We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

Our Galaxy, the Milky Way, is a benchmark for understanding disk galaxies. It is the only
galaxy whose formation history can be studied using the full distribution of stars from faint …

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ABSTRACT We determine the Milky Way (MW) mass profile inferred from fitting physically
motivated models to the Gaia DR2 Galactic rotation curve and other data. Using various …

ABSTRACT I describe the design, implementation, and usage of galpy, a python package for
galactic-dynamics calculations. At its core, galpy consists of a general framework for …

The distribution of the non-luminous matter in galaxies of different luminosity and Hubble
type is much more than a proof of the existence of dark particles governing the structures of …

Gamma-ray bursts (GRBs) display a bimodal duration distribution with a separation between
the short-and long-duration bursts at about 2 s. The progenitors of long GRBs have been …

Numerical simulations have become a major tool for understanding galaxy formation and
evolution. Over the decades the field has made significant progress. It is now possible to …

A wealth of astronomical data indicate the presence of mass discrepancies in the Universe.
The motions observed in a variety of classes of extragalactic systems exceed what can be …

We present mass models of the Milky Way created to fit observational constraints and to be
consistent with expectations from theoretical modelling. The method used to create these …