| Indication of a Cosmological Variation of the Proton-Electron Mass Ratio Based on Laboratory Measurement and Reanalysis of H2 Spectra E Reinhold, R Buning, U Hollenstein, A Ivanchik, P Petitjean, W Ubachs Physical Review Letters 96 (15), 151101, 2006 | 368 | 2006 |
| 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 and Astrophysics 440 (1), 45-52, 2005 | 152 | 2005 |
| High resolution spectroscopy of faint objects at the 6-m telescope VE Panchuk, JD Najdenov, VG Klochkova, AV Ivanchik, SV Yermakov, ... Bull. Spec. Astrophys. Obs. RAS 44, 127, 1998 | 101 | 1998 |
| Do the fundamental constants vary in the course of cosmological evolution? AV Ivanchik, E Rodriguez, P Petitjean, DA Varshalovich Astronomy Letters 28, 423-427, 2002 | 97 | 2002 |
| HD molecular lines in an absorption system at redshift z=2.3377 DA Varshalovich, AV Ivanchik, P Petitjean, R Srianand, C Ledoux Astronomy Letters 27, 683-685, 2001 | 90 | 2001 |
| Absorption systems in the spectra of the QSOs HS 1946+76, S5 0014+81, and S4 0636+68: New constraints on cosmological variation of the fine-structure constant DA Varshalovich, VE Panchuk, AV Ivanchik Astronomy Letters 22 (1), 6-13, 1996 | 90 | 1996 |
| The fine-structure constant: a new observational limit on its cosmological variation and some theoretical consequences AV Ivanchik, AY Potekhin, DA Varshalovich Astronomy and Astrophysics 343, 439-445, 1999 | 86 | 1999 |
| 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, R Srianand, A Ivanchik Astronomy and Astrophysics 491 (2), 397-400, 2008 | 77 | 2008 |
| HD molecules at high redshift: the absorption system at z = 2.3377 towards Q 1232 + 082 AV Ivanchik, P Petitjean, SA Balashev, R Srianand, DA Varshalovich, ... Monthly Notices of the Royal Astronomical Society 404 (3), 1583-1590, 2010 | 74 | 2010 |
| Rapid HeII->HeI recombination and radiation arising from this process EE Kholupenko, AV Ivanchik, DA Varshalovich Monthly Notices of the Royal Astronomical Society: Letters 378 (1), L39-L43, 2007 | 74 | 2007 |
| Does the proton-to-electron mass ratio μ = mp/me vary in the course of cosmological evolution? A Ivanchik, P Petitjean, E Rodriguez, D Varshalovich Astrophysics and Space Science 283 (4), 583-588, 2003 | 71 | 2003 |
| CO-dark molecular gas at high redshift: very large H2 content and high pressure in a low-metallicity damped Lyman alpha system SA Balashev, P Noterdaeme, H Rahmani, VV Klimenko, C Ledoux, ... Monthly Notices of the Royal Astronomical Society 470 (3), 2890-2910, 2017 | 69 | 2017 |
| Two-photon 2s ↔ 1s transitions during hydrogen recombination in the universe EE Kholupenko, AV Ivanchik Astronomy Letters 32 (12), 795-803, 2006 | 68 | 2006 |
| Partial coverage of the broad-line region of Q1232+082 by an intervening H2-bearing cloud SA Balashev, P Petitjean, AV Ivanchik, C Ledoux, R Srianand, ... Monthly Notices of the Royal Astronomical Society 418 (1), 357-369, 2011 | 67 | 2011 |
| Testing Cosmological Variability of the Proton-to-Electron Mass Ratio Using the Spectrum of PKS 0528–250 AY Potekhin, AV Ivanchik, DA Varshalovich, KM Lanzetta, JA Baldwin, ... The Astrophysical Journal 505 (2), 523, 1998 | 67 | 1998 |
| The primordial deuterium abundance: subDLA system at zabs = 2.437 towards the QSO J 1444+2919 SA Balashev, EO Zavarygin, AV Ivanchik, KN Telikova, DA Varshalovich Monthly Notices of the Royal Astronomical Society 458 (2), 2188-2198, 2016 | 63 | 2016 |
| HD/H2 molecular clouds in the early Universe: The problem of primordial deuterium SA Balashev, AV Ivanchik, DA Varshalovich Astronomy Letters 36 (11), 761-772, 2010 | 57 | 2010 |
| Molecular hydrogen absorption systems in Sloan Digital Sky Survey SA Balashev, VV Klimenko, AV Ivanchik, DA Varshalovich, P Petitjean, ... Monthly Notices of the Royal Astronomical Society 440 (1), 225-239, 2014 | 53 | 2014 |
| Neutral chlorine and molecular hydrogen at high redshift SA Balashev, P Noterdaeme, VV Klimenko, P Petitjean, R Srianand, ... Astronomy & Astrophysics 575, L8, 2015 | 44 | 2015 |
| X-shooter observations of strong H2-bearing DLAs at high redshift SA Balashev, VV Klimenko, P Noterdaeme, JK Krogager, ... Monthly Notices of the Royal Astronomical Society 490 (2), 2668-2678, 2019 | 40 | 2019 |
