Extreme-velocity quasar outflows and the role of X-ray shielding, Hamann, F.,Chartas, G.,McGraw, S., Monthly Notices of the Royal Astronomical Society, 435, 2013-10-01 00:00:00, 2013MNRAS.435..133H||The Nature of the Ultraviolet/X-Ray Absorber in PG 2302+029, Sabra, Bassem M.,Hamann, Fred,Jannuzi, Buell T., The Astrophysical Journal, 590, 2003-06-01 00:00:00, 2003ApJ...590...66S
Launched in 1990, the NASA/ESA Hubble Space Telescope remains the premier UV and visible light telescope in orbit. With well over 1.6 million observations from 10 different scientific instruments, the ESA Hubble Science Archive is a treasure trove of astronomical data to be exploited.
European Space Agency, 2006, The Unusual Absorption Line System Of Pg 2302+029 -- Ejected Or Intervening?, 1.0, European Space Agency, https://doi.org/10.5270/esa-2yym9ar