Publications (113)
Molecular gas and star formation in an absorption-selected galaxy: Hitting the bull's eye at z = 2.46
A. Ranjan, P. Noterdaeme, J. -K. Krogager +8
The microwave background temperature at the redshift of 2.33771
R. Srianand, Patrick Petitjean, Cedric Ledoux
The mass-metallicity relation for high-redshift damped Ly-alpha galaxies
C. Ledoux, P. Petitjean, P. Moller +2
Measuring the equation of state of the high-z intergalactic medium using curvature statistics
Hamsa Padmanabhan, R. Srianand, T. Roy Choudhury
Discovery of a compact gas-rich DLA galaxy at z = 2.2: evidences for a starburst-driven outflow
P. Noterdaeme, P. Laursen, P. Petitjean +6
High resolution spectroscopy of the relatively hydrogen-poor metal rich giants in the globular cluster Omega Centauri
B. P. Hema, Gajendra Pandey, R. Srianand
Discovery of a Perseus-like cloud in the early Universe: HI-to-H2 transition, carbon monoxide and small dust grains at zabs=2.53 towards the quasar J0000+0048
P. Noterdaeme, J. -K. Krogager, S. Balashev +10
Physical conditions in the ISM towards HD185418
Gargi Shaw, G. J. Ferland, R. Srianand +1
Search for cold gas in z>2 damped Lyman-alpha systems: 21-cm and H_2 absorption
R. Srianand, N. Gupta, P. Petitjean +4
Proximate Molecular Quasar Absorbers: Excess of damped H2 systems at zabs~zQSO in SDSS DR14
P. Noterdaeme, S. Balashev, J. -K. Krogager +4
HD Molecular Lines in an Absorption System at Redshift z = 2.3377
D. Varshalovich, A. Ivanchik, P. Petitjean +2
Constraining the variation of fundamental constants at z ~ 1.3 using 21-cm absorbers
H. Rahmani, R. Srianand, N. Gupta +3
Evidence for overdensity around z_em > 4 quasars from the proximity effect
Rodney Nascimento Guimaraes, Patrick Petitjean, Emmanuel Beaumont Rollinde +5
The zabs=zem Absorption Line Systems Toward QSO J2233-606 in the Hubble Deep Field South: NeVIII770,780 absorption and partial coverage
Patrick Petitjean, R. Srianand
MALS-NOT: Identifying Radio-Bright Quasars for the MeerKAT Absorption Line Survey
J. -K. Krogager, N. Gupta, P. Noterdaeme +6
Physical conditions in the neutral interstellar medium at z=2.43 toward Q2348-011
P. Noterdaeme, P. Petitjean, R. Srianand +2
Molecular hydrogen in the z = 2.66 damped Lyman-alpha absorber toward Q J0643-5041
D. Albornoz Vásquez, H. Rahmani, P. Noterdaeme +3
Detection of the 2175Ã ~ extinction feature and 21-cm absorption in two MgII systems at z~1.3
R. Srianand, N. Gupta, P. Petitjean +2
Dynamical History of Ly αclouds
R. Srianand
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 +3
Relative abundance pattern along the profile of high redshift Damped Lyman-alpha systems
E. Rodriguez, P. Petitjean, B. Aracil +2
The UVES Large Program for Testing Fundamental Physics II: Constraints on a Change in μ Towards Quasar HE 0027-1836
H. Rahmani, M. Wendt, R. Srianand +14
Neutral atomic-carbon QSO absorption-line systems at z>1.5: Sample selection, HI content, reddening, and 2175 A extinction feature
C. Ledoux, P. Noterdaeme, P. Petitjean +1
Physical conditions in broad and associated narrow absorption-line systems toward APM 08279+5255
R. Srianand, P. Petitjean
X-ray Insights into the Nature of Quasars with Redshifted Broad Absorption Lines
Ning-Xiao Zhang, W. N. Brandt, N. S. Ahmed +8
Fundamental constants and high resolution spectroscopy
P. Bonifacio, H. Rahmani, J. B. Whitmore +14
Galaxies in HI 21-cm absorption at z<3.5
N. Gupta, R. Srianand, P. Petitjean +2
Transient C IV Broad Absorption Lines in radio detected QSOs
M. Vivek, R. Srianand, N. Gupta
Long-term optical photometric monitoring of the quasar SDSS J153259.96-003944.1
C. S. Stalin, R. Srianand
A high resolution study of intergalactic O VI absorbers at z~2.3
S. Muzahid, R. Srianand, J. Bergeron +1
The UVES Large Program for Testing Fundamental Physics: I Bounds on a change in alpha towards quasar HE 2217-2818
P. Molaro, M. Centurion, J. B. Whitmore +14
The Structure of High Redshift Galactic Halos
Sara L. Ellison, Rodrigo Ibata, Max Pettini +4
Molecular hydrogen at z=1.973 toward Q0013-004: Dust depletion pattern in damped Lyman-alpha systems
Patrick Petitjean, R. Srianand, Cédric Ledoux
Polarimetric and spectroscopic study of radio-quiet weak emission line quasars
Parveen Kumar, H. Chand, R. Srianand +3
Cold parsec-scale gas in a zabs~0.1 sub-DLA with disparate H2 and 21-cm absorption
R. Dutta, R. Srianand, S. Muzahid +3
Optical identification of XMM sources in the CFHTLS
C. S. Stalin, P. Petitjean, R. Srianand +3
Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample
H. Chand, R. Srianand, P. Petitjean +1
Semi analytic approach to understanding the distribution of neutral hydrogen in the universe: Comparison of simulations with observations
T. Roy Choudhury, R. Srianand, T. Padmanabhan
Constraining the Variation in Fine-Structure Constant Using SDSS DR8 QSO Spectra
H. Rahmani, N. Maheshwari, R. Srianand
Physical conditions in high$-$z optically thin C III absorbers: Origin of cloud sizes and associated correlations
Abhisek Mohapatra, R. Srianand, Vikram Khaire +1
Diffuse molecular gas at high redshift: Detection of CO molecules and the 2175 Ã dust feature at z=1.64
P. Noterdaeme, C. Ledoux, R. Srianand +2
Excitation mechanisms in newly discovered H2-bearing Damped Lyman-alpha clouds: systems with low molecular fractions
P. Noterdaeme, C. Ledoux, P. Petitjean +3
Probing reionization using quasar near-zones at redshift z ~ 6
Hamsa Padmanabhan, T. Roy Choudhury, R. Srianand
Rapidly varying Mg II broad absorption line in SDSS J133356.02+001229.1
M. Vivek, R. Srianand, K. S. Dawson
Metallicity as a criterion to select H2 bearing Damped Lyman-alpha systems
Patrick Petitjean, C. Ledoux, P. Noterdaeme +1
Neutral chlorine and molecular hydrogen at high redshift
S. A. Balashev, P. Noterdaeme, V. V. Klimenko +5
HD molecules at high redshift: A low astration factor of deuterium in a solar-metallicity DLA system at z=2.418
P. Noterdaeme, P. Petitjean, C. Ledoux +2
SDSS J092712.64+294344.0: recoiling black hole or merging galaxies?
M. Vivek, R. Srianand, P. Noterdaeme +2
Outflowing material in the CSS quasar 3C48: evidence of jet-cloud interaction?
Neeraj Gupta, R. Srianand, D. J. Saikia
Incidence of HI 21-cm absorption in strong FeII systems at $0.5<z<1.5$
R. Dutta, R. Srianand, N. Gupta +5
Detection of 21-cm, H2 and Deuterium absorption at z>3 along the line-of-sight to J1337+3152
R. Srianand, N. Gupta, P. Petitjean +2
Revealing HI gas in emission and absorption on pc to kpc scales in a galaxy at z ~ 0.017
N. Gupta, R. Srianand, J. S. Farnes +6
On the enhanced cosmic-ray ionization rate in the diffuse cloud towards Zeta Persei
Gargi Shaw, G. J. Ferland, R. Srianand +3
A near-solar metallicity damped Lyman-alpha system toward the BAL quasar Tol 1037-2703
R. Srianand, P. Petitjean
Multi-epoch intra-night optical monitoring of 8 radio-quiet BL Lac candidates
P. Kumar, Gopal-Krishna, C. S. Stalin +3
Velocity-Metallicity Correlation for high-z DLA Galaxies: Evidence for a Mass-Metallicity Relation?
C. Ledoux, P. Petitjean, J. P. U. Fynbo +2
The WIRCAM Deep Infrared Cluster Survey I: Groups and Clusters at z > 1.1
R. M. Bielby, A. Finoguenov, M. Tanaka +12
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 +5
The MeerKAT Absorption Line Survey (MALS)
N. Gupta, R. Srianand, W. Baan +41
Obscured and powerful AGN and starburst activities at z~3.5
M. Polletta, A. Omont, S. Berta +9
Probing the time variability of five Fe low broad absorption line quasars
M. Vivek, R. Srianand, P. Petitjean +4
Structure of the MgII and damped Lyman-alpha systems along the line of sight to APM 08279+5255
Patrick Petitjean, Bastien Aracil, R. Srianand +1
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman-alpha systems
C. Ledoux, P. Petitjean, R. Srianand
Spotting high-z molecular absorbers using neutral carbon: Results from a complete spectroscopic survey with the VLT
P. Noterdaeme, C. Ledoux, S. Zou +4
Variability in Low Ionization Broad Absorption Line Outflows
M. Vivek, R. Srianand, P. Petitjean +3
Quasars probing intermediate redshift star-forming galaxies
P. Noterdaeme, R. Srianand, V. Mohan
On the kinematics of damped Lyman-alpha systems
C. Ledoux, P. Petitjean, J. Bergeron +2
21-cm absorption from galaxies at z ~ 0.3
N. Gupta, R. Srianand, P. Noterdaeme +2
H_2 molecules in damped systems
R. Srianand, P. Petitjean, C. Ledoux
HD molecules at high redshift: The absorption system at z=2.3377 towards Q 1232+082
A. V. Ivanchik, P. Petitjean, S. A. Balashev +4
Radiation Induced Void in the Spectrum of TOL 1038-2712
R. Srianand
The elusive HI-> H2 transition in high-z damped Lyman-alpha systems
P. Noterdaeme, P. Petitjean, R. Srianand
Molecular Hydrogen in a Damped Lyman-alpha System at z_abs=4.224
C. Ledoux, P. Petitjean, R. Srianand
Evolution of the cosmological mass density of neutral gas from Sloan Digital Sky Survey II - Data Release 7
P. Noterdaeme, P. Petitjean, C. Ledoux +1
Kinematics and star formation activity in the z=2.03954 damped Lyman-alpha system towards PKS 0458-020
Janine Heinmueller, Patrick Petitjean, Cedric Ledoux +2
Molecular hydrogen and the nature of damped Lyman-alpha systems
Patrick Petitjean, R. Srianand, Cédric Ledoux
X-ray and optical properties of Broad Absorption Line Quasars in the Canada-France-Hawaii Telescope Legacy Survey
C. S. Stalin, R. Srianand, P. Petitjean
VLT/UVES observations of extremely strong intervening damped Lyman-alpha systems: Molecular hydrogen and excited carbon, oxygen and silicon at log N(HI)=22.4
P. Noterdaeme, R. Srianand, H. Rahmani +5
A complete sample of 21-cm absorbers at z~1.3: Giant Metrewave Radio Telescope Survey Using MgII Systems
N. Gupta, R. Srianand, P. Petitjean +2
Detecting cold gas at intermediate redshifts: GMRT survey using Mg II systems
Neeraj Gupta, R. Srianand, P. Petitjean +3
Analysis of Ly $α$ absorption lines in the vicinity of QSOs
R. Srianand, Pushpa Khare
Dynamically evolving Mg II broad absorption line flow in SDSS J133356.02+001229.1
M. Vivek, R. Srianand, A. Mahabal +1
21-cm absorbers at intermediate redshifts
N. Gupta, R. Srianand, P. Petitjean +2
Semi analytic approach to understanding the distribution of neutral hydrogen in the universe
T. Roy Choudhury, T. Padmanabhan, R. Srianand
GMRT mini-survey to search for 21-cm absorption in Quasar-Galaxy Pairs at z~0.1
N. Gupta, R. Srianand, D. V. Bowen +2
High resolution study of associated C IV absorption systems in NGC 5548
R. Srianand
A study of low-metallicity DLAs at high redshift and C II* as a probe of their physical conditions
R. Dutta, R. Srianand, H. Rahmani +3
The UVES Large Program for testing fundamental physics - III. Constraints on the fine-structure constant from 3 telescopes
T. M. Evans, M. T. Murphy, J. B. Whitmore +10
Probing the BLR in AGNs using time variability of associated absorption line
R. Srianand, S. Shankaranarayanan
Molecular hydrogen in high-redshift Damped Lyman-alpha systems: The VLT/UVES database
P. Noterdaeme, C. Ledoux, P. Petitjean +1
Do the central engines of quasars evolve by accretion ?
R. Srianand, Gopal-Krishna
An investigation of the line of sight towards QSO PKS 0237-233
H. Fathivavsari, P. Petitjean, C. Ledoux +4
The Sizes and Kinematic Structure of Absorption Systems Towards the Lensed Quasar APM08279+5255
Sara L. Ellison, Rodrigo Ibata, Max Pettini +4
Partial covering of emission regions of Q 0528-250 by intervening H$_2$ clouds
V. V. Klimenko, S. A. Balashev, A. V. Ivanchik +5
Molecules in the $z_{\rm abs}$~=~2.8112 damped system toward PKS~0528--250
R. Srianand, P. Petitjean
Circumnuclear and infalling HI gas in a merging galaxy pair at z=0.123
R. Srianand, N. Gupta, E. Momjian +1
The evolution of the Cosmic Microwave Background Temperature: Measurements of TCMB at high redshift from carbon monoxide excitation
P. Noterdaeme, P. Petitjean, R. Srianand +2
A new measurement of zinc metallicity in a DLA at z=3.35
Celine Peroux, Patrick Petitjean, Bastien Aracil +1
Analysis of Low z Absorbers in the QSO Spectra
R. Srianand
The Nitrogen and Oxygen abundances in the neutral gas at high redshift
Patrick Petitjean, Cedric Ledoux, R. Srianand