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.
What can the smallest galaxies in the local Universe tell us about reionization?
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.
The year is 1978. Some people are wondering how star formation works in weird-looking galaxies.
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.
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