Results 41 to 50 of about 3,312 (299)

Gas Feedback on Stellar Bar Evolution [PDF]

The Astrophysical Journal, 2007
12 pages, 12 figures, accepted for publication by the Astrophysical Journal.
Berentzen, Ingo, Shlosman, Isaac, Martinez-Valpuesta, Inma, Heller, Clayton   +3 more
openaire   +3 more sources

Stellar feedback by radiation pressure and photoionization [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
18 pages, 19 figures (main results presented in 13 pages, 10 figures; extended appendix for RT tests with extra 9 figures).
Sales L V, Marinacci F, Springel V, Petkova M   +3 more
openaire   +3 more sources

Dust-buried Compact Sources in the Dwarf Galaxy NGC 4449

The Astrophysical Journal, 2023
Multiwavelength images from the Hubble Space Telescope covering the wavelength range 0.27–1.6 μ m show that the central area of the nearby dwarf galaxy NGC 4449 contains several tens of compact sources that are emitting in the hydrogen recombination line
Daniela Calzetti, Sean T. Linden, Timothy McQuaid, Matteo Messa, Zhiyuan Ji, Mark R. Krumholz, Angela Adamo, Bruce Elmegreen, Kathryn Grasha, Kelsey E. Johnson, Elena Sabbi, Linda J. Smith, Varun Bajaj   +12 more
doaj   +1 more source

M-σ relations across cosmic time

The Open Journal of Astrophysics, 2023
Feedback from active galactic nuclei (AGN) has long been invoked to explain the correlation between black hole mass and stellar velocity dispersion (M-σ) discovered in low redshift galaxies. We describe the time evolution of AGN in the M-σ plane based on
David Garofalo, Damian J. Christian, Chase Hames, Max North, Keegan Thottam, Alisaie Eckelbarger   +5 more
doaj   +1 more source

Velocity dispersion functions of pressure-supported galaxies in EAGLE simulations with varying active galactic nucleus feedback

Astronomy & Astrophysics
We investigated the stellar velocity dispersion functions (VDFs) of pressure-supported galaxies in the EAGLE cosmological simulations. The central stellar velocity dispersion is one of the fundamental dynamical tracers of the total mass of galaxy ...
Choi Jungwon, Sohn Jubee
doaj   +1 more source

The energy and dynamics of trapped radiative feedback with stellar winds

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT In this paper, we explore the significant, non-linear impact that stellar winds have on H ii regions. We perform a parameter study using three-dimensional radiative magnetohydrodynamic simulations of wind and ultraviolet radiation feedback from a 35 M⊙ star formed self-consistently in a turbulent, self-gravitating cloud, similar
Geen, Sam, Bieri, Rebekka, de Koter, Alex, Kimm, Taysun, Rosdahl, Joakim   +4 more
openaire   +6 more sources

Metallicity Gradients in Modern Cosmological Simulations. II. The Role of Bursty versus Smooth Feedback at High Redshift

The Astrophysical Journal
The distribution of gas-phase metals within galaxies encodes the impact of stellar feedback on galactic evolution. At high redshift, when galaxies are rapidly assembling, feedback-driven outflows and turbulence can strongly reshape radial metallicity ...
Alex M. Garcia, Paul Torrey, Aniket Bhagwat, Xuejian Shen, Mark Vogelsberger, William McClymont, Jaya Nagarajan-Swenson, Sophia G. Ridolfo, Peixin Zhu, Dhruv T. Zimmerman, Oliver Zier, Sarah Biddle, Arnab Sarkar, Priyanka Chakraborty, Ruby J. Wright, Kathryn Grasha, Tiago Costa, Laura Keating, Rahul Kannan, Aaron Smith, Enrico Garaldi, Ewald Puchwein, Benedetta Ciardi, Lars Hernquist, Lisa J. Kewley   +24 more
doaj   +1 more source

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

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

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source