A Complete Atlas of Recalibrated Hubble Space Telescope Faint Object Spectrograph Spectra of Active Galactic Nuclei and Quasars. I. Pre-COSTAR Spectra
Evidence for a quasar in the radio galaxy Cygnus A from observation of broad-line emission
Observations of O I and Ca II Emission Lines in Quasars: Implications for the Site of Fe II Line Emission
The Redshifted Excess in Quasar C IV Broad Emission Lines
Instrument
FOS/BL, FOS/RD
Temporal Coverage
1993-05-23T13:23:50Z/1993-05-23T23:25:34Z
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, Antonucci comma Robert, 1994, 'THE EXTENDED FEATURELESS CONTINUUM SOURCE IN CYGNUS A - CYCLE 1 SPECTROSCOPIC FOLLOW-UP', 1.0, European Space Agency, https://doi.org/10.5270/esa-d5r2meo