Results 41 to 50 of about 179,998 (300)
Astronomy & AstrophysicsIn this study, we report conclusive evidence of an ancient star cluster accreted by the Large Magellanic Cloud (LMC). By leveraging observations from the Hubble Space Telescope ( HST ), we investigated the chrono-dynamical structure of a sample of seven ...
F. Niederhofer +17 more
semanticscholar +1 more source
Globular clusters in ORBIT: Complete dynamical characterisation of the Milky Way globular cluster population through updated orbital reconstruction [PDF]
Astronomy & AstrophysicsContext . In hierarchical structure formation, the content of a galaxy is determined both by its in-situ processes and by material added via accretions. Globular clusters, in particular, represent a window into the study of the different merger events
M. De Leo +5 more
semanticscholar +1 more source
The escape velocity curve of the Milky Way in modified Newtonian dynamics [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We determine the escape velocity from the Milky Way (MW) at a range of Galactocentric radii in the context of Modified Newtonian Dynamics (MOND). Due to its non-linear nature, escape is possible if the MW is considered embedded in a constant external gravitational field (EF) from distant objects.
Indranil Banik, Hongsheng Zhao
openaire +4 more sources
The Milky Way’s Circular Velocity Curve Measured Using Element Abundance Gradients
The Astrophysical JournalSpectroscopic surveys now supply precise stellar label measurements such as element abundances for large samples of stars throughout the Milky Way. These element abundances are known to correlate with orbital actions or other dynamical invariants.
Danny Horta +6 more
doaj +1 more source
An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
FEBS Letters, EarlyView.Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
The Three-phase Evolution of the Milky Way
The Astrophysical JournalWe illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra +8 more
doaj +1 more source
Resonant Effects of a Bar on the Galactic Disk Kinematics Perpendicular to Its Plane
Galaxies, 2023 Detailed analysis of kinematics of the Milky Way disk in the solar neighborhood based on the GAIA DR3 catalog reveals the existence of peculiarities in the stellar velocity distribution perpendicular to the galactic plane.
Vladimir Korchagin +4 more
doaj +1 more source
Fundamental limits to orbit reconstruction due to non-conservation of stellar actions in a Milky Way-like simulation [PDF]
Monthly notices of the Royal Astronomical SocietyThe conservation of stellar actions is a fundamental assumption in orbit reconstruction studies in the Milky Way. However, the disc is highly dynamic, with time-dependent, non-axisymmetric features like transient spiral arms and giant molecular clouds (
Arunima Arunima +4 more
semanticscholar +1 more source
Dynamical Modeling of the Milky Way Bugle [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractBulges are commonly believed to form in the dynamical violence of galaxy collisions and mergers. We model the stellar kinematics of the Bulge Radial Velocity Assay (BRAVA) and find no sign that the Milky Way contains a classical bulge formed by scrambling pre-existing disks of stars in major mergers.
openaire +1 more source
The human gut microbiome across the life course
FEBS Letters, EarlyView.Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero +4 more
wiley +1 more source