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R. Srianand
R. Srianand
IUCAA
Email verificata su iucaa.in
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Limits on the time variation of the electromagnetic fine-structure constant in the low energy limit from absorption lines in the spectra of distant quasars
R Srianand, H Chand, P Petitjean, B Aracil
Physical Review Letters 92 (12), 121302, 2004
4612004
The Very Large Telescope Ultraviolet and Visible Echelle Spectrograph survey for molecular hydrogen in high-redshift damped Lyman α systems
C Ledoux, P Petitjean, R Srianand
Monthly Notices of the Royal Astronomical Society 346 (1), 209-228, 2003
3892003
Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample
H Chand, R Srianand, P Petitjean, B Aracil
Astronomy & Astrophysics 417 (3), 853-871, 2004
3622004
Evolution of the cosmological mass density of neutral gas from Sloan Digital Sky Survey II–Data Release 7
P Noterdaeme, P Petitjean, C Ledoux, R Srianand
Astronomy & Astrophysics 505 (3), 1087-1098, 2009
3602009
Molecular hydrogen in high-redshift damped Lyman-α systems: the VLT/UVES database
P Noterdaeme, C Ledoux, P Petitjean, R Srianand
Astronomy & Astrophysics 481 (2), 327-336, 2008
2842008
Velocity-metallicity correlation for high-z DLA galaxies: evidence of a mass-metallicity relation?
C Ledoux, P Petitjean, JPU Fynbo, P Møller, R Srianand
Astronomy & Astrophysics 457 (1), 71-78, 2006
2822006
The cosmic microwave background radiation temperature at a redshift of 2.34
R Srianand, P Petitjean, C Ledoux
Nature 408 (6815), 931-935, 2000
2772000
The evolution of the cosmic microwave background temperature-measurements of TCMB at high redshift from carbon monoxide excitation
P Noterdaeme, P Petitjean, R Srianand, C Ledoux, S López
Astronomy & Astrophysics 526, L7, 2011
2172011
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman α systems: physical conditions in the neutral gas
R Srianand, P Petitjean, C Ledoux, G Ferland, G Shaw
Monthly Notices of the Royal Astronomical Society 362 (2), 549-568, 2005
2152005
Molecular hydrogen and the nature of damped Lyman-alpha systems
P Petitjean, R Srianand, C Ledoux
arXiv preprint astro-ph/0011437, 2000
2112000
Discovery of a point-like very-high-energy γ-ray source in Monoceros
FA Aharonian, AG Akhperjanian, AR Bazer-Bachi, B Behera, M Beilicke, ...
Astronomy & Astrophysics 469 (1), L1-L4, 2007
2042007
First detection of CO in a high-redshift damped Lyman-α system
R Srianand, P Noterdaeme, C Ledoux, P Petitjean
Astronomy & Astrophysics 482 (3), L39-L42, 2008
1952008
Dust-depletion sequences in damped Lyman-α absorbers-A unified picture from low-metallicity systems to the Galaxy
A De Cia, C Ledoux, L Mattsson, P Petitjean, R Srianand, I Gavignaud, ...
Astronomy & Astrophysics 596, A97, 2016
1772016
A new constraint on the time dependence of the proton-to-electron mass ratio-Analysis of the Q 0347-383 and Q 0405-443 spectra
A Ivanchik, P Petitjean, D Varshalovich, B Aracil, R Srianand, H Chand, ...
Astronomy & Astrophysics 440 (1), 45-52, 2005
1522005
Discovery of a compact gas-rich damped Lyman-α galaxy at z= 2.2: evidence of a starburst-driven outflow
P Noterdaeme, P Laursen, P Petitjean, SD Vergani, MJ Maureira, ...
Astronomy & Astrophysics 540, A63, 2012
1422012
On the kinematics of damped Lyman-alpha systems
C Ledoux, P Petitjean, J Bergeron, EJ Wampler, R Srianand
arXiv preprint astro-ph/9806202, 1998
1421998
The UVES Large Program for testing fundamental physics I. Bounds on a change in α towards quasar HE 2217− 2818
P Molaro, M Centurión, JB Whitmore, TM Evans, MT Murphy, II Agafonova, ...
Astronomy & Astrophysics 555, A68, 2013
1352013
A translucent interstellar cloud at z= 2.69-CO, H2, and HD in the line-of-sight to SDSS J123714. 60+ 064759.5
P Noterdaeme, P Petitjean, C Ledoux, S López, R Srianand, SD Vergani
Astronomy & Astrophysics 523, A80, 2010
1352010
Molecular hydrogen at zabs=1.973 toward Q 0013−004: dust depletion pattern in damped Lyman α systems
P Petitjean, R Srianand, C Ledoux
Monthly Notices of the Royal Astronomical Society 332 (2), 383-391, 2002
1322002
The redshift evolution of escape fraction of hydrogen ionizing photons from galaxies
V Khaire, R Srianand, TR Choudhury, P Gaikwad
Monthly Notices of the Royal Astronomical Society 457 (4), 4051-4062, 2016
1292016
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