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34 papers · 2 filters
New stellar velocity substructures from Gaia DR3 proper motions
Daniel Mikkola, Paul J. McMillan, David Hobbs
Local stellar motions are expected, and have been shown, to include signatures of the Galaxy's past dynamical evolution. These are typically divided into the disc, which shows the…
PHANGS-JWST First Results: Rapid Evolution of Star Formation in the Central Molecular Gas Ring of NGC1365
Eva Schinnerer, Eric Emsellem, Jonathan D. Henshaw +36
Large-scale bars can fuel galaxy centers with molecular gas, often leading to the development of dense ring-like structures where intense star formation occurs, forming a very diff…
PHANGS-JWST First Results: Multi-wavelength view of feedback-driven bubbles (The Phantom Voids) across NGC 628
Ashley T. Barnes, Elizabeth J. Watkins, Sharon E. Meidt +51
We present a high-resolution view of bubbles within The Phantom Galaxy (NGC 628); a nearby (~10Mpc), star-forming (~2Msun/yr), face-on (i~9deg) grand-design spiral galaxy. With new…
The Gaia-ESO Survey: Old super-metal-rich visitors from the inner Galaxy
M. L. L. Dantas, R. Smiljanic, R. Boesso +12
We report the identification of a set of old super metal-rich dwarf stars with orbits of low eccentricity that reach a maximum height from the Galactic plane between ~0.5-1.5 kpc.…
VINTERGATAN-GM: The cosmological imprints of early mergers on Milky-Way-mass galaxies
Martin P. Rey, Oscar Agertz, Tjitske K. Starkenburg +6
We present a new suite of cosmological zoom-in hydrodynamical ( spatial resolution) simulations of Milky-Way mass galaxies to study how a varying mass rat…
Chromosome maps of Globular Clusters from wide-field ground-based photometry
S. Jang, A. P. Milone, M. V. Legnardi +10
Hubble Space Telescope (HST) photometry is providing an extensive analysis of globular clusters (GCs). In particular, the pseudo two-colour diagram dubbed 'chromosome map (ChM)' al…