Results 71 to 80 of about 1,357,920 (351)

The Role of Black Hole Feedback on Size and Structural Evolution in Massive Galaxies

, 2018
We use cosmological hydrodynamical simulations to investigate the role of feedback from accreting black holes on the evolution of sizes, compactness, stellar core density and specific star-formation of massive galaxies with stellar masses of $ M_{star} >
Choi, Ena, Hirschmann, Michaela, Naab, Thorsten, Ostriker, Jeremiah P., Somerville, Rachel S.   +4 more
core   +2 more sources

Stellar feedback from HMXBs in cosmological hydrodynamical simulations [PDF]

, 2015
We explored the role of X-ray binaries composed by a black hole and a massive stellar companion (BHXs) as sources of kinetic feedback by using hydrodynamical cosmological simulations. Following previous results, our BHX model selects low metal-poor stars
Artale, M. C., Pellizza, L. J., Tissera, P. B.   +2 more
core   +2 more sources

Stellar hydrodynamical modeling of dwarf galaxies: simulation methodology, tests, and first results

, 2015
Cosmological simulations still lack numerical resolution or physical processes to simulate dwarf galaxies in sufficient details. Accurate numerical simulations of individual dwarf galaxies are thus still in demand.
Hensler, Gerhard, Recchi, Simone, Vorobyov, Eduard I.   +2 more
core   +1 more source

Nature versus nurture: what regulates star formation in satellite galaxies? [PDF]

, 2018
We use our state-of-the-art Galaxy Evolution and Assembly (GAEA) semi-analytic model to study how and on which time-scales star formation is suppressed in satellite galaxies.
De Lucia, Gabriella, Fontanot, Fabio, Hirschmann, Michaela   +2 more
core   +3 more sources

A Review of the Theory of Galactic Winds Driven by Stellar Feedback [PDF]

Galaxies, 2018
Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation, and enriching the intergalactic medium with metals ...
Dong Zhang
semanticscholar   +1 more source

Molecular cloud evolution – V. Cloud destruction by stellar feedback [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We present a numerical study of the evolution of molecular clouds, from their formation by converging flows in the warm ISM, to their destruction by the ionizing feedback of the massive stars they form. We improve with respect to our previous simulations by including a different stellar-particle formation algorithm, which allows them to have masses ...
Colin, Pedro, Vazquez-Semadeni, Enrique, Gomez, Gilberto C.   +2 more
openaire   +2 more sources

Bringing Stellar Evolution and Feedback Together: Summary of Proposals from the Lorentz Center Workshop

Publications of the Astronomical Society of the Pacific, 2023
Abstract Stars strongly impact their environment, and shape structures on all scales throughout the universe, in a process known as “feedback.” Due to the complexity of both stellar evolution and the physics of larger astrophysical structures, there remain many unanswered questions about how feedback operates and what we can learn about ...
Geen, S., Agrawal, P., Crowther, P.A., Keller, B.W., de Koter, A., Keszthelyi, Z., van de Voort, F., Ali, A.A., Backs, F., Bonne, L., Brugaletta, V., Derkink, A., Ekström, S., Fichtner, Y.A., Grassitelli, L., Götberg, Y., Higgins, E.R., Laplace, E., You Liow, K., Lorenzo, M., McLeod, A.F., Meynet, G., Newsome, M., André Oliva, G., Ramachandran, V., Rey, M.P., Rieder, S., Romano-Díaz, E., Sabhahit, G., Sander, A.A.C., Sarwar, R., Stinshoff, H., Stoop, M., Szécsi, D., Trebitsch, M., Vink, J.S., Winch, E.   +36 more
openaire   +6 more sources

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, Eric W. Koch, Erik W. Rosolowsky, Stella S. R. Offner   +3 more
openaire   +2 more sources

SOFIA FEEDBACK Survey: PDR Diagnostics of Stellar Feedback in Different Regions of RCW 49

The Astronomical Journal, 2022
Abstract We quantified the effects of stellar feedback in RCW 49 by determining the physical conditions in different regions using the [C ii] 158 μm and [O i] 63 μm observations from SOFIA, the 12CO (3–2) observations from APEX, and the H2 line observations from Spitzer telescopes.
M. Tiwari, M. Wolfire, M. W. Pound, E. Tarantino, R. Karim, L. Bonne, C. Buchbender, R. Güsten, C. Guevara, S. Kabanovic, Ü. Kavak, M. Mertens, N. Schneider, R. Simon, J. Stutzki, A. G. G. M. Tielens   +15 more
openaire   +3 more sources

Feedback and the formation of dwarf galaxy stellar haloes [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
Stellar population studies show that low mass galaxies in all environments exhibit stellar halos that are older and more spherically distributed than the main body of the galaxy. In some cases, there is a significant intermediate age component that extends beyond the young disk. We examine a suite of Smoothed Particle Hydrodynamic (SPH) simulations and
Stinson, Greg, Dalcanton, Julianne, Quinn, Tom, Gogarten, Stephanie, Kaufmann, Tobias, Wadsley, James   +5 more
openaire   +2 more sources