105 citations
- University of ChicagoUS7 papers
- Fermi National Accelerator LaboratoryUS6 papers
- University of LouisvilleUS5 papers
- University of South CarolinaUS5 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Columbia UniversityUS3 papers
- Laboratoire d’Astrophysique de MarseilleFR3 papers
- Johns Hopkins UniversityUS2 papers
- Pennsylvania State UniversityUS2 papers
- S.N. Bose National Centre for Basic SciencesIN2 papers
- University of Illinois Urbana-ChampaignUS2 papers
- York UniversityCA2 papers
5 papers · 1 filter
Detecting cold gas at intermediate redshifts: GMRT survey using Mg II systems
Neeraj Gupta, R. Srianand, P. Petitjean +3
Intervening HI 21-cm absorption systems at z > 1.0 are very rare and only 4 confirmed detections have been reported in the literature. Despite their scarcity, they provide interest…
Moduli and (un)attractor black hole thermodynamics
Dumitru Astefanesei, Kevin Goldstein, Swapna Mahapatra
We investigate four-dimensional spherically symmetric black hole solutions in gravity theories with massless, neutral scalars non-minimally coupled to gauge fields. In the non-extr…
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…