246 citations · 2.4k across the 44 of their papers we have counts for
8 papers · 1 filter
A Cold Nearby Cloud Inside the Local Bubble
David M. Meyer, J. T. Lauroesch, Carl Heiles +2
The high-latitude Galactic H I cloud toward the extragalactic radio source 3C 225 is characterized by very narrow 21 cm emission and absorption indicative of a very low H I spin te…
The nature of damped Lyman alpha and sub-damped Lyman alpha absorbers
Pushpa Khare, Varsha P. Kulkarni, Celine Peroux +3
We present arguments based on the measured abundances in individual damped Lyman alpha systems (DLAs) and sub-damped Lyman alpha systems (sub-DLAs), and also the average abundances…
The Role of Sub-damped Lyman-alpha Absorbers in the Cosmic Evolution of Metals
V. P. Kulkarni, P. Khare, C. Peroux +3
Observations of low mean metallicity of damped Lyman-alpha (DLA) quasar absorbers at all redshifts studied appear to contradict the predictions for the global mean interstellar met…
Metal-rich Damped/sub-Damped Lyman-alpha Quasar Absorbers at z<1
C. Peroux, J. D. Meiring, V. P. Kulkarni +5
Damped Lyman-alpha absorbers (DLAs), seen in absorption against a background quasar, provide the most detailed probes available of element abundances in the Universe over > 90 % of…
The Interstellar N/O Abundance Ratio: Evidence for Local Infall?
David C. Knauth, James T. Lauroesch, David M. Meyer
Sensitive measurements of the interstellar gas-phase oxygen abundance have revealed a slight oxygen deficiency ( 15%) toward stars within 500 pc of the Sun as compared to mor…
Elemental Abundance Measurements in Low-redshift Damped Lyman Alpha Absorbers
Joseph D. Meiring, Varsha P. Kulkarni, Pushpa Khare +6
We present elemental abundance measurements for 9 damped Ly-alpha systems (DLAs) and 1 sub-DLA at 0.1 < z < 1.5 from recent observations with the Multiple Mirror Telescope. Most of…