniel Rahner , Eric W. Pellegrini , Simon C. O. Glover , Ralf S. Klessen

Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies, and a better model of SN feedback is still needed in galaxy formation simulations. In the first part of this paper, using an Eulerian…

Astrophysics of Galaxies · Physics 2022-08-31 Yuri Oku , Kengo Tomida , Kentaro Nagamine , Ikkoh Shimizu , Renyue Cen

To investigate how molecular clouds react to different environmental conditions at a galactic scale, we present a catalogue of giant molecular clouds resolved down to masses of $\sim 10$~M$_{\odot}$ from a simulation of the entire disc of…