We present Dark Energy Spectroscopic Instrument (DESI) observations of the inner halo of M31, which reveal the kinematics of a recent merger-a galactic...
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PublicationDESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor
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PublicationDisk Galaxies Are Self-similar: The Universality of the H I-to-Halo Mass Ratio for Isolated Disks
Observed scaling relations in galaxies between baryons and dark matter global properties are key to shed light on the process of galaxy formation and on the...
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PublicationDwarf Galaxies with Central Cores in Modified Newtonian Dynamics Gravity
Some dwarf galaxies are within the Mondian regime at all radii, i.e., the gravitational acceleration provided by the observed baryons is always below the...
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PublicationExact Semianalytical Calculation of Rotation Curves with Bekenstein-Milgrom Nonrelativistic MOND
Astronomers derive MOdified Newtonian Dynamics (MOND) rotation curves using the simple algebraic rule of calculating the acceleration as equal to the Newtonian...
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DocumentIonized gas kinematics and massive star formation in NGC 1530
Abstract. We present emission line mapping of the strongly barred galaxy NGC 1530 obtained using Fabry-P´erot interferometry in Hα, at significantly enhanced...
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PublicationOrbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
Many approaches to galaxy dynamics assume that the gravitational potential is simple and the distribution function is time invariant. Under these assumptions...
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PublicationPhotometric Signature of Ultraharmonic Resonances in Barred Galaxies
Bars may induce morphological features, such as rings, through their resonances. Previous studies suggested that the presence of "dark gaps," or regions of a...
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PublicationSecondary Infall in the Seyfert’s Sextet: A Plausible Way Out of the Short Crossing Time Paradox
We used integral field spectroscopy from CALIFA DR3 and multiwavelength publicly available data to investigate the star formation histories of galaxies in the...
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PublicationStar Formation Histories of Ultra-faint Dwarf Galaxies: Environmental Differences between Magellanic and Non-Magellanic Satellites?
We present the color-magnitude diagrams and star formation histories (SFHs) of seven ultra-faint dwarf galaxies: Horologium 1, Hydra 2, Phoenix 2, Reticulum 2...