745 citations · 2.9k across the 28 of their papers we have counts for
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A High-Velocity Narrow Absorption Line Outflow in the Quasar J212329.46-005052.9
F. Hamann, N. Kanekar, J. X. Prochaska +5
We report on a variable high-velocity narrow absorption line outflow in the redshift 2.3 quasar J2123-0050. Five distinct outflow systems are detected with velocity shifts from -97…
Cosmological concordance or chemical coincidence? Deuterated molecular hydrogen abundances at high redshift
J. Tumlinson, A. L. Malec, R. F. Carswell +8
We report two detections of deuterated molecular hydrogen (HD) in QSO absorption-line systems at . Toward J2123-0500, we find (HD) for a sub-DLA with me…
Ionization corrections in a multi-phase interstellar medium: Lessons from a z~2 sub-DLA
Nikola Milutinovic, Sara L. Ellison, J. Xavier Prochaska +1
We present a high resolution (FWHM=2.7 km/s), high S/N echelle spectrum for the z = 2.26 QSO J2123-0050 and determine elemental abundances for the z = 2.06 sub-DLA in its line of s…
New limit on a varying proton-to-electron mass ratio from high-resolution optical quasar spectra
Adrian L. Malec, Ruth Buning, Michael T. Murphy +7
Molecular transitions recently discovered at redshift z_abs=2.059 toward the bright background quasar J2123-0050 are analysed to limit cosmological variation in the proton-to-elect…
Keck telescope constraint on cosmological variation of the proton-to-electron mass ratio
Adrian L. Malec, Ruth Buning, Michael T. Murphy +7
Molecular transitions recently discovered at redshift z_abs=2.059 toward the bright background quasar J2123-0050 are analysed to limit cosmological variation in the proton-to-elect…