Results 51 to 60 of about 216,275 (179)
Breathing FIRE: How Stellar Feedback Drives Radial Migration, Rapid Size Fluctuations, and Population Gradients in Low-Mass Galaxies [PDF]
, 2016 We examine the effects of stellar feedback and bursty star formation on low-mass galaxies ($M_{\rm star}=2\times10^6-5\times10^{10}{\rm M_{\odot}}$) using the FIRE (Feedback in Realistic Environments) simulations.
Chan, T. K. +6 more
core +3 more sources
Feedback and the formation of dwarf galaxy stellar haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Stellar population studies show that low mass galaxies in all environments exhibit stellar halos that are older and more spherically distributed than the main body of the galaxy. In some cases, there is a significant intermediate age component that extends beyond the young disk. We examine a suite of Smoothed Particle Hydrodynamic (SPH) simulations and
J. Wadsley +6 more
openaire +3 more sources
M-σ relations across cosmic time
The Open Journal of Astrophysics, 2023 Feedback from active galactic nuclei (AGN) has long been invoked to explain the correlation between black hole mass and stellar velocity dispersion (M-σ) discovered in low redshift galaxies. We describe the time evolution of AGN in the M-σ plane based on
David Garofalo +5 more
doaj +1 more source
Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation [PDF]
MNRAS, 445, 581 (2014), 2013 We present a series of high-resolution cosmological simulations of galaxy formation to z=0, spanning halo masses ~10^8-10^13 M_sun, and stellar masses ~10^4-10^11. Our simulations include fully explicit treatment of both the multi-phase ISM (molecular through hot) and stellar feedback.
arxiv +1 more source
Shaken or Stirred: The Diffuse Interstellar Medium with Exceptionally High SiO Abundance
The Astrophysical Journal, 2023 Interstellar shocks, a key element of stellar feedback processes, shape the structure of the interstellar medium (ISM) and are essential for the chemistry, thermodynamics, and kinematics of interstellar gas.
Daniel R. Rybarczyk +2 more
doaj +1 more source
Black Holes on FIRE: Stellar Feedback Limits Early Feeding of Galactic Nuclei [PDF]
, 2017 We introduce massive black holes (BHs) in the Feedback In Realistic Environments project and perform high-resolution cosmological hydrodynamic simulations of quasar-mass halos ($M_{\rm halo}(z=2) \approx 10^{12.5}\,\rm{M}_{\odot}$) down to $z=1$.
Anglés-Alcázar, Daniel +7 more
core +3 more sources
Star Formation Variability as a Probe for the Baryon Cycle within Galaxies
The Astrophysical Journal, 2023 We investigate the connection between the regulation of star formation and the cycling of baryons both within and in and out of galaxies. We use idealized numerical simulations of Milky Way–mass galaxies, in which we vary the galaxy morphology and ...
Eun-jin Shin +4 more
doaj +1 more source
Stellar feedback in galaxies and the origin of galaxy-scale winds [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 16 pages, 11 figures, accepted to MNRAS (matches accepted version).
Hopkins, Philip F. +2 more
openaire +6 more sources
The Astrophysical Journal Letters, 2023 We present a high-resolution view of bubbles within the Phantom Galaxy (NGC 628), a nearby (∼10 Mpc), star-forming (∼2 M _⊙ yr ^−1 ), face-on ( i ∼ 9°) grand-design spiral galaxy.
Ashley. T. Barnes +53 more
doaj +1 more source
, 2017 We report the serendipitous discovery of ongoing stellar feedback in the star-bursting nuclear ring of a nearby spiral galaxy, as part of the TIMER survey with MUSE. Combining MUSE and ALMA data we show bubbles of ionised gas expanding from the ring and shocking with the cold ISM.
Dimitri A. Gadotti, Timer Team
openaire +2 more sources