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Even today in our Galaxy, stars form from gas cores in a variety of environments, which may affect the properties of resulting star and planetary systems. Here we study the role of pressure, parameterized via ambient clump mass surface…

Astrophysics of Galaxies · Physics 2015-06-23 Yichen Zhang , Jonathan C. Tan

We present PrestaLine: Gorynych, a comprehensive numerical tool designed to model the dynamical, chemical, and spectral evolution of collapsing molecular cores from the prestellar phase to protostellar accretion. The code integrates three…

Astrophysics of Galaxies · Physics 2026-02-16 Olga Kochina , Dmitri Wiebe , Yaroslav Pavlyuchenkov , Maria S. Kirsanova

The Central Molecular Zone (CMZ) is the most extreme star-forming environment in the Milky Way in terms of gas pressures, densities, temperatures, and dynamics. It acts as a critical test bed for developing star formation theories…

Astrophysics of Galaxies · Physics 2019-12-06 Maya A. Petkova , J. M. Diederik Kruijssen

With the aim of clarifying the nature of the supernova events from stars having initial (at the main sequence) masses larger than $\sim 8$-$10\,M_{\odot}$, we have developed a specifically tailored radiation hydrodynamics Lagrangian code,…

Solar and Stellar Astrophysics · Physics 2011-09-09 M. L. Pumo , L. Zampieri

(Abridged) The question of how most stars in the Universe form remains open. While star formation predominantly occurs in young massive clusters, the current framework focuses on isolated star formation. One way to access the bulk of…

Astrophysics of Galaxies · Physics 2022-11-23 K. M. Dutkowska , L. E. Kristensen

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…

Astrophysics · Physics 2007-05-23 M. Molla , A. I. Diaz , F. Ferrini

Dust plays a key role in the evolution of the ISM and its correct modelling in numerical simulations is therefore fundamental. We present a new and self-consistent model that treats grain thermal coupling with the gas, radiation balance,…

Astrophysics of Galaxies · Physics 2017-01-25 T. Grassi , S. Bovino , T. Haugboelle , D. R. G. Schleicher

The SILCC project (SImulating the Life-Cycle of molecular Clouds) aims at a more self-consistent understanding of the interstellar medium (ISM) on small scales and its link to galaxy evolution. We simulate the evolution of the multi-phase…

Astrophysics of Galaxies · Physics 2015-09-30 S. K. Walch , P. Girichidis , T. Naab , A. Gatto , S. C. O. Glover , R. Wünsch , R. S Klessen , P. C. Clark , T. Peters , C. Baczynski

We review recent advances in the analytical and numerical modeling of the star formation rate in molecular clouds and discuss the available observational constraints. We focus on molecular clouds as the fundamental star formation sites,…

We present 3D "zoom-in" simulations of the formation of two molecular clouds out of the galactic interstellar medium. We model the clouds - identified from the SILCC simulations - with a resolution of up to 0.06 pc using adaptive mesh…

Astrophysics of Galaxies · Physics 2017-10-18 D. Seifried , S. Walch , P. Girichidis , T. Naab , R. Wünsch , R. S. Klessen , S. C. O. Glover , T. Peters , P. Clark

As part of a series of papers aimed at understanding the evolution of the Milky Way's Central Molecular Zone (CMZ), we present hydrodynamical simulations of turbulent molecular clouds orbiting in an accurate model of the gravitational…

Astrophysics of Galaxies · Physics 2019-04-10 James E. Dale , J. M. Diederik Kruijssen , S. N. Longmore

Aims. We study the effect of large scale dynamics on the molecular composition of the dense interstellar medium during the transition between diffuse to dense clouds. Methods. We followed the formation of dense clouds (on sub-parsec scales)…

Astrophysics of Galaxies · Physics 2018-04-11 M. Ruaud , V. Wakelam , P. Gratier , I. A. Bonnell

We investigate the time evolution of dust properties, molecular hydrogen (H_2) contents, and star formation histories in galaxies by using our original chemodynamical simulations. The simulations include the formation of dust in the stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Kenji Bekki

[Abridged] Planets and their atmospheres are built from gas and solid material in protoplanetary disks. This solid material grows from smaller, micron-sized grains to larger sizes in the disks, during the process of planet formation. Our…

Earth and Planetary Astrophysics · Physics 2022-11-30 Christian Eistrup , L. Ilsedore Cleeves , Sebastiaan Krijt

Major progress has been made over the last few years in understanding hydrodynamical processes on cosmological scales, in particular how galaxies get their baryons. There is increasing recognition that a large part of the baryons accrete…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Frederic Bournaud

We report the results of our three-dimensional radiation hydrodynamics simulation of collapsing unmagnetized molecular cloud cores. We investigate the formation and evolution of the circumstellar disk and the clumps formed by disk…

Solar and Stellar Astrophysics · Physics 2015-06-16 Yusuke Tsukamoto , Masahiro N. Machida , Shuichiro Inutsuka

We investigate the formation of protostellar clusters during the collapse of dense molecular cloud cores with a focus on the evolution of potential and kinetic energy, the degree of substructure, and the early phase of mass segregation. Our…

Solar and Stellar Astrophysics · Physics 2015-06-03 Philipp Girichidis , Christoph Federrath , Richard Allison , Robi Banerjee , Ralf Klessen

In this lecture I will introduce the concept of galactic chemical evolution, namely the study of how and where the chemical elements formed and how they were distributed in the stars and gas in galaxies. The main ingredients to build models…

Astrophysics of Galaxies · Physics 2016-05-04 Francesca Matteucci

We present a new class of hydrodynamical models for the formation of bulges (either massive elliptical galaxies or classical bulges in spirals) in which we implement detailed prescriptions for the chemical evolution of H, He, O and Fe. Our…

Astrophysics · Physics 2009-11-13 A. Pipino , F. Matteucci , A. D'Ercole

We present 3-D hydrodynamical models of the evolution of superbubbles powered by stellar winds and supernovae from young coeval massive star clusters within low metallicity ($Z = 0.02$Z$_{\odot}$), clumpy molecular clouds. We explore the…

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