Results 121 to 130 of about 55,785 (258)

A physical model of warped galaxy disks

, 1998
Warped H 1 gas layers in the outer regions of spiral galaxies usually display a noticeably twisted structure. This structure almost certainly arises primarily as a result of differential precession in the H I disk as it settles toward a preferred ...
New, Kimberly C.B., Tohline, Joel E., Väth, Horst M., Frank, Juhan   +3 more
core   +1 more source

You Are What You Eat: The Circumgalactic Medium around BreakBRD Galaxies Has Low Mass and Angular Momentum

The Astrophysical Journal, 2023
Observed breakBRD (“break bulges in red disks”) galaxies are a nearby sample of face-on disk galaxies with particularly centrally concentrated star formation: they have red disks but recent star formation in their centers as measured by the D _n 4000 ...
Stephanie Tonnesen, Daniel DeFelippis, Sarah Tuttle   +2 more
doaj   +1 more source

Understanding Degradation Mechanisms in Water‐In‐Salt Electrolyte. Part 2: Impact of the Electrochemical Parameters on the Cycling Behavior of LiFePO4 versus TiS2

Batteries &Supercaps, Volume 9, Issue 4, April 2026.
Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet, Théo Faverge, Vincent Martin, Hiram Castillo Michel, Jean‐Pascal Rueff, Marian Chatenet, Lauréline Lecarme, Claire Villevieille   +7 more
wiley   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

From Rings to Bulges: Evidence for Rapid Secular Galaxy Evolution at z ~ 2 from Integral Field Spectroscopy in the SINS Survey [PDF]

, 2008
We present Hα integral field spectroscopy of well-resolved, UV/optically selected z ∼ 2 star-forming galaxies as part of the SINS survey with SINFONI on the ESO VLT. Our laser guide star adaptive optics and good seeing data show the presence of turbulent
R. Genzel, A. Burkert, N. Bouché, G. Cresci, N. F. Schreiber, A. Shapley, K. Shapiro, L. Tacconi, P. Buschkamp, A. Cimatti, E. Daddi, R. Davies, F. Eisenhauer, D. Erb, S. Genel, O. Gerhard, E. Hicks, D. Lutz, T. Naab, T. Ott, S. Rabien, A. Renzini, C. Steidel, A. Sternberg, S. Lilly   +24 more
semanticscholar   +1 more source

AT 2020nov: Evidence for Disk Reprocessing in a Rare Tidal Disruption Event

The Astrophysical Journal
We present a detailed analysis of AT 2020nov, a tidal disruption event (TDE) in the center of its host galaxy, located at a redshift of z = 0.083. AT 2020nov exhibits unique features, including double-peaked Balmer emission lines, a broad UV/optical ...
Nicholas Earl, K. Decker French, Enrico Ramirez-Ruiz, Katie Auchettl, Sandra I. Raimundo, Kyle W. Davis, Megan Masterson, Iair Arcavi, Wenbin Lu, Vivienne F. Baldassare, David A. Coulter, Thomas de Boer, Maria R. Drout, Hannah Dykaar, Ryan J. Foley, Christa Gall, Hua Gao, Mark E. Huber, David O. Jones, Danial Langeroodi, Chien-Cheng Lin, Eugene A. Magnier, Brenna Mockler, Margaret Shepherd, Margaret E. Verrico   +24 more
doaj   +1 more source

Origins of coplanar counterrotating stellar disk components in late-type galaxies

Astronomy & Astrophysics
Context. Understanding galaxy evolution is key to explaining the structures we observe in the present-day Universe. Counterrotating stellar disks, i.e., co-spatial stellar disks rotating with opposite angular momentum, have been proposed as signatures of
Bugueño M. C., Gómez Facundo A., Dolfi Arianna, Tissera Patricia B.   +3 more
doaj   +1 more source

Star Formation in Self-gravitating Disks in Active Galactic Nuclei. III. Efficient Production of Iron and Infrared Spectral Energy Distributions

The Astrophysical Journal, 2023
Strong iron lines are a common feature of the optical spectra of active galactic nuclei (AGNs) and quasars from z ∼ 6−7 to the local universe, and [Fe/Mg] ratios do not show cosmic evolution.
Jian-Min Wang, Shuo Zhai, Yan-Rong Li, Yu-Yang Songsheng, Luis C. Ho, Yong-Jie Chen, Jun-Rong Liu, Pu Du, Ye-Fei Yuan   +8 more
doaj   +1 more source

ANGULAR MOMENTUM ACQUISITION IN GALAXY HALOS [PDF]

, 2013
We use high-resolution cosmological hydrodynamic simulations to study the angular momentum acquisition of gaseous halos around Milky-Way-sized galaxies.
Kyle R. Stewart, A. Brooks, J. Bullock, A. Maller, J. Diemand, J. Wadsley, L. Moustakas   +6 more
semanticscholar   +1 more source

Imported Retail Beef and Chicken Meat Products Serve as Reservoirs for Emerging Antibiotic‐Resistant Pathotypes of Escherichia coli in Pristine Areas Free From Agricultural Activity

MicrobiologyOpen, Volume 15, Issue 2, April 2026.
Retail meat–derived E. coli frequently harbored multidrug‑resistance phenotypes, diverse virulence determinants, and plasmid‑encoded resistance genes with high conjugative potential. Results indicate meat and poultry as underrecognized reservoirs facilitating dissemination of antimicrobial resistance and pathogenic lineages, with imported products ...
Saehah Yi, Kathleen A. Alexander, Auja Bywater, Galaletsang Dintwe, Ashton N. Sies, Thomas H. Haidl, Andrew D. S. Cameron, Monica A. Ponder   +7 more
wiley   +1 more source