Spectral shape of the UV ionizing background and He II absorption at redshifts 1.8 < z < 2.9
The EUV variability of the luminous QSO HS 1700+6416
The He II Post-reionization Epoch: HST/COS Observations of the Quasar HS1700+6416
The UV spectrum of HS 1700+6416. II. FUSE observations of the He II Lyman alpha forest
Instrument
STIS, STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA
Temporal Coverage
2003-05-14T08:24:18Z/2003-05-18T02:36:29Z
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, Reimers comma Dieter, 2003, 'Intergalactic-Ionized Helium toward HS 1700+6416 at maximum QSO brightness', 1.0, European Space Agency, https://doi.org/10.5270/esa-08cg35s