Results 91 to 100 of about 2,636,463 (178)

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

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   +1 more source

The Kinematic Bimodality: Efficient Feedback and Cold Gas Deficiency in Slow-rotating Galaxies

The Astrophysical Journal Letters, 2023
The bimodality in the stellar spin of low-redshift (massive) galaxies, ubiquitously existing at all star formation levels and in diverse environments, suggests that galaxies grow and quench through two diverged evolutionary pathways.
Bitao Wang, Yingjie Peng
doaj   +1 more source

A fundamental test for stellar feedback recipes in galaxy simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2019
YF and MRK acknowledge support from the Australian Government through the Australian Research Council’s Discovery Projects and Future Fellowships funding schemes (project DP160100695 and FT180100375).
Y. Fujimoto, M. Chevance, D. Haydon, M. Krumholz, J. M. Diederik Kruijssen   +4 more
semanticscholar   +1 more source

M-dwarf stellar winds : the effects of realistic magnetic geometry on rotational evolution and planets [PDF]

, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship. JM acknowledges support from a fellowship of the Alexander von Humboldt foundation.We perform three-dimensional numerical simulations of stellar winds of early-M-dwarf stars.
Morin, J., Gombosi, T.I., Donati, J.F., Opher, M., Gombosi, Tamás, Jardine, M., Morin, Julien, Gombosi, T. I., Vidotto, A. A., Vidotto, A.A., Donati, J. F., Gombosi, Tamas I.   +11 more
core   +1 more source

Exploring the Evolution of a Dwarf Spheroidal Galaxy with Smoothed-particle Hydrodynamics Simulations. I. Stellar Feedback

The Astrophysical Journal
A fundamental question regarding the evolution of dwarf spheroidal galaxies is the identification of the key physical mechanisms responsible for gas depletion.
Roberto Hazenfratz, Paramita Barai, Gustavo A. Lanfranchi, Anderson Caproni   +3 more
doaj   +1 more source

KINEMATICS OF EXTREMELY METAL-POOR GALAXIES: EVIDENCE FOR STELLAR FEEDBACK [PDF]

The Astrophysical Journal, 2017
The extremely metal-poor (XMP) galaxies analyzed in a previous paper have large star-forming regions with a metallicity lower than the rest of the galaxy. Such a chemical inhomogeneity reveals the external origin of the metal-poor gas fueling star formation, possibly indicating accretion from the cosmic web.
A. Olmo-García, J. Sánchez Almeida, C. Muñoz-Tuñón, M. E. Filho, B. G. Elmegreen, D. M. Elmegreen, E. Pérez-Montero, J. Méndez-Abreu   +7 more
openaire   +3 more sources

Implications of the Nanohertz Gravitational-wave Background for Galactic Feedback and Massive Black Hole Growth

The Astrophysical Journal Letters
We investigate how pulsar timing array (PTA) measurements of the nanohertz gravitational-wave background (GWB) can constrain models for the growth history of supermassive black holes (SMBHs) and how active galactic nucleus (AGN) and stellar feedback ...
Megan Taylor Tillman, Blakesley Burkhart, Chiara M. F. Mingarelli, J. Andrew Casey-Clyde, Lars Hernquist, Sownak Bose, Enikő Regős, César Hernández-Aguayo   +7 more
doaj   +1 more source

Stellar Feedback & Bulge Formation in Clumpy Disks

, 2011
11 pages, 4 figures, MNRAS (Revised to match accepted version, additional numerical tests added).
Hopkins, Philip F., Keres, Dusan, Murray, Norman, Quataert, Eliot, Hernquist, Lars   +4 more
openaire   +5 more sources

The AGORA High-resolution Galaxy Simulations Comparison Project. VIII. Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at 1 < z < 5

The Astrophysical Journal
We investigate how differences in the stellar feedback produce disks with different morphologies in Milky Way–like progenitors over 1 ≤ z ≤ 5, using eight state-of-the-art cosmological hydrodynamics simulation codes in the AGORA project.
Minyong Jung, Ji-hoon Kim, Thịnh Hũ’u Nguyễn, Ramón Rodríguez-Cardoso, Santi Roca-Fàbrega, Joel R. Primack, Kirk S. S. Barrow, Anna Genina, Pablo Granizo, Hyeonyong Kim, Kentaro Nagamine, Yuri Oku, Johnny W. Powell, Yves Revaz, Héctor Velázquez, Alessandro Lupi, Ikkoh Shimizu, Tom Abel, Oscar Agertz, Renyue Cen, Daniel Ceverino, Avishai Dekel, Chaerin Jeong, Lucio Mayer, Boon Kiat Oh, Thomas R. Quinn, Hyunmi Song, AGORA Collaboration   +27 more
doaj   +1 more source

Protostellar Jets in Star Cluster Formation and Evolution. I. Implementation and Initial Results

The Astronomical Journal
Stars form in clusters from the gravitational collapse of giant molecular clouds, which is opposed by a variety of physical processes, including stellar feedback. The interplay between these processes determines the star formation rate of the clouds.
Sabrina M. Appel, Blakesley Burkhart, Mordecai-Mark Mac Low, Eric P. Andersson, Claude Cournoyer-Cloutier, Sean Lewis, Stephen L. W. McMillan, Brooke Polak, Simon Portegies Zwart, Aaron Tran, Maite J. C. Wilhelm   +10 more
doaj   +1 more source