Too much star formation, not enough stellar mass: a cosmic conundrum
Observations of galaxies in the early universe reveal too much star formation to account for the number of stars around today. What gives? Today’s ‘bite investigates.
The Imprint of Cosmic Reionization on Dwarf Galaxies
What can the smallest galaxies in the local Universe tell us about reionization?
Imaged Companion Drives Spiral Arms in Disk
Using 14 years of high resolution near-infrared imaging, radio observations of molecular gas, and a hydrodynamic simulation the authors show that spiral arms seen in the protoplanetary disk around HD 100453 A are caused by its M-dwarf companion.
Astrophysical Classics: A Burst of Inspiration
The year is 1978. Some people are wondering how star formation works in weird-looking galaxies.
Where do globular clusters (maybe) come from?
Today’s paper suggests that globular clusters might come from a newly-discovered class of low-mass galaxies called “Little Blue Dots.” And even if you don’t care about globular clusters, you should read this post anyway to learn about some weird names for different types of galaxies.
How many stars have companions?
The fraction of binary stars has implications in many fields of astronomy. Yet, we still don’t know this number, and even less how it varies with properties such as metallicity. Today’s paper sheds some light on this open question.
Image credits: Palomar Observatory/STScI/WikiSky