Guest: Novel Clues to the Formation of Ultra-Compact Dwarf Galaxies
In today’s bite, we look at some newly observed systems in the Virgo cluster. These observations provide clues to understanding how some of the most dense galaxies known to us form.
Uncertainty is the only certainty in gravitational waveforms
Most gravitational-wave models throw away uncertainty, which could make Einstein’s theory look wrong when it isn’t. Today’s authors show when this could happen and how to take care of the problem.
Speeding Under Pressure on the Intergalactic Highway.
Using low frequency radio observations of the galaxy NGC 2276 with the uGMRT and LOFAR telescopes, the authors discover that the galaxy has a trail of gas about 100 kiloparsecs long! As the galaxy moves through the local ionised medium, the pressure exerted on it removes gas from it’s disk.
The First Starspot Spectrum Revealed by JWST
Stars have spots that can mess with our planetary atmosphere observations. Using JWST, today’s authors take advantage of the unique TOI-3884 system to directly probe one of these regions.
Guest: If you give a galaxy a starburst, it’ll probably quench the gas away
The distribution of post-starburst regions within galaxies is linked to diverse quenching pathways that are likely driven by mergers. Guest author, Emmy Wisz, explains how different star formation histories could be the key to understanding quenching mechanisms.
A Clash of Two Titans: Why GW231123 pushes the limits of scientists’ models
Another day, another interesting LIGO-Virgo-KAGRA detection! Find out why the extreme parameters of GW231123 create problems for gravitational wave modelers and may have some new information about black hole formation!