254 citations · 4k across the 119 of their papers we have counts for
7 papers · 2 filters
Orbits and action changes during star-clump encounters responsible for the origin of exponential discs in dwarf galaxies
Jian Wu, Curtis Struck, Bruce G. Elmegreen +1
Previous studies found that stellar scattering by massive clumps can lead to the formation of exponential profiles in galaxy discs, but details on how a star is moved around have n…
Observations of a Magellanic Corona
Dhanesh Krishnarao, Andrew J. Fox, Elena D'Onghia +6
The Large and Small Magellanic Clouds (LMC/SMC) are the closest major satellite galaxies of the Milky Way. They are likely on their first passage on an infalling orbit towards our…
Stellar Bars in Isolated Gas-Rich Spiral Galaxies Do Not Slow Down
Angus Beane, Lars Hernquist, Elena D'Onghia +6
Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactio…
A new resonance-like feature in the outer disc of the Milky Way
Ronald Drimmel, Shourya Khanna, Elena D'Onghia +18
Modern astrometric and spectroscopic surveys have revealed a wealth of structure in the phase space of stars in the Milky Way, with evidence of resonance features and non-equilibri…
Moving groups across Galactocentric radius with Gaia DR3
Scott Lucchini, Emil Pellett, Elena D'Onghia +1
The kinematic plane of stars near the Sun has proven an indispensable tool for untangling the complexities of the structure of our Milky Way (MW). With ever improving data, numerou…
The Radcliffe Wave as the gas spine of the Orion Arm
Cameren Swiggum, João Alves, Elena D'Onghia +7
The Radcliffe Wave is a kpc long coherent gas structure containing most of the star-forming complexes near the Sun. In this Letter we aim to find a Galactic context for the…
Photometric Signature of Ultra-Harmonic Resonances in Barred Galaxies
Dhanesh Krishnarao, Zachary J. Pace, Elena D'Onghia +11
Bars may induce morphological features, such as rings, through their resonances. Previous studies suggested that the presence of 'dark-gaps', or regions of a galaxy where the diffe…