English
Related papers

Related papers: Galactic Outflows and Evolution of the Interstella…

200 papers

Recent observations have revealed massive galactic molecular outflows that may have physical conditions (high gas densities) required to form stars. Indeed, several recent models predict that such massive galactic outflows may ignite star…

We present simulations of the magnetized interstellar medium (ISM) in models of massive star forming (40 Msun / yr) disk galaxies with high gas surface densities (~100 Msun / pc^2) similar to observed star forming high-redshift disks. We…

Astrophysics of Galaxies · Physics 2015-06-17 Michal Hanasz , Harald Lesch , Thorsten Naab , Artur Gawryszczak , Kacper Kowalik , Dominik Wóltański

Using a high resolution simulation of an isolated dwarf galaxy, accounting for multi-channel stellar feedback and chemical evolution on a star-by-star basis, we investigate how each of 15 metal species are distributed within our multi-phase…

Astrophysics of Galaxies · Physics 2018-12-26 Andrew Emerick , Greg L. Bryan , Mordecai-Mark Mac Low , Benoit Côté , Kathryn V. Johnston , Brian W. O'Shea

Interstellar dust is a significant component of matter in the galaxies. The dust owns its origin and reprocessing in a wide range of astrophysical environments. In order to understand the origin and evolution of the distinct types of…

Solar and Stellar Astrophysics · Physics 2020-04-24 Anuj Gupta , Sandeep Sahijpal

Models of the chemical evolution of the interstellar medium, galaxies, and the Universe rely on our understanding of the amounts and chemical composition of the material returned by stars and supernovae. Stellar yields are obtained from…

We combine an analytic model for anisotropic outflows and galaxy formation with numerical simulations of large-scale structure and halo formation to study the impact of galactic outflows on the evolution of the IGM. We have simulated the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Steeve Pinsonneault , Hugo Martel , Matthew M. Pieri

The circumgalactic medium (CGM) of galaxies serves as a record of the influences of outflows and accretion that drive the evolution of galaxies. Feedback from star formation drives outflows that carry mass and metals away from galaxies to…

We revisit the launch of the galactic outflow in M82 using hydrodynamic simulations. Employing a sink-particle module, we self-consistently resolve star formation and feedback, avoiding reliance on simplified models. We investigate the…

Astrophysics of Galaxies · Physics 2026-01-21 Tian-Rui Wang , Weishan Zhu , Xue-Fu Li , Wen-Sheng Hong , Long-Long Feng

The interplay between the ISM and the massive stars formed in clusters and, more generally, in recent events of star formation is reviewed via the global effects each has on the other. The pre-existing environment affects the properties of…

Astrophysics · Physics 2007-05-23 D. Calzetti , C. A. Tremonti , T. M. Heckman , C. Leitherer

We present an empirical chemical evolution model that explains the distribution of metals in the interstellar medium (ISM) and the circumgalactic medium (CGM) of galaxies based on the UniverseMachine and NeutralUniverseMachine models in the…

Two of the dominant channels for galaxy mass assembly are cold flows (cold gas supplied via the filaments of the cosmic web) and mergers. How these processes combine in a cosmological setting, at both low and high redshift, to produce the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Leila C. Powell , Frederic Bournaud , Damien Chapon , Julien Devriendt , Adrianne Slyz , Romain Teyssier

The high metallicity of the intra-cluster medium (ICM) is generally interpreted on the base of the galactic wind scenario for elliptical galaxies. In this framework, we develop a toy-model to follow the chemical evolution of the ICM,…

Astrophysics · Physics 2007-05-23 L. Portinari , A. Moretti , C. Chiosi

The under-abundance of very massive galaxies in the universe is frequently attributed to the effect of galactic winds. Although ionized galactic winds are readily observable most of the expelled mass is likely in cooler atomic and molecular…

Most galaxy evolution simulations as well as a variety of observational methods assume a linear scaling between the (galaxy-averaged) dust-to-gas ratio D and metallicity Z of the interstellar medium (ISM). Indeed, nearby galaxies with solar…

Astrophysics of Galaxies · Physics 2015-06-23 Robert Feldmann

A chemical evolution model following the evolution of the abundances of H, He, C, N, O and Fe for dwarf irregular and blue compact galaxies is presented. This model takes into account detailed nucleosynthesis and computes in detail the…

Astrophysics · Physics 2007-05-23 F. Bradamante , F. Matteucci , A. D'Ercole

We present a semi-analytic treatment of galactic winds within high resolution, large scale cosmological N-body simulations of a LCDM Universe. The evolution of winds is investigated by following the expansion of supernova driven…

Astrophysics · Physics 2009-09-25 Serena Bertone , Felix Stoehr , Simon D. M. White

We present the results of a variety of simulations concerning the evolution of multiphase (inhomogeneous) hot interstellar medium (ISM) in elliptical galaxies. We assume the gases ejected from stars do not mix globally with the…

Astrophysics · Physics 2009-10-30 Yutaka Fujita , Junji Fukumoto , Katsuya Okoshi

We study the impact of stellar winds and supernovae on the multi-phase interstellar medium using three-dimensional hydrodynamical simulations carried out with FLASH. The selected galactic disc region has a size of (500 pc)$^2$ x $\pm$ 5 kpc…

Astrophysics of Galaxies · Physics 2017-01-25 A. Gatto , S. Walch , T. Naab , P. Girichidis , R. Wünsch , S. C. O. Glover , R. S. Klessen , P. C. Clark , T. Peters , D. Derigs , C. Baczynski , J. Puls

We present semi-analytic models of galactic outflows, constrained by available observations on high redshift star formation and reionization. Galactic outflows are modeled in a manner akin to models of stellar wind blown bubbles. Large…

Astrophysics · Physics 2009-11-13 Saumyadip Samui , Kandaswamy Subramanian , Raghunathan Srianand

Feedback from massive stars is believed to play a critical role in driving galactic super-winds that enrich the IGM and shape the galaxy mass function and mass-metallicity relation. In previous papers, we introduced new numerical methods…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray