Intergalactic He II Absorption in the Spectra of Quasars at Redshifts 3.5 and 3.8, Observed with the HST ACS Prism
Instrument
ACS, ACS/SBC
Temporal Coverage
2005-09-01T13:06:28Z/2005-09-13T12:04:37Z
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, Zheng comma Wei, 2006, 'Properties of the Intergalactic Medium near the Epoch of HeII Reionization', 1.0, European Space Agency, https://doi.org/10.5270/esa-83aqny8