Results 11 to 20 of about 216,275 (179)

The properties of the interstellar medium in disc galaxies with stellar feedback [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
We perform calculations of isolated disc galaxies to investigate how the properties of the ISM, the nature of molecular clouds, and the global star formation rate depend on the level of stellar feedback. We adopt a simple physical model, which includes a galactic potential, a standard cooling and heating prescription of the ISM, and self gravity of the
Clare L. Dobbs, Andreas Burkert, J. E. Pringle   +2 more
openalex   +5 more sources

Gas Feedback on Stellar Bar Evolution [PDF]

The Astrophysical Journal, 2007
We analyze evolution of live disk-halo systems in the presence of various gas fractions, f_gas less than 8% in the disk. We addressed the issue of angular momentum (J) transfer from the gas to the bar and its effect on the bar evolution. We find that the
Berentzen, Ingo, Heller, Clayton, Martinez-Valpuesta, Inma, Shlosman, Isaac   +3 more
core   +9 more sources

Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback [PDF]

, 2012
We introduce the Making Galaxies in a Cosmological Context (MaGICC) program of smoothed particle hydrodynamics (SPH) simulations. We describe a parameter study of galaxy formation simulations of an L* galaxy that uses early stellar feedback combined with supernova feedback to match the stellar mass--halo mass relationship.
A. V. Macciò, Agertz, Agertz, Balogh, Behroozi, Benson, Birnboim, Bower, Bower, Bower, Brook, Brook, Brook, Brook, C. Brook, Chabrier, Cignoni, Conroy, Conroy, Courteau, Crain, Dalla Vecchia, Dalla Vecchia, de Blok, Dekel, Durier, Dutton, Ferland, Field, Field, Freeman, Freyer, G. S. Stinson, Gerritsen, Girardi, Governato, Governato, Guedes, Guo, H. M. P. Couchman, Hernandez, Hopkins, J. Wadsley, Jonsson, Katz, Kaufmann, Kawata, Kay, Klypin, Kroupa, Leitherer, Lupton, Macciò, Maller, Mandelbaum, McCarthy, McKee, More, More, Moster, Moster, Murray, Navarro, Oppenheimer, Raiteri, Rees, Reyes, Robertson, Rocha-Pinto, Rocha-Pinto, Sawala, Scannapieco, Scannapieco, Scannapieco, Schaye, Schulz, Shen, Slyz, Somerville, Springel, Stinson, Stinson, Stinson, Stinson, Sutherland, T. R. Quinn, Thacker, Toft, Torres, Tully, van den Bosch, van der Wel, Wadsley, Wadsley, Weisz, White   +95 more
arxiv   +4 more sources

Quantifying Baryonic Feedback on the Warm–Hot Circumgalactic Medium in CAMELS Simulations [PDF]

The Astrophysical Journal
The baryonic physics shaping galaxy formation and evolution are complex, spanning a vast range of scales and making them challenging to model. Cosmological simulations rely on subgrid models that produce significantly different predictions. Understanding
Isabel Medlock, Chloe Neufeld, Daisuke Nagai, Daniel Anglés-Alcázar, Shy Genel, Benjamin D. Oppenheimer, Xavier Sims, Priyanka Singh, Francisco Villaescusa-Navarro   +8 more
doaj   +2 more sources

Inhomogeneous reionization of the intergalactic medium regulated by radiative and stellar feedbacks [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
We study the inhomogeneous reionization in a critical density CDM universe due to stellar sources, including Population III objects. The spatial distribution of the sources is obtained from high resolution numerical N-body simulations. We calculate the source properties taking into account a self-consistent treatment of both radiative (ie ionizing and ...
B. Ciardi, Andrea Ferrara, Fabio Governato, Adrian Jenkins   +3 more
openalex   +5 more sources

X-Raying CAMELS: Constraining Baryonic Feedback in the Circumgalactic Medium with the CAMELS Simulations and eRASS X-Ray Observations [PDF]

The Astrophysical Journal
The circumgalactic medium (CGM) around massive galaxies plays a crucial role in regulating star formation and feedback. Using the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) suite, we develop emulators for the X-ray surface ...
Erwin T. Lau, Daisuke Nagai, Ákos Bogdán, Isabel Medlock, Benjamin D. Oppenheimer, Nicholas Battaglia, Daniel Anglés-Alcázar, Shy Genel, Yueying Ni, Francisco Villaescusa-Navarro   +9 more
doaj   +2 more sources

Low- and High-velocity O vi in Milky Way-like Galaxies: The Role of Stellar Feedback [PDF]

The Astrophysical Journal
Milky Way-type galaxies are surrounded by a warm-hot gaseous halo containing a considerable amount of baryons and metals. The kinematics and spatial distribution of highly ionized ion species such as O vi can be significantly affected by supernova (SN ...
Zhijie Zhang, Xiaoxia Zhang, Hui Li, Taotao Fang, Qingzheng Yu, Yang Luo, Federico Marinacci, Laura V. Sales, Paul Torrey, Mark Vogelsberger   +9 more
doaj   +2 more sources

Stellar feedback and bulge formation in clumpy discs [PDF]

Monthly Notices of the Royal Astronomical Society, 2012
We use numerical simulations of isolated galaxies to study the effects of stellar feedback on the formation and evolution of giant star-forming gas ‘clumps’ in high-redshift, gas-rich galaxies.
Hernquist, Lars, Hopkins, Philip F., Kereš, Dušan, Murray, Norman, Quataert, Eliot   +4 more
core   +7 more sources

Connecting stellar and galactic scales: Energetic feedback from stellar wind bubbles to supernova remnants [PDF]

A&A 690, A72 (2024)
Energy and momentum feedback from stars is a key element of models for galaxy formation and interstellar medium dynamics, but resolving the relevant length scales to directly include this feedback remain out of reach of current-generation simulations.
Yvonne A. Fichtner, Jonathan Mackey, L. Grassitelli, Emilio Romano-Díaz, Cristiano Porciani   +4 more
arxiv   +2 more sources

Cosmic Feedback from AGN [PDF]

, 2009
Accretion onto the massive black hole at the centre of a galaxy can feed energy and momentum into its surroundings via radiation, winds and jets. Feedback due to radiation pressure can lock the mass of the black hole onto the M-sigma relation, and shape the final stellar bulge of the galaxy. Feedback due to the kinetic power of jets can prevent massive
A. C. Fabian, Blustin, Salomé, Silk, Soker   +4 more
arxiv   +4 more sources