Results 101 to 110 of about 2,636,463 (178)

The star formation factory revisited

Astronomy & Astrophysics
Context. Stellar feedback regulates star formation and shapes the interstellar medium, yet its role during the collapse of molecular clouds remains uncertain over a wide range of initial conditions. Aims.
Jiménez S., Kománek D., Wünsch R., Palouš J., Ehlerová S., Martínez-González S., Srbljanović A.   +6 more
doaj   +1 more source

Impact of galactic shear and stellar feedback on star formation [PDF]

Astronomy & Astrophysics, 2018
Context. Feedback processes and the galactic shear regulate star formation. Aims. We investigate the effects of differential galactic rotation and stellar feedback on the interstellar medium (ISM) and on the star formation rate (SFR). Methods.
C. Colling, P. Hennebelle, S. Geen, O. Iffrig, F. Bournaud   +4 more
semanticscholar   +1 more source

Forged by Feedback: Stellar Properties of Brightest Group Galaxies in Cosmological Simulations

The Astrophysical Journal
We investigate how different galaxy formation models impact the stellar properties of brightest group galaxies (BGGs) in four cosmological simulations: R omulus , S imba , S imba -C, and O bsidian .
Ruxin Barré, Arif Babul, Ghassem Gozaliasl, Alexis Finoguenov, Romeel Davé, Aviv Padawer-Blatt, Douglas Rennehan, Vida Saeedzadeh, Renier T. Hough, Thomas R. Quinn   +9 more
doaj   +1 more source

X-ray stellar feedback in low-metallicity starbursts

Astronomy & Astrophysics
Context. The X-ray output of low-metallicity starburst galaxies is a key component of stellar feedback, tracing the processes responsible for gas ionization and chemical enrichment.
Chatzis M., Oskinova L. M., Reyero Serantes S., Lehmer B. D., Östlin G., Bik A., Hayes M., Mas-Hesse J. M., Gallagher J. S., Fürst F.   +9 more
doaj   +1 more source

Massive Interacting Binaries Enhance Feedback in Star-forming Regions

The Astrophysical Journal
We present a new framework to incorporate feedback from massive interacting binaries in simulations of star cluster formation. Our new feedback model adds binary stellar evolution to the cluster formation code Torch , and couples it in Amuse to the ...
Claude Cournoyer-Cloutier, Eric P. Andersson, Sabrina M. Appel, Natalia Lahén, Brooke Polak, Antti Rantala, Silvia Toonen, Alison Sills, Steven Rieder, Simon Portegies Zwart, Mordecai-Mark Mac Low, William E. Harris   +11 more
doaj   +1 more source

Discrete effects in stellar feedback: Individual Supernovae, Hypernovae, and IMF Sampling in Dwarf Galaxies. [PDF]

Monthly notices of the Royal Astronomical Society, 2017
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 (ISM).
Kung-Yi Su, P. Hopkins, C. Hayward, Xiangcheng Ma, M. Boylan-Kolchin, D. Kasen, D. Keres̆, C. Faucher-Giguére, Matthew E. Orr, Coral Wheeler   +9 more
semanticscholar   +1 more source

Shooting for the Stars: Jet-mode Feedback and AGN Jet Deceleration from Stellar Mass Loading

The Astrophysical Journal
Active Galactic Nucleus (AGN) jets are thought to be vital ingredients in galaxy evolution through the action of kinetic feedback; however, how narrow, relativistic outflows couple to galaxies remains an open question.
Talia M. O’Shea, Sebastian Heinz, Melinda Soares-Furtado, Zsofi Igo, Andrea Merloni   +4 more
doaj   +1 more source

Theoretical Re-evaluations of Scaling Relations between SMBHs and Their Host Galaxies–2. Importance of AGN Feedback Suggested by Stellar Age–Velocity Dispersion Relation

Frontiers in Astronomy and Space Sciences, 2017
We present the galactic stellar age—velocity dispersion relation obtained from a semi-analytic model of galaxy formation. We divide galaxies into two populations: galaxies which have over-massive/under-massive black holes (BHs) against the best-fitting ...
Hikari Shirakata, Toshihiro Kawaguchi, Takashi Okamoto, Tomoaki Ishiyama   +3 more
doaj   +1 more source

The OSIRIS Lens-amplified Survey (OLAS). I. Dynamical Effects of Stellar Feedback in Low-mass Galaxies at z ∼ 2 [PDF]

Astrophysical Journal, 2018
We introduce the OSIRIS Lens-Amplified Survey (OLAS), a kinematic survey of gravitationally lensed galaxies at cosmic noon taken with Keck adaptive optics.
Jessie Hirtenstein, T. Jones, Xin Wang, A. Wetzel, K. El-Badry, A. Hoag, T. Treu, M. Bradač, T. Morishita   +8 more
semanticscholar   +1 more source

A Cooler Look at the Environment of Cygnus X-1: Searching for Dynamical Interactions within Cold Molecular Gas

The Astrophysical Journal
We present IRAM 30 m observations aimed at identifying potential outflow–interstellar medium interaction sites in the vicinity of the black hole X-ray binary Cygnus X-1, which displays persistent relativistic jets and a prominent stellar wind. Using this
Pau Bosch-Cabot, Alexandra J. Tetarenko, Valentí Bosch-Ramon, James C. A. Miller-Jones, David Russell, Sara E. Motta, Pikky Atri, María Díaz-Trigo, Isabella Mariani, Steve Prabu   +9 more
doaj   +1 more source