The maximum stellar surface density due to the failure of stellar feedback [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 A maximum stellar surface density Σ_(max) ∼ 3×10^5M⊙ pc^(−2) is observed across all classes of dense stellar systems (e.g. star clusters, galactic nuclei, etc.), spanning ∼8 orders of magnitude in mass. It has been proposed that this characteristic scale
Michael Y. Grudić +3 more
semanticscholar +5 more sources
Theoretical Re-evaluations of Scaling Relations between SMBHs and Their Host Galaxies–2. Importance of AGN Feedback Suggested by Stellar Age–Velocity Dispersion Relation [PDF]
Frontiers in Astronomy and Space Sciences, 2017 We present the galactic stellar age—velocity dispersion relation obtained from a semi-analytic model of galaxy formation. We divide galaxies into two populations: galaxies which have over-massive/under-massive black holes (BHs) against the best-fitting ...
Hikari Shirakata +3 more
doaj +2 more sources
The failure of stellar feedback, magnetic fields, conduction, and morphological quenching in maintaining red galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 The quenching "maintenance'" and related "cooling flow" problems are important in galaxies from Milky Way mass through clusters. We investigate this in halos with masses $\sim 10^{12}-10^{14}\,{\rm M}_{\odot}$, using non-cosmological high-resolution ...
Chan, T. K. +8 more
core +4 more sources
The universal acceleration scale from stellar feedback [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2020 It has been established for decades that rotation curves deviate from the Newtonian gravity expectation given baryons alone below a characteristic acceleration scale $g_{\dagger }\sim 10^{-8}\, \rm {cm\, s^{-2}}$, a scale promoted to a new fundamental ...
Michael Y. Grudić +3 more
semanticscholar +3 more sources
Stellar feedback by radiation pressure and photoionization [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 The relative impact of radiation pressure and photoionization feedback from young stars on surrounding gas is studied with hydrodynamic radiative transfer (RT) simulations.
Marinacci, Federico +3 more
core +4 more sources
Shooting for the Stars: Jet-mode Feedback and AGN Jet Deceleration from Stellar Mass Loading
The Astrophysical JournalActive Galactic Nucleus (AGN) jets are thought to be vital ingredients in galaxy evolution through the action of kinetic feedback; however, how narrow, relativistic outflows couple to galaxies remains an open question.
Talia M. O’Shea +4 more
doaj +2 more sources
Radiative stellar feedback in galaxy formation: Methods and physics [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Radiative feedback (RFB) from stars plays a key role in galaxies, but remains poorly understood. We explore this using high-resolution, multifrequency radiation-hydrodynamics (RHD) simulations from the Feedback In Realistic Environments (FIRE) project.
P. Hopkins +7 more
semanticscholar +6 more sources
Stellar Population and Energy Feedback in the Supergiant Shell LMC 1 [PDF]
The Astronomical JournalSupergiant shells (SGSs) are the largest interstellar structures in galaxies and inject hot enriched gas into galactic halos. We have studied SGS LMC 1 to determine quantitatively whether stellar energy feedback is adequate to power the formation of an ...
Guan-Hong Li +6 more
doaj +2 more sources
Galaxies on FIRE (Feedback In Realistic Environments): stellar feedback explains cosmologically inefficient star formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We present a series of high-resolution cosmological simulations of galaxy formation to z = 0, spanning halo masses ∼10^8–10^(13) M⊙, and stellar masses ∼10^4–10^(11) M⊙.
P. Hopkins +6 more
semanticscholar +6 more sources
What Is the Role of Stellar Radiative Feedback in Setting the Stellar Mass Spectrum? [PDF]
The Astrophysical Journal, 2020 Abstract In spite of decades of theoretical efforts, the physical origin of the stellar initial mass function (IMF) is still debated. Particularly crucial is the question of what sets the peak of the distribution. To investigate this issue, we perform high-resolution numerical simulations with radiative feedback exploring, in particular,
Patrick Hennebelle +3 more
openalex +5 more sources