Results 21 to 30 of about 3,312 (299)
Stellar feedback in a clumpy galaxy at z ∼ 3.4 [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Giant star-forming regions (clumps) are widespread features of galaxies at z ≈ 1−4. Theory predicts that they can play a crucial role in galaxy evolution, if they survive to stellar feedback for >50 Myr. Numerical simulations show that clumps’ survival depends on the stellar feedback recipes that are adopted.
E Iani +20 more
openaire +8 more sources
The Astronomical Journal, 2023 We explore the role of galactic feedback on the low-redshift Ly α (Ly α ) forest ( z ≲ 2) statistics and its potential to alter the thermal state of the intergalactic medium. Using the Cosmology and Astrophysics with Machine Learning Simulations (CAMELS)
Megan Taylor Tillman +11 more
doaj +1 more source
Stellar feedback efficiencies: supernovae versus stellar winds [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Stellar winds and supernova (SN) explosions of massive stars ('stellar feedback') create bubbles in the interstellar medium (ISM) and insert newly produced heavy elements and kinetic energy into their surroundings, possibly driving turbulence. Most of this energy is thermalized and immediately removed from the ISM by radiative cooling.
Fierlinger, Katharina M. +7 more
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Stellar Multiplicity in an RMHD Simulation with Stellar Feedback
Research Notes of the AAS, 2021 Abstract Unlike the Sun, most observed stars are part of a multiple star system, but the formation of such systems is still not well understood. To study this problem, we utilize a run from the STARFORGE simulation suite that simulates the evolution of star-forming Giant Molecular Clouds (GMCs).
Aman N. Raju +2 more
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AN EXPLORATION OF THE STATISTICAL SIGNATURES OF STELLAR FEEDBACK [PDF]
The Astrophysical Journal, 2016 ABSTRACT All molecular clouds are observed to be turbulent, but the origin, means of sustenance, and evolution of the turbulence remain debated. One possibility is that stellar feedback injects enough energy into the cloud to drive observed motions on parsec scales.
Ryan D. Boyden +3 more
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Invertible Neural Networks in Astrophysics [PDF]
EPJ Web of Conferences, 2022 Modern machine learning techniques have become indispensable in many fields of astronomy and astrophysics. Here we introduce a specific class of methods, invertible neural networks, and discuss two specific applications, the prediction of stellar ...
Klessen Ralf S.
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, 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
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Stellar Feedback in Dwarf Galaxy Formation [PDF]
Science, 2008 Dwarf galaxies pose substantial challenges for cosmological models. In particular, current models predict a dark-matter density that is divergent at the center, which is in sharp contrast with observations that indicate a core of roughly constant density.
Mashchenko, Sergey +2 more
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THE ROLE OF STELLAR FEEDBACK IN THE FORMATION OF GALAXIES [PDF]
The Astrophysical Journal, 2009 24 pages, 16 figures, accepted for publication at ApJ.
Ceverino, Daniel, Klypin, Anatoly
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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 $Σ_{max} \sim 3 \times 10^5\,{\rm M_\odot\,pc^{-2}}$ is observed across all classes of dense stellar systems (e.g. star clusters, galactic nuclei, etc.), spanning $\sim 8$ orders of magnitude in mass. It has been proposed that this characteristic scale is set by some dynamical feedback mechanism preventing collapse ...
Michael Y Grudić +3 more
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