Results 131 to 140 of about 375,984 (375)

Enhanced Star Formation and Black Hole Accretion Rates in Galaxy Mergers in IllustrisTNG50

open access: yesThe Astrophysical Journal
Many theoretical and observational studies have suggested that galaxy mergers may trigger enhanced star formation or active galactic nucleus activity.
Aimee L. Schechter   +8 more
doaj   +1 more source

Massive close pairs measure rapid galaxy assembly in mergers at high redshift [PDF]

open access: yes, 2016
We compare mass-selected close pairs at z > 1 with the intrinsic galaxy merger rate in the Illustris Simulations. To do so, we construct three 140 arcmin^2 lightcone catalogs and measure pair fractions, finding that they change little or decrease with ...
G. Snyder   +5 more
semanticscholar   +1 more source

Galaxy Mergers Moulding The Cgm

open access: yes, 2017
Galaxies are surrounded by sizeable gas reservoirs which host a significant amount of metals: the circum-galactic medium (CGM). The CGM acts as a mediator between the galaxy and the extra-galactic medium. However, our understanding of how galaxy mergers, a major evolutionary transformation, impact the CGM remains deficient.
Sara L. Ellison   +4 more
openaire   +2 more sources

FULLY COMPRESSIVE TIDES IN GALAXY MERGERS [PDF]

open access: yesThe Astrophysical Journal, 2009
The disruptive effect of galactic tides is a textbook example of gravitational dynamics. However, depending on the shape of the potential, tides can also become fully compressive. When that is the case, they might trigger or strengthen the formation of galactic substructures (star clusters, tidal dwarf galaxies), instead of destroying them.
Thorsten Naab   +4 more
openaire   +4 more sources

Quantifying galaxy morphology [PDF]

open access: yes, 2014
How do the different shapes of galaxies arise? Milena Pawlik describes work to identify the role of galaxy mergers and starbursts in galactic evolution.Publisher PDFPeer ...
Pawlik, Milena
core   +2 more sources

European Journal of Heart Failure consensus statement. Heart failure pharmacotherapy for patients with heart failure with reduced ejection fraction and concomitant atrial fibrillation: Review of evidence and call to action

open access: yesEuropean Journal of Heart Failure, EarlyView.
Heart failure (HF) and atrial fibrillation (AF) are major global health challenges with rising prevalence and significant morbidity, mortality, and healthcare burden. Despite advances in HF management, AF remains a critical comorbidity that worsens outcomes and requires ad hoc treatment strategies, increasing the risk of non‐adherence and side effects.
Mark Luedde   +24 more
wiley   +1 more source

Intermediate Mass Ratio Inspirals in Milky Way Galaxies

open access: yesThe Astrophysical Journal
A consequence of a nonzero occupation fraction of massive black holes (MBHs) in dwarf galaxies is that these MBHs can become residents of larger galaxy halos via hierarchical merging and tidal stripping.
Jillian Bellovary   +5 more
doaj   +1 more source

Close Pairs as Proxies for Galaxy Cluster Mergers

open access: yes, 2008
Galaxy cluster merger statistics are an important component in understanding the formation of large-scale structure. Unfortunately, it is difficult to study merger properties and evolution directly because the identification of cluster mergers in ...
A. E. Schulz   +10 more
core   +1 more source

Adverse Outcome Pathways Applied to Space Radiation Research

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
ABSTRACT Long‐duration spaceflight exposes astronauts to various stressors that can alter human physiology, potentially causing immediate and long‐term health effects. These stressors can damage biomolecules, cells, tissues, and organs, leading to adverse outcomes.
Vinita Chauhan   +18 more
wiley   +1 more source

Origins of the Evil Eye: M64's Stellar Halo Reveals the Recent Accretion of an SMC-mass Satellite

open access: yesThe Astrophysical Journal Letters, 2023
M64, often called the “Evil Eye” galaxy, is unique among local galaxies. Beyond its dramatic, dusty nucleus, it also hosts an outer gas disk that counter-rotates relative to its stars.
Adam Smercina   +11 more
doaj   +1 more source

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