Same ol’ same ol’? Galaxy Clusters across Cosmic Time
X-ray studies of galaxy clusters tell us how the extremely hot gas is distributed within these gigantic structures. Looking at these clusters across different redshifts, what does one find?
X-Ray Beasts and Magnetic fields
Constraining the role of magnetic field in X-ray emission of AGNs.
(Image credit: NASA/Dana Berry, SkyWorks Digital)
Three Stars in a High-Energy Dance
Stars: steady-burning nuclear flames that pierce the darkness of space. Except when they’re not. The star known as HD 181068 is bright, but it’s no standard candle. On closer inspection, this well-studied system is actually home to three stars locked in a complex cosmic dance.
When a Black Hole Stops Being Hungry
New Observations suggest that we may have just witnessed the relativistic jet associated with the tidal disruption event Sw 1644+57 (first observed in March of 2011) turn off.
A deep X-ray observation of Hickson Compact Group 62
Rafferty et al. study the effect of radio jets on the intracluster gas in Hickson Compact Group 62.
The Mystery of Ultra-Luminous X-ray Sources
Does the existence of mysterious, ultra-luminous X-ray sources indicate that black holes may become more massive than previously thought?