Hypervelocity stars (HVSs) travel with such extreme velocities that dynamical ejection via
gravitational interaction with a massive black hole (MBH) is their most likely origin …

Over 100 trigonometric parallaxes and proper motions for masers associated with young,
high-mass stars have been measured with the Bar and Spiral Structure Legacy Survey, a …

Ultralight bosons can induce superradiant instabilities in spinning black holes, tapping their
rotational energy to trigger the growth of a bosonic condensate. Possible observational …

The γ-ray sky> 100 MeV is dominated by the diffuse emissions from interactions of cosmic
rays with the interstellar gas and radiation fields of the Milky Way. Observations of these …

Ultralight scalar fields around spinning black holes can trigger superradiant instabilities,
forming a long-lived bosonic condensate outside the horizon. We use numerical solutions of …

We present a three-dimensional model for the Milky Way fitted to the far-infrared (FIR) and
near-infrared (NIR) data from the COBE/DIRBE instrument for Galactic latitudes| b|< 30 &j0; …

Context. We study the role of radial migration of stars on the chemical evolution of the Milky
Way disk. Aims. We are interested in the impact of that process on the local properties of the …

We compare both the Milky Way and M31 galaxies to local external disk galaxies within the
same mass range, using their locations in the planes drawn by V flat versus MK (the Tully …

Binary black holes are the primary endpoint of massive stars. Their properties provide a
unique opportunity to constrain binary evolution, which remains poorly understood. We …

The vertical scaleheight of the atomic hydrogen gas shows a remarkably flat distribution with
the galactocentric radius in the inner Galaxy. This has been a long-standing puzzle (Oort …