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Number of items: 79.

Stalin, C. S. ; Srianand, R. ; Petitjean, P. (2011) X-ray and optical properties of broad absorption line quasars in the Canada-France-Hawaii telescope legacy survey Monthly Notices of the Royal Astronomical Society, 413 (2). pp. 1013-1023. ISSN 0035-8711

Muzahid, S. ; Srianand, R. ; Petitjean, P. (2011) Revisiting the He II to H I ratio in the intergalactic medium Monthly Notices of the Royal Astronomical Society, 410 (4). pp. 2193-2202. ISSN 0035-8711

Noterdaeme, P. ; Petitjean, P. ; Srianand, R. ; Ledoux, C. ; Lopez, S. (2011) The evolution of the cosmic microwave background temperature. Measurements of TCMB at high redshift from carbon monoxide excitation Astronomy and Astrophysics, 526 (L7). L7.1-L7.4. ISSN 0004-6361

Jose, Charles ; Samui, Saumyadip ; Subramanian, Kandaswamy ; Srianand, Raghunathan (2011) Weighing neutrinos using high redshift galaxy luminosity functions Physical Review D - Particles, Fields, Gravitation and Cosmology, 83 (12). 123518_1-123518_12. ISSN 1550-7998

Bielby, R. M. ; Finoguenov, A. ; Tanaka, M. ; McCracken, H. J. ; Daddi, E. ; Hudelot, P. ; Ilbert, O. ; Kneib, J. P. ; Le Fevre, O. ; Mellier, Y. ; Nandra, K. ; Petitjean, P. ; Srianand, R. ; Stalin, C. S. ; Willott, C. J. (2010) The WIRCAM deep infrared cluster survey I. Groups and clusters at z 1.1 Astronomy and Astrophysics, 523 (A66). A66.1-A66.22. ISSN 0004-6361

Noterdaeme, P. ; Petitjean, P. ; Ledoux, C. ; Lopez, S. ; Srianand, R. ; Vergani, S. D. (2010) A translucent interstellar cloud at z = 2.69: CO, H2, and HD in the line-of-sight to SDSSJ123714.60 + 064759.5 Astronomy and Astrophysics, 523 (A80). A80.1-A80.17. ISSN 0004-6361

Rahmani, H. ; Srianand, R. ; Noterdaeme, P. ; Petitjean, P. (2010) The Lyman α emission of high-z damped Lyman α systems Monthly Notices of the Royal Astronomical Society: Letters, 409 (1). L59-L63. ISSN 1745-3925

Gupta, N. ; Srianand, R. ; Bowen, D. V. ; York, D. G. ; Wadadekar, Y. (2010) GMRT mini-survey to search for 21-cm absorption in quasar-galaxy pairs at z ∼ 0.1 Monthly Notices of the Royal Astronomical Society, 408 (2). pp. 849-864. ISSN 0035-8711

Srianand, R. ; Gupta, N. ; Petitjean, P. ; Noterdaeme, P. ; Ledoux, C. (2010) Detection of 21-cm, H2 and deuterium absorption at z > 3 along the line of sight to J1337+3152 Monthly Notices of the Royal Astronomical Society, 405 (3). pp. 1888-1900. ISSN 0035-8711

Aghaee, A. ; Petitjean, P. ; Srianand, R. ; Stalin, C. S. ; Guimarães, R. (2010) Determination of the mean HI absorption of the intergalactic medium Journal of Astrophysics and Astronomy, 31 (2). pp. 59-79. ISSN 0250-6335

Ivanchik, A. V. ; Petitjean, P. ; Balashev, S. A. ; Srianand, R. ; Varshalovich, D. A. ; Ledoux, C. ; Noterdaeme, P. (2010) HD molecules at high redshift: the absorption system at z = 2.3377 towards Q 1232 + 082 Monthly Notices of the Royal Astronmical Society, 404 (3). pp. 1583-1590. ISSN 0035-8711

Noterdaeme, P. ; Srianand, R. ; Mohan, V. (2010) Quasars probing intermediate-redshift star-forming galaxies Monthly Notices of the Royal Astronomical Society, 403 (2). pp. 906-919. ISSN 0035-8711

Samui, Saumyadip ; Subramanian, Kandaswamy ; Srianand, Raghunathan (2010) Cosmic ray driven outflows from high-redshift galaxies Monthly Notices of the Royal Astronomical Society, 402 (4). pp. 2778-2791. ISSN 0035-8711

Stalin, C. S. ; Petitjean, Patrick ; Srianand, R. ; Fox, A. J. ; Coppolani, F. ; Schwope, A. (2009) Optical identification of XMM sources in the Canada-France-Hawaii telescope legacy survey Monthly Notices of the Royal Astronomical Society, 401 (1). pp. 294-306. ISSN 0035-8711

Vivek, M. ; Srianand, R. ; Noterdaeme, P. ; Mohan, V. ; Kuriakosde, V. C. (2009) SDSSJ092712.64+294344.0: recoiling blackhole or merging galaxies? Monthly Notices of the Royal Astronomical Society: Letters, 400 (1). L6-L9. ISSN 1745-3925

Noterdaeme, P. ; Petitjean, P. ; Ledoux, C. ; Srianand, R. (2009) Evolution of the cosmological mass density of neutral gas from sloan digital sky survey II - Data Release Astronomy and Astrophysics, 505 (3). pp. 1087-1098. ISSN 0004-6361

Samui, Saumyadip ; Subramanian, Kandaswamy ; Srianand, Raghunathan (2009) Models of high redshift luminosity functions and galactic outflows: The dependence on halo mass function New Astronomy, 14 (7). pp. 591-603. ISSN 1384-1076

Noterdaeme, P. ; Ledoux, C. ; Srianand, R. ; Petitjean, P. ; Lopez, S. (2009) Diffuse molecular gas at high redshift - Detection of CO molecules and the 2175 Å dust feature at z = 1.64 Astronomy and Astrophysics, 503 (3). pp. 765-770. ISSN 0004-6361

Fox, A. J. ; Prochaska, J. X. ; Ledoux, C. ; Petitjean, P. ; Wolfe, A. M. ; Srianand, R. (2009) Metal-enriched plasma in protogalactic halos - A survey of N V absorption in high-z damped and sub-damped Lyman-α systems Astronomy and Astrophysics, 503 (3). pp. 731-746. ISSN 0004-6361

Gupta, N. ; Srianand, R. ; Petitjean, P. ; Noterdaeme, P. ; Saikia, D. J. (2009) A complete sample of 21-cm absorbers at z ∼ 1.3: Giant metrewave radio telescope survey using Mg II systems Monthly Notices of the Royal Astronomical Society, 398 (1). pp. 201-220. ISSN 0035-8711

Samui, Saumyadip ; Srianand, Raghunathan ; Subramanian, Kandaswamy (2009) Understanding the redshift evolution of the luminosity functions of Lyman-α emitters Monthly Notices of the Royal Astronomical Society, 398 (4). pp. 2061-2068. ISSN 0035-8711

Fox, Andrew J. ; Petitjean, Patrick ; Ledoux, Cedric ; Srianand, Raghunathan (2009) Studying hot gas using the ultraviolet: High ions in galactic halos Astrophysics and Space Science, 320 (1-3). pp. 27-30. ISSN 0004-640X

Srianand, R. ; Petitjean, P. ; Chand, H. ; Noterdaeme, P. ; Gupta, N. (2009) Probing the variation of fundamental constants using QSO absorption lines Memorie della Società Astronomica Italiana, 80 (4). pp. 842-849. ISSN 0037-8720

Polletta, M. ; Omont, A. ; Berta, S. ; Bergeron, J. ; Stalin, C. S. ; Petitjean, P. ; Giorgetti, M. ; Trinchieri, G. ; Srianand, R. ; McCracken, H. J. ; Pei, Y. ; Dannerbauer, H. (2008) Obscured and powerful AGN and starburst activities at z ∼ 3.5 Astronomy and Astrophysics, 492 (1). pp. 81-92. ISSN 0004-6361

Srianand, R. ; Gupta, N. ; Petitjean, P. ; Noterdaeme, P. ; Saikia, D. J. (2008) Detection of the 2175 Å extinction feature and 21-cm absorption in two Mg II systems at z ∼ 1.3 Monthly Notices of the Royal Astronomical Society: Letters, 391 (1). L69-L73. ISSN 1745-3925

Noterdaeme, P. ; Petitjean, P. ; Ledoux, C. ; Srianand, R. ; Ivanchik, A. (2008) HD molecules at high redshift - A low astration factor of deuterium in a solar-metallicity DLA system at z = 2.418 Astronomy and Astrophysics, 491 (2). pp. 397-400. ISSN 0004-6361

Srianand, R. ; Noterdaeme, P. ; Ledoux, C. ; Petitjean, P. (2008) First detection of CO in a high-redshift damped Lyman-αsystem Astronomy and Astrophysics, 482 (3). L39-L42. ISSN 0004-6361

Noterdaeme, P. ; Ledoux, C. ; Petitjean, P. ; Srianand, R. (2008) Molecular hydrogen in high-redshift damped Lyman-αsystems: the VLT/UVES database Astronomy and Astrophysics, 481 (2). pp. 327-336. ISSN 0004-6361

Samui, Saumyadip ; Subramanian, Kandaswamy ; Srianand, Raghunathan (2008) Constrained semi-analytical models of galactic outflows Monthly Notices of the Royal Astronomical Society, 385 (2). pp. 783-808. ISSN 0035-8711

Petitjean, P. ; Ledoux, C. ; Srianand, R. (2008) The nitrogen and oxygen abundances in the neutral gas at high redshift Astronomy and Astrophysics, 480 (2). pp. 349-357. ISSN 0004-6361

Shaw, Gargi ; Ferland, G. J. ; Srianand, R. ; Abel, N. P. ; van Hoof, P. A. M. ; Stancil, P. C. (2008) On the enhanced cosmic-ray ionization rate in the diffuse cloud toward ζ persei The Astrophysical Journal, 675 (1). pp. 405-412. ISSN 0004-637X

Noterdaeme, P. ; Ledoux, C. ; Petitjean, P. ; Le Petit, F. ; Srianand, R. ; Smette, A. (2007) Excitation mechanisms in newly discovered H2-bearing damped Lyman-α clouds:systems with low molecular fractions Astronomy and Astrophysics, 474 (2). pp. 393-407. ISSN 0004-6361

Fox, A. J. ; Ledoux, C. ; Petitjean, P. ; Srianand, R. (2007) C IV absorption in damped and sub-damped Lyman-αsystems: Correlations with metallicity and implications for galactic winds at z ≈ 2-3 Astronomy and Astrophysics, 473 (3). pp. 791-803. ISSN 0004-6361

Noterdaeme, P. ; Petitjean, P. ; Srianand, R. ; Ledoux, C. ; Le Petit, F. (2007) Physical conditions in the neutral interstellar medium at z = 2.43 toward Q 2348-011 Astronomy and Astrophysics, 469 (2). pp. 425-436. ISSN 0004-6361

Guimarães, R. ; Petitjean, P. ; Rollinde, E. ; De Carvalho, R. R. ; Djorgovski, S. G. ; Srianand, R. ; Aghaee, A. ; Castro, S. (2007) Evidence for overdensity around zem > 4 quasars from the proximity effect Monthly Notices of the Royal Astronomical Society, 377 (2). pp. 657-666. ISSN 0035-8711

Fox, A. J. ; Petitjean, P. ; Ledoux, C. ; Srianand, R. (2007) Hot halos around high redshift protogalaxies Observations of Ovi and Nv absorption in damped Lyman-αsystems Astronomy and Astrophysics, 465 (1). pp. 171-184. ISSN 0004-6361

Samui, Saumyadip ; Srianand, Raghunathan ; Subramanian, Kandaswamy (2007) Probing the star formation history using the redshift evolution of luminosity functions Monthly Notices of the Royal Astronomical Society, 377 (1). pp. 285-299. ISSN 0035-8711

Srianand, Raghunathan ; Gupta, Neeraj ; Petitjean, Patrick (2007) Multiwavelength investigation of a near-solar metallicity sub-DLA at zabs= 1.3647 towards PKS 0237-233 Monthly Notices of the Royal Astronomical Society, 375 (2). pp. 584-594. ISSN 0035-8711

Gupta, Neeraj ; Srianand, R. ; Petitjean, P. ; Khare, P. ; Saikia, D. J. ; York, D. G. (2007) Detecting cold gas at intermediate redshifts: Giant metrewave radio telescope survey using Mg II systems The Astrophysical Journal Letters, 654 (2). L111-L114. ISSN 2041-8213

Fox, Andrew J. ; Petitjean, Patrick ; Ledoux, Cédric ; Srianand, Raghunathan (2007) Multiphase plasma in sub-damped Lyα systems: A hidden metal reservoir The Astrophysical Journal Letters, 668 (1). L15-L18. ISSN 0571-7248

Ledoux, C. ; Petitjean, P. ; Fynbo, J. P. U. ; Møller, P. ; Srianand, R. (2006) Velocity-metallicity correlation for high-z DLA galaxies: evidence of a mass-metallicity relation? Astronomy and Astrophysics, 457 (1). pp. 71-78. ISSN 0004-6361

Petitjean, P. ; Ledoux, C. ; Noterdaeme, P. ; Srianand, R. (2006) Metallicity as a criterion to select H2-bearing damped Lyman-αsystems Astronomy and Astrophysics, 456 (3). L9-L12. ISSN 0004-6361

Srianand, R. (2006) Molecular hydrogen at high redshift Proceedings of the International Astronomical Union, 1 . pp. 319-323. ISSN 1743-9213

Chand, H. ; Srianand, R. ; Petitjean, P. ; Aracil, B. ; Quast, R. ; Reimers, D. (2006) Variation of the fine-structure constant: very high resolution spectrum of QSO HE 0515-4414 Astronomy and Astrophysics, 451 (1). pp. 45-56. ISSN 0004-6361

Heinmüller, J. ; Petitjean, P. ; Ledoux, C. ; Caucci, S. ; Srianand, R. (2006) Kinematics and star formation activity in the zabs = 2.03954 damped Lyman-α system towards PKS 0458-020 Astronomy and Astrophysics, 449 (1). pp. 33-39. ISSN 0004-6361

Rodríguez, E. ; Petitjean, P. ; Aracil, B. ; Ledoux, C. ; Srianand, R. (2006) Relative abundance pattern along the profile of high redshift Damped Lyman-α systems Astronomy and Astrophysics, 446 (3). pp. 791-804. ISSN 0004-6361

Roy, Nirupam ; Chengalur, Jayaram N. ; Srianand, Raghunathan (2006) A multiwavelength investigation of the temperature of the cold neutral medium Monthly Notices of the Royal Astronomical Society: Letters, 365 (1). L1-L5. ISSN 1745-3925

Srianand, Raghunathan (2006) Intergalactic medium Proceedings of the International Astronomical Union, 1 . pp. 130-139. ISSN 1743-9213

Shaw, Gargi ; Ferland, G. J. ; Srianand, R. ; Abel, N. P. (2006) Physical conditions in the interstellar medium toward HD 185418 The Astrophysical Journal, 639 (2). pp. 941-950. ISSN 0004-637X

Srianand, R. ; Petitjean, P. ; Ledoux, C. ; Ferland, G. ; Shaw, G. (2005) Molecular hydrogen at high-z: physical conditions in protogalaxies Proceedings of the International Astronomical Union, 1 . pp. 168-173. ISSN 1743-9213

Chand, H. ; Srianand, R. ; Petitjean, P. ; Aracil, B. (2005) Probing the variation of the fine-structure constant using QSO absorption lines Proceedings of the International Astronomical Union, 1 . pp. 409-411. ISSN 1743-9213

Ledoux, Cedric ; Petitjean, Patrick ; Moller, Palle ; Fynbo, Johan ; Srianand, R. (2005) The mass-metallicity relation for high-redshift damped Lyα galaxies Proceedings of the International Astronomical Union, 1 . pp. 433-435. ISSN 1743-9213

Ivanchik, A. ; Petitjean, P. ; Varshalovich, D. ; Aracil, B. ; Srianand, R. ; Chand, H. ; Ledoux, C. ; Boisse, P. (2005) 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 Astronomy and Astrophysics, 440 (1). pp. 45-52. ISSN 0004-6361

Gupta, Neeraj ; Srianand, R. ; Saikia, D. J. (2005) Outflowing material in the compact steep-spectrum source quasar 3C 48: evidence of jet-cloud interaction? Monthly Notices of the Royal Astronomical Society, 361 (2). pp. 451-459. ISSN 0035-8711

Srianand, Raghunathan ; Petitjean, Patrick ; Ledoux, Cedric ; Ferland, Gary ; Shaw, Gargi (2005) The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman α systems: physical conditions in the neutral gas Monthly Notices of the Royal Astronomical Society, 362 (2). pp. 549-568. ISSN 0035-8711

Rollinde, Emmanuel ; Srianand, Raghunathan ; Theuns, Tom ; Petitjean, Patrick ; Chand, Hum (2005) The density structure around quasars from optical depth statistics Monthly Notices of the Royal Astronomical Society, 361 (3). pp. 1015-1029. ISSN 0035-8711

Stalin, C. S. ; Srianand, R. (2005) Long-term optical photometric monitoring of the quasar SDSS J153259.96-003944.1 Monthly Notices of the Royal Astronomical Society, 359 (3). pp. 1022-1028. ISSN 0035-8711

Chand, H. ; Petitjean, P. ; Srianand, R. ; Aracil, B. (2005) Probing the time-variation of the fine-structure constant: Results based on Si IV doublets from a UVES sample Astronomy and Astrophysics, 430 (1). pp. 47-58. ISSN 0004-6361

Theuns, Tom ; Srianand, Raghunathan (2005) ELT requirements for future observations of the intergalactic medium Proceedings of the International Astronomical Union, 1 . pp. 464-471. ISSN 1743-9213

Petitjean, Patrick ; Ivanchik, A. ; Srianand, Raghunathan ; Aracil, B. ; Varshalovich, D. ; Chand, H. ; Rodriguez, Esther ; Ledoux, C. ; Boissé, Patrick (2004) Time dependence of the proton-to-electron mass ratio Comptes Rendus Physique, 5 (3). pp. 411-415. ISSN 1631-0705

Srianand, R. ; Chand, H. ; Petitjean, P. ; Aracil, B. (2004) 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 Physical Review Letters, 92 (12). pp. 121302-121305. ISSN 0031-9007

Chand, H. ; Srianand, R. ; Petitjean, P. ; Aracil, B. (2004) Probing the cosmological variation of the fine-structure constant: results based on VLT-UVES sample Astronomy and Astrophysics, 417 (3). pp. 853-871. ISSN 0004-6361

Ellison, S. L. ; Ibata, R. ; Pettini, M. ; Lewis, G. F. ; Araci, B. ; Petitjean, P. ; Srianand, R. (2004) The sizes and kinematic structure of absorption systems towards the lensed quasar APM08279+5255 Astronomy and Astrophysics, 414 (1). pp. 79-93. ISSN 0004-6361

Ledoux, Cédric ; Petitjean, Patrick ; Srianand, R. (2003) The very large telescope ultraviolet and visible echelle spectrograph survey for molecular hydrogen in high-redshift damped Lyman αsystems Monthly Notices of the Royal Astronomical Society, 346 (1). pp. 209-228. ISSN 1745-3925

Gupta, N. ; Srianand, R. ; Petitjean, P. ; Ledoux, C. (2003) Outflowing material in the zem = 4.92 BAL QSO SDSS J160501.21-011220.0 Astronomy and Astrophysics, 406 (1). pp. 65-73. ISSN 0004-6361

Srianand, R. ; Petitjean, Patrick ; Ledoux, Cedric ; Hazard, Cyril (2002) A collimated flow driven by radiative pressure from the nucleus of quasar Q1511 + 091 Monthly Notices of the Royal Astronomical Society, 336 (3). pp. 753-758. ISSN 0035-8711

Roy Choudhury, T. ; Srianand, R. (2002) Probing the dark ages with redshift distribution of gamma-ray bursts Monthly Notices of the Royal Astronomical Society, 336 (2). L27-L31. ISSN 0035-8711

Lewis, Geraint F. ; Ibata, Rodrigo A. ; Ellison, Sara L. ; Aracil, Bastien ; Petitjean, Patrick ; Pettini, Max ; Srianand, Raghunathan (2002) Spatially resolved STIS spectra of the gravitationally lensed broad absorption line quasar APM08279+5255: the nature of component C and evidence for microlensing Monthly Notices of the Royal Astronomical Society, 334 (1). L7-L10. ISSN 0035-8711

Petitjean, Patrick ; Srianand, R. ; Ledoux, Cédric (2002) Molecular hydrogen at zabs=1.973 toward Q 0013-004: dust depletion pattern in damped Lyman αsystems Monthly Notices of the Royal Astronomical Society, 332 (2). pp. 383-391. ISSN 0035-8711

Ledoux, C. ; Srianand, R. ; Petitjean, P. (2002) Detection of molecular hydrogen in a near Solar-metallicity damped Lyman- αsystem at zabs≈2 toward Q 0551-366 Astronomy and Astrophysics, 392 (3). pp. 781-789. ISSN 0004-6361

Varshalovich, D. A. ; Ivanchik, A. V. ; Petitjean, P. ; Srianand, R. ; Ledoux, C. (2001) HD molecular lines in an absorption system at redshift Z = 2.3377 Astronomy Letters, 27 (11). pp. 683-685. ISSN 1063-7737

Srianand, R. ; Petitjean, P. (2001) A near-solar metallicity damped Lyman-αsystem toward the BAL quasar Tol 1037-2703 Astronomy and Astrophysics, 373 (3). pp. 816-826. ISSN 0004-6361

Roy Choudhury, T. ; Padmanabhan, T. ; Srianand, R. (2001) Semi analytic approach to understanding the distribution of neutral hydrogen in the universe Monthly Notices of the Royal Astronomical Society, 322 (3). pp. 561-575. ISSN 0035-8711

Roy Choudhury, T. ; Srianand, R. ; Padmanabhan, T. (2001) Semi analytic approach to understanding the distribution of neutral hydrogen in the Universe: comparison of simulations with observations The Astrophysical Journal, 559 (1). p. 29. ISSN 0004-637X

Srianand, R. ; Petitjean, P. ; Ledoux, C. (2000) The cosmic microwave background radiation temperature at a redshift of 2.34 Nature, 408 (6815). pp. 931-935. ISSN 0028-0836

Srianand, R. (2000) High-resolution study of associated C IV absorption systems in NGC 5548 The Astrophysical Journal, 528 (2). pp. 617-625. ISSN 0004-637X

Srianand, R. ; Gopal-Krishna, (1998) Do the central engines of quasars evolve by accretion? Astronomy & Astrophysics, 334 . pp. 39-44. ISSN 0004-6361

Srianand, Raghunathan ; Kembhavi, Ajit (1997) Origin of the spread in the B-K color of quasars The Astronomical Journal, 478 (1). pp. 70-79. ISSN 0004-637X

Srianand, R. (1997) Radiation-induced void in the spectrum of Tol 1038-2712 The Astrophysical Journal, 478 (2). pp. 511-515. ISSN 0004-637X

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