Results 31 to 40 of about 3,407 (289)

Galactic Winds in Low-Mass Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2018
AbstractMass-loss via stellar-feedback driven outflows is predicted to play a critical role in the baryon cycle of low-mass galaxies. However, observational constraints on warm winds are limited as outflows are transient, intrinsically low-surface brightness events and, thus, difficult to detect.
Kristen. B. W. McQuinn   +2 more
openaire   +2 more sources

Cosmic ray driven galactic winds

open access: yes, 2020
International audienceGalactic winds constitute a primary feedback process in the ecology and evolution of galaxies. They are ubiquitously observed and exhibit a rich phenomenology, whose origin is actively investigated both theoretically and ...
Recchia, Sarah
core   +1 more source

Magnetic Fields Around Galactic Discs

open access: yesGalaxies, 2019
Magnetic fields in the discs of spiral galaxies are quite well understood, although, of course, many details still require investigation and future observations with new generations of radio telescopes will be valuable here.
David Moss, Dmitry Sokoloff
doaj   +1 more source

Discovery of a Spatially and Kinematically Resolved 55 kpc Scale Superbubble Inflated by an Intermediate-redshift Non-BAL Quasar

open access: yesThe Astrophysical Journal Letters, 2023
We report on the discovery of a rare case of spatially and kinematically resolved galactic-scale outflow at intermediate redshift based on VLT/MUSE optical integral field spectroscopic observation of the quasar HE 0238–1904.
Qinyuan Zhao, Junfeng Wang
doaj   +1 more source

Reacceleration of Galactic Cosmic Rays beyond the Knee at the Termination Shock of a Cosmic-Ray-driven Galactic Wind

open access: yesThe Astrophysical Journal, 2023
The origin of cosmic rays (CRs) above the knee in the spectrum is an unsolved problem. We present a wind model in which interstellar gas flows along a nonrotating, expanding flux tube with a changing speed and cross-sectional area.
Payel Mukhopadhyay   +4 more
doaj   +1 more source

WARM MOLECULAR HYDROGEN IN THE GALACTIC WIND OF M82 [PDF]

open access: yesThe Astrophysical Journal, 2009
Accepted for publication in the Astrophysical Journal Letters.
Veilleux, S., Rupke, D., Swaters, R.
openaire   +3 more sources

Modelling accretion disk winds in quasars

open access: yes, 2014
Outflows are ubiquitous in active galactic nuclei (AGN). They can take the form of either dramatic radio jets, which extend vast distances into the inter-galactic medium, or of much smaller scale winds - whose existence can be inferred only indirectly ...
Nick Higginbottom   +1 more
core   +1 more source

SIMULATIONS OF DISK GALAXIES WITH COSMIC RAY DRIVEN GALACTIC WINDS [PDF]

open access: yes, 2020
We present results from high-resolution hydrodynamic simulations of isolated Small Magellanic Cloud (SMC)-and Milky-Way-sized galaxies that include a model for feedback from galactic cosmic rays (CRs).
Agertz, O   +7 more
core   +1 more source

A Global Inventory of Feedback

open access: yesGalaxies, 2023
Feedback from both supermassive black holes and massive stars plays a fundamental role in the evolution of galaxies and the inter-galactic medium. In this paper, we use available data to estimate the total amount of kinetic energy and momentum created ...
Timothy M. Heckman, Philip N. Best
doaj   +1 more source

Simulating supernova feedback in galaxy disks [PDF]

open access: yes, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD   +1 more
core  

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