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Related papers: The impact of pre-supernova feedback and its depen…

200 papers

We carry out several isolated galaxy evolution simulations in a fixed dark matter halo gravitational potential using the new version of our N-body/Smoothed Particle Hydrodynamics (SPH) code GCD+. The new code allows us to more accurately…

Astrophysics of Galaxies · Physics 2015-06-03 Awat Rahimi , Daisuke Kawata

Radiative feedback is among the most important consequences of clustered star formation inside molecular clouds. At the onset of star formation, radiation from massive stars heats the surrounding gas, which suppresses the formation of many…

Astrophysics of Galaxies · Physics 2015-06-03 Mikhail Klassen , Ralph E. Pudritz , Thomas Peters

We present three-dimensional radiation-hydrodynamical simulations of the impact of stellar winds, photoelectric heating, photodissociating and photoionising radiation, and supernovae on the chemical composition and star formation in a…

Stellar feedback in the form of radiation pressure and magnetically-driven collimated outflows may limit the maximum mass that a star can achieve and affect the star-formation efficiency of massive pre-stellar cores. Here we present a…

Solar and Stellar Astrophysics · Physics 2020-07-29 Anna L. Rosen , Mark R. Krumholz

We present results of numerical simulations carried out with a 2D radiation hydrodynamics code in order to study the impact of massive stars on their surrounding interstellar medium. This first paper deals with the evolution of the…

Astrophysics · Physics 2009-11-10 Tim Freyer , Gerhard Hensler , Harold W. Yorke

Using the Spitzer and WISE images, we discovered 42 mid-IR luminous dusty supernovae with local integral-field spectroscopy data. The observed mid-IR emission indicates the presence of newly formed dust, or pre-existing dust heated by the…

High Energy Astrophysical Phenomena · Physics 2026-03-02 Lin Xiao , Zeyue Peng , Lluis Galbany , Tamas Szalai , Ori D. Fox , Lei Hu , Maokai Hu , Thallis Pessi , Yi Yang , Takashi J. Moriya , Zhanwen Han , Xiaofeng Wang , Shengyu Yan

Molecular cloud structure is regulated by stellar feedback in various forms. Two of the most important feedback processes are UV photoionisation and supernovae from massive stars. However, the precise response of the cloud to these…

Astrophysics of Galaxies · Physics 2016-09-21 Sam Geen , Patrick Hennebelle , Pascal Tremblin , Joakim Rosdahl

We use a volume-, magnitude-limited sample of nearby galaxies to investigate the effect of the environment on the HI scaling relations. We confirm that the HI-to-stellar mass ratio anti correlates with stellar mass, stellar mass surface…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 L. Cortese , B. Catinella , S. Boissier , A. Boselli , S. Heinis

We use magnetohydrodynamical simulations of converging warm neutral medium flows to analyse the formation and global evolution of magnetised and turbulent molecular clouds subject to supernova feedback from massive stars. We show that…

Astrophysics of Galaxies · Physics 2016-04-27 Bastian Körtgen , Daniel Seifried , Robi Banerjee , Enrique Vázquez-Semadeni , Manuel Zamora-Avilés

The dominant feedback mechanism in low mass haloes is usually assumed to take the form of massive stars exploding as supernovae (SNe). We perform very high resolution cosmological zoom-in simulations of five dwarf galaxies to z = 4 with our…

Astrophysics of Galaxies · Physics 2019-04-03 Matthew C. Smith , Debora Sijacki , Sijing Shen

Massive stars produce copious quantities of ultraviolet radiation beyond the Lyman limit, photoionizing the interstellar medium (ISM) and producing H II regions. As strong sources of recombination- and forbidden-line emission, infrared…

Astrophysics of Galaxies · Physics 2012-02-06 Matthew S. Povich

We present an SPH parameter study of the dynamical effect of photoionization from O--type stars on star--forming clouds of a range of masses and sizes during the time window before supernovae explode. Our model clouds all have the same…

Astrophysics of Galaxies · Physics 2015-06-05 J. E. Dale , B. Ercolano , I. A. Bonnell

Using high-resolution simulations from the FIRE-2 (Feedback In Realistic Environments) project, we study the effects of discreteness in stellar feedback processes on the evolution of galaxies and the properties of the interstellar medium…

Feedback effects due to massive stars and supernovae in the first objects are shown to strongly regulate both galaxy formation/evolution and the reionization process. Here we review the most important ones in some detail. We discuss how…

Astrophysics · Physics 2007-05-23 A. Ferrara , B. Ciardi , S. Marri , P. Todini

We investigate the generation of galactic outflows by supernova feedback in the context of SPH cosmological simulations. We use a modified version of the code GADGET-2 which includes chemical enrichment and energy feedback by Supernova. We…

Our knowledge of the shape of radial metallicity gradients in disc galaxies has recently improved. Conversely, the understanding of their time evolution is more complex, since it requires analysis of stellar populations with different ages,…

Astrophysics of Galaxies · Physics 2016-03-23 L. Magrini , L. Coccato , L. Stanghellini , V. Casasola , D. Galli

We include feedback in global hydrodynamic simulations in order to study the star formation properties, and gas structure and dynamics, in models of galactic disks. We extend previous models by implementing feedback in gravitationally bound…

Astrophysics · Physics 2009-11-13 Rahul Shetty , Eve C. Ostriker

The first generation of stars (commonly known as population III) are expected to form in low-mass protogalaxies in which molecular hydrogen is the dominant coolant. Radiation from these stars will rapidly build up an extragalactic…

Astrophysics · Physics 2009-11-07 Simon C. O. Glover , Peter W. J. L. Brand

We generate synthetic HI Galactic plane surveys from spiral galaxy simulations which include stellar feedback processes. Compared to a model without feedback we find an increased scale height of HI emission (in better agreement with…

Astrophysics of Galaxies · Physics 2015-06-03 David M. Acreman , Clare L. Dobbs , Christopher M. Brunt , Kevin A. Douglas

We present a new model to compute the effects of dust on the integrated spectral properties of galaxies, based on an idealized prescription of the main features of the interstellar medium (ISM). The model includes the ionization of HII…

Astrophysics · Physics 2009-10-31 S. Charlot , S. Michael Fall