NuSTAR Observes an Extremely Luminous Quasar
October 1st, 2024
An illustration of powerful Ultra-Fast Outflows being launched from a supermassive black hole. Credit: ESA/AOES Medialab (https://www.nasa.gov/universe/ultra-fast-outflows-help-monster-black-holes-shape-their-galaxies/)

Over the past week, NuSTAR has observed WISSH-13, an extremely luminous quasar from cosmic noon (z=2-4). This is from the WISSHFUL Large Program, a 750 ks Cycle 10 NuSTAR program coordinated with a multi-year XMM-Newton Heritage Program to observe this sample. The primary goal of the NuSTAR program is to search for Ultra-Fast Outflows (UFOs) in these targets, which requires high signal-to-noise ratio broadband X-ray data. Leveraging the unprecedented XMM-Newton time allocation, which is sensitive to redshifted iron absorption, NuSTAR enables accurate determination of the continuum, which is essential for robust UFO detections. UFOs provide one of the key diagnostics of AGN feedback, which is believed to play a key role in the evolution of massive galaxies.

 

Authors: Daniel Stern (NuSTAR Project Scientist, JPL), Alina Kiesling (NuSTAR Project Manager, JPL).