Development of Hydrogen and Helium Proximity Zones around Quasars
He II Lya Transmission Spikes and Absorption Troughs in Eight High-resolution Spectra Probing the End of He II Reionization
Hubble Space Telescope/Cosmic Origins Spectrograph Observations of the Quasar Q0302-003: Probing the He II Reionization Epoch and QSO Proximity Effects
Statistical Detection of the He II Transverse Proximity Effect: Evidence for Sustained Quasar Activity for >25 Million Years
The He II Proximity Effect and The Lifetime of Quasars
The impact of satellite trails on Hubble Space Telescope observations
Instrument
COS, COS/FUV, COS/NUV, WFC3, WFC3/IR, WFC3/UVIS
Temporal Coverage
2012-03-07T23:58:56Z/2012-03-09T05:29:31Z
Version
1.0
Mission Description
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, Green comma James Carswell, 2013, 'COS-GTO: Studies of the HeII Reionization Epoch Part 2', 1.0, European Space Agency, https://doi.org/10.5270/esa-ec4ahpj