English
Related papers

Related papers: Supernova Feedback in Molecular Clouds: Global Evo…

200 papers

While the importance of supernova feedback in galaxies is well established, its role on the scale of molecular clouds is still debated. In this work, we focus on the impact of supernovae on individual clouds, using a high-resolution…

Astrophysics of Galaxies · Physics 2020-12-02 Zu-Jia Lu , Veli-Matti Pelkonen , Paolo Padoan , Liubin Pan , Troels Haugbølle , Åke Nordlund

Feedback from supernovae is often invoked as an important process in limiting star formation, removing gas from galaxies and hence as a determining process in galaxy formation. Here we report on numerical simulations investigating the…

Astrophysics of Galaxies · Physics 2020-02-19 William E. Lucas , Ian A. Bonnell , James E. Dale

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 numerically simulate some of the most critical physical processes in galaxy formation: The supernova feedback, in conjunction with gasdynamics and gravity, plays a crucial role in determining how galaxies arise within the context of a…

Astrophysics · Physics 2015-06-24 G. Yepes , R. Kates , A. Khokhlov , A. Klypin

Context. Molecular clouds are known to be turbulent and strongly affected by stellar feedback. Moreover, stellar feedback is believed to drive turbulence at large scales in galaxies. Aims. We study the role played by supernovae in molecular…

Astrophysics of Galaxies · Physics 2015-04-15 Olivier Iffrig , Patrick Hennebelle

We explore the interplay between supernovae and the ionizing radiation of their progenitors in star forming regions. The relative contributions of these stellar feedback processes are not well understood, particularly on scales greater than…

Astrophysics of Galaxies · Physics 2022-06-01 Thomas J. R. Bending , Clare L. Dobbs , Matthew R. Bate

Observations that resolve nearby galaxies into individual regions across multiple phases of the gas-star formation-feedback ``matter cycle'' have provided a sharp new view of molecular clouds, star formation efficiencies, timescales for…

Astrophysics of Galaxies · Physics 2024-04-01 Eva Schinnerer , Adam K. Leroy

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…

Astrophysics of Galaxies · Physics 2015-06-15 Pedro Colin , Enrique Vazquez-Semadeni , Gilberto C. Gomez

We explore when supernovae can (and cannot) regulate the star formation and bulge growth in galaxies based on a sample of 18 simulated galaxies. The simulations include key physics such as evaporation and conduction, neglected in prior…

Astrophysics of Galaxies · Physics 2016-08-17 B. W. Keller , J. Wadsley , H. M. P Couchman

Supernovae are the most energetic stellar events and influence the interstellar medium by their gasdynamics and energetics. By this, both also affect the star formation positively and negatively. In this paper, we review the development of…

Astrophysics of Galaxies · Physics 2015-05-20 Gerhard Hensler

Feedback from massive stars is thought to play an important role in the evolution of molecular clouds. In this work we analyse the effects of stellar winds and supernovae (SNe) in the evolution of two massive ($\sim 10^6\,M_\odot$) giant…

Astrophysics of Galaxies · Physics 2016-10-11 Ramon Rey-Raposo , Clare Dobbs , Oscar Agertz , Christian Alig

We present a new stellar feedback model that reproduces superbubbles. Superbubbles from clustered young stars evolve quite differently to individual supernovae and are substantially more efficient at generating gas motions. The essential…

Astrophysics of Galaxies · Physics 2014-07-17 B. W. Keller , J. Wadsley , S. M. Benincasa , H. M. P Couchman

Stellar feedback, star formation and gravitational interactions are major controlling forces in the evolution of Giant Molecular Clouds (GMCs). To explore their relative roles, we examine the properties and evolution of GMCs forming in an…

Astrophysics of Galaxies · Physics 2015-06-23 Elizabeth J. Tasker , James Wadsley , Ralph Pudritz

We describe an overall picture of galactic-scale star formation. Recent high-resolution magneto-hydrodynamical simulations of two-fluid dynamics with cooling/heating and thermal conduction have shown that the formation of molecular clouds…

Astrophysics of Galaxies · Physics 2015-07-29 Shu-ichiro Inutsuka , Tsuyoshi Inoue , Kazunari Iwasaki , Takashi Hosokawa

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…

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

We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a co-spatial mixture of cold and hot ISM components, and is formulated…

Stellar feedback plays a key role in galaxy formation by regulating star formation, driving interstellar turbulence and generating galactic scale outflows. Although modern simulations of galaxy formation can resolve scales of 10-100 pc,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Oscar Agertz , Andrey V. Kravtsov , Samuel N. Leitner , Nickolay Y. Gnedin

We simulate the effects of massive star feedback, via winds and SNe, on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We use 3D hydrodynamic models with a temperature dependent average particle…

Astrophysics of Galaxies · Physics 2012-09-25 Julian Pittard , Hazel Rogers

What exactly controls star formation in the Galaxy remains controversial. In particular, the role of feedback and magnetic field are still partially understood. We investigate the role played by supernovae feedback and magnetic field onto…

Astrophysics of Galaxies · Physics 2015-06-19 Patrick Hennebelle , Olivier Iffrig
‹ Prev 1 2 3 10 Next ›