Where Did All the Dark Matter Go?
The discovery of a second dark matter deficient galaxy by van Dokkum et al. has caused the debate on galaxies lacking dark matter to resurface.
Small, but Mighty! A galaxy robbed of its stars but contains a supermassive secret.
Today’s post looks at the investigation of a very small galaxy hosting a black hole that’s 15% of its total mass. This paper investigates whether this was once a much bigger galaxy, but has been robbed of its stars by a close call with another nearby galaxy.
Satellites of satellites should exist. Let’s go look for them.
Today’s paper makes predictions for the yet-to-be-observed dwarf galaxy population around Andromeda’s satellite galaxy, M33. It provides scientific justification for a future mission with WFIRST.
Traits of Accreting Galaxies
Observations from the MaNGA survey help to answer the question: What are the features of a galaxy that appears to have undergone recent gas accretion?
The Properties of Simulated Jellyfish
Astronomers use cosmological simulations to better understand a funny sort of satellite galaxy.
How to Diagnose the Light from Early Galaxies
Understanding the physics of a certain emission line will allow astronomers to study galaxies that existed a long time ago far, far away.