Results 181 to 190 of about 10,836 (194)

The Hubble Space Telescope quasar absorption line key project. II - Data calibration and absorption-line selection

Astrophysical Journal, Supplement Series, 1993
Buell T Jannuzi
exaly  

On the emergence of thousands of absorption lines in the quasar PG 1411+442: a clumpy high-column density outflow from the broad emission-line region?

Monthly Notices of the Royal Astronomical Society, 2019
Frederick Hamann, Todd M Tripp, David Rupke   +2 more
exaly  

A strong redshift dependence of the broad absorption line quasar fraction

Monthly Notices of the Royal Astronomical Society, 2011
Natasha Maddox, Gordon T Richards, Paul C Hewett   +2 more
exaly  

Detection of intergalactic ionized helium absorption in a high-redshift quasar

Nature, 1994
exaly  

Hot galactic gas and narrow line quasar absorption systems

Nature, 1982
exaly  

Broad absorption line disappearance and emergence using multiple-epoch spectroscopy from the Sloan Digital Sky Survey

Monthly Notices of the Royal Astronomical Society, 2017
N Filiz Ak, Patrick Hall
exaly  

Discovery of a quadruply lensed quasar: the 'clover leaf H1413 + 117

Nature, 1988
exaly  

Disturbed neutral hydrogen in the galaxy NGC3067 pointing to the quasar 3C232

Nature, 1989
exaly  

Keck High Resolution Spectroscopy of PKS 0123+257: Intrinsic Absorption in a Radio-Loud Quasar

Astronomical Journal, 1997
exaly  

A variable P舁v broad absorption line and quasar outflow energetics

Monthly Notices of the Royal Astronomical Society, 2014
exaly