Results 31 to 40 of about 2,636,463 (178)

AN EXPLORATION OF THE STATISTICAL SIGNATURES OF STELLAR FEEDBACK [PDF]

open access: yesThe 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
openaire   +2 more sources

Stellar Feedback in Dwarf Galaxy Formation [PDF]

open access: yesScience, 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
openaire   +3 more sources

THE ROLE OF STELLAR FEEDBACK IN THE FORMATION OF GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2009
24 pages, 16 figures, accepted for publication at ApJ.
Ceverino, Daniel, Klypin, Anatoly
openaire   +2 more sources

Efficient early stellar feedback can suppress galactic outflows by reducing supernova clustering [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We present a novel set of stellar feedback models, implemented in the moving-mesh code arepo, designed for galaxy formation simulations with near-parsec (or better) resolution. These include explicit sampling of stars from the IMF, allowing feedback to
Matthew C. Smith   +6 more
semanticscholar   +1 more source

Invertible Neural Networks in Astrophysics [PDF]

open access: yesEPJ 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.
doaj   +1 more source

Using teacher-supported peer feedback to develop student feedback literacy in L2 writing: An instructional model [PDF]

open access: yes, 2023
To realize the potential of feedback, students need to possess feedback literacy. Frequently implemented in writing classrooms, peer feedback activities carry unique potential for developing student feedback literacy. This paper proposes an instructional
Maggie Ma
core   +1 more source

The Cusp–Core Problem in Gas-Poor Dwarf Spheroidal Galaxies

open access: yesGalaxies, 2021
This review deals with the inconsistency of inner dark matter density profiles in dwarf galaxies, known as the cusp–core problem. In particular, we aim to focus on gas-poor dwarf galaxies.
Pierre Boldrini
doaj   +1 more source

simba: the average properties of the circumgalactic medium of 2 ≤ z ≤ 3 quasars are determined primarily by stellar feedback [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We use the simba cosmological hydrodynamic simulation suite to explore the impact of feedback on the circumgalactic medium (CGM) and intergalactic medium (IGM) around 2 ≤ z ≤ 3 quasars.
D. Sorini, R. Davé, D. Anglés-Alcázar
semanticscholar   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

open access: yes, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L.   +73 more
core   +1 more source

Fictions, Conditionals, and Stellar Astrophysics [PDF]

open access: yes, 2013
This article argues in favour of an inferential role for fictions in scientific modelling. The argument proceeds by means of a detailed case study, namely models of the internal structure of stars in stellar astrophysics.
Suárez, Mauricio, Mauricio Suárez
core   +1 more source

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