On variations in the fine-structure constant and stellar pollution of quasar absorption systems
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At redshifts zabs≲ 2, quasar absorption-line constraints on space–time variations in the fine-structure constant, α, rely on the comparison of Mgii and Feii transition wavelengths. One potentially important uncertainty is the relative abundance of Mg isotopes in the absorbers, which, if different from solar, can cause spurious shifts in the measured wavelengths and, therefore, α. Here we explore chemical evolution models with enhanced populations of intermediate-mass (IM) stars, which, in their asymptotic giant branch phase, are thought to be the dominant factories for heavy Mg isotopes at the low metallicities typical of quasar absorption systems. By design, these models partially explain recent Keck/HIRES evidence for a smaller α in zabs < 2 absorption clouds than on Earth. However, such models also overproduce N, violating observed abundance trends in high-zabs damped Lyman-α (DLA) systems. Our results do not support the recent claim of Ashenfelter et al. that similar models of IM-enhanced initial mass functions (IMFs) may simultaneously explain the HIRES varying-α data and DLA N abundances. We explore the effect of the IM-enhanced model on Si, Al and P abundances, finding it to be much less pronounced than for N. We also show that the 13C/12C ratio, as measured in absorption systems, could constitute a future diagnostic of non-standard models of the high-redshift IMF.
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Such a modified nucleosynthetic history will lead to an overproduction of elements such as P, Si and Al above current constraints (Fenner et al. 2005).
“However, such modified nucleosynthetic history will lead to an overproduction of elements such as P, Si, Al, P above current constraints (Fenner et al. 2005)”
From Fundamental constants: from measurement to the universe, a window on gravitation and cosmology (2025) · cites this paper as Fenner et al. 2005
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Fields, B. D., Olive, K. A., Silk, J. I., Cassé, M., & Vangioni–Flam, E. (2001) · Cited by 23 · see citing works
Chemical Evolution of Galaxies
Pagel, B. E. J. (2001) · Publications of the Astronomical Society of the Pacific · doi:10.1086/318608 · Cited by 21 · see citing works
Accurate multiconfiguration Hartree-Fock calculations of isotope shifts in C I and C IV
Carlsson, J., Jönsson, P., Godefroid, M., & Fischer, C. F. (1995) · Journal of Physics B Atomic Molecular and Optical Physics · doi:10.1088/0953-4075/28/17/012 · Cited by 19 · see citing works
Deuterium at high redshift: Primordial or evolved?
Prantzos, N., & Ishimaru, Y. (2001) · Astronomy and Astrophysics · doi:10.1051/0004-6361:20010861 · Cited by 13 · see citing works
Petitjean, P., & Aracil, B. (2004) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20041030 · Cited by 12 · see citing works
Deuterium at high redshift: Primordial or evolved?
Prantzos, N., & Ishimaru, Y. (2001) · Springer Link (Chiba Institute of Technology) · doi:10.1051/0004-6361:20010861/pdf · Cited by 11 · see citing works
Chemical Evolution of GalaxiesPreprint
(2000) · Cited by 10 · see citing works
Photometric Properties of White Dwarf Dominated Halos
Lee, H.-C., Gibson, B. K., Fenner, Y., Brook, C. B., Kawata, D., Renda, A., Holopainen, J., & Flynn, C. (2004) · Publications of the Astronomical Society of Australia · doi:10.1071/as04004 · Cited by 2 · see citing works
Self-citationPhotometric Properties of White Dwarf Dominated HalosPreprint
Gibson, B. K., Kawata, D., Lee, H., Gibson, B. K., Fenner, Y., Brook, C. B., Kawata, D., Renda, A., Holopainen, J., & Flynn, C. (2004) · Cited by 2 · see citing works
Self-citation
Flagged first, then by citations
Research works printed but not linked: 2
- Levshakov S. A., Centurion M., Molaro P., D'Odorico S., 2004, A&A, in press (astro-ph/0408188) · arXiv
- Milne E. A., 1937, Proc. R. Soc. A, 158, 324
Cited by
Sorted by citations
Varying Constants, Gravitation and Cosmology
Uzan, J. (2011) · Living Reviews in Relativity · doi:10.12942/lrr-2011-2 · Cited by 820 · see citing works
Varying Constants, Gravitation and Cosmology
Uzan, J. (2011) · DOAJ (DOAJ: Directory of Open Access Journals) · Cited by 392 · see citing works
Spatial variation in the fine-structure constant - new results from VLT/UVES
King, J. A., Webb, J. K., Murphy, M. T., Flambaum, V. V., Carswell, R. F., Bainbridge, M. B., Wilczynska, M. R., & Koch, F. E. (2012) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2012.20852.x · Cited by 261 · see citing works
Self-citationSpatial variation in the fine-structure constant - new results from VLT/UVESPreprint
King, J. A., Webb, J. K., Murphy, M. T., Flambaum, V. V., Carswell, R. F., Bainbridge, M., Wilczynska, M. R., & Koch, F. (2016) · Cited by 146 · see citing works
Self-citationKarakas, A. I., Lugaro, M. A., Wiescher, M., Görres, J., & Ugalde, C. (2006) · The Astrophysical Journal · doi:10.1086/502793 · Cited by 105 · see citing works
Izzard, R. G., Lugaro, M. A., Karakas, A. I., Iliadis, C., & van Raai, M. (2007) · Astronomy and Astrophysics · doi:10.1051/0004-6361:20066903 · Cited by 102 · see citing works
Constraints on the variation of G from primordial nucleosynthesis
Clifton, T., Barrow, J. D., & Scherrer, R. J. (2005) · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · doi:10.1103/physrevd.71.123526 · Cited by 80 · see citing works
Kotuš, S., Murphy, M. T., & Carswell, R. F. (2016) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stw2543 · Cited by 71 · see citing works
Self-citationCalculation of isotope shifts and relativistic shifts in C I, C II, C III, and C IV
Berengut, J. C., Flambaum, V. V., & Kozlov, M. G. (2006) · Physical Review A · doi:10.1103/physreva.73.012504 · Cited by 67 · see citing works
Precision spectroscopy of the 3s−3p fine-structure doublet in Mg+
Batteiger, V., Knünz, S., Herrmann, M. G., Saathoff, G., Schüssler, H. A., Bernhardt, B., Wilken, T., Holzwarth, R., Hänsch, T. W., & Udem, T. (2009) · Physical Review A · doi:10.1103/physreva.80.022503 · Cited by 58 · see citing works
Subaru Telescope limits on cosmological variations in the fine-structure constant
Murphy, M. T., & Cooksey, K. L. (2017) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stx1949 · Cited by 54 · see citing works
Self-citationMurphy, M. T., Molaro, P. P., Leite, A. C. O., Cupani, G., Cristiani, S., D’Odorico, V., Génova-Santos, R., Martins, C. J. A. P., Milaković, D., Nunes, N. J., et al. (2021) · Astronomy and Astrophysics · doi:10.1051/0004-6361/202142257 · Cited by 54 · see citing works
Self-citationLaboratory atomic transition data for precise optical quasar absorption spectroscopy
Murphy, M. T., & Berengut, J. C. (2013) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stt2204 · Cited by 52 · see citing works
Self-citationA new era of fine structure constant measurements at high redshift
Milaković, D., Lee, C.-C., Carswell, R., Webb, J., Molaro, P., & Pasquini, L. (2020) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/staa3217 · Cited by 29 · see citing works
Relativistic corrections to the isotope shift in light ions
Korol, V., & Kozlov, M. G. (2007) · Physical Review A · doi:10.1103/physreva.76.022103 · Cited by 42 · see citing works
Murphy, M. T., Malec, A. L., & Prochaska, J. X. (2016) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stw1482 · Cited by 39 · see citing works
Self-citationAbdalla, E., Abellán, G. F., Aboubrahim, A., Agnello, A., Akarsu, Ö., Akrami, Y., Alestas, G., Aloni, D., Amendola, L., Anchordoqui, L. A., et al. (2022) · Journal of High Energy Astrophysics · doi:10.1016/j.jheap.2022.04.002 · Cited by 37 · see citing works
Fundamental constants: from measurement to the universe, a window on gravitation and cosmology
Uzan, J.-P. (2025) · Living Reviews in Relativity · doi:10.1007/s41114-025-00059-y · Cited by 36 · see citing works
Shell and explosive hydrogen burning
Boeltzig, A., Bruno, C. G., Cavanna, F., Cristallo, S., Davinson, T., Depalo, R., deBoer, R. J., Leva, A. D., Ferraro, F., Imbriani, G., et al. (2016) · The European Physical Journal A · doi:10.1140/epja/i2016-16075-4 · Cited by 31 · see citing works
Salumbides, E. J., Hannemann, S., Eikema, K. S. E., & Ubachs, W. (2006) · Monthly Notices of the Royal Astronomical Society Letters · doi:10.1111/j.1745-3933.2006.00239.x · Cited by 30 · see citing works
Frequency metrology on the Mg3s2S1→3s4pP1 line for comparison with quasar data
Hannemann, S., Salumbides, E. J., Witte, S. M., Zinkstok, R. T., van Duijn, E. J., Eikema, K. S. E., & Ubachs, W. (2006) · Physical Review A · doi:10.1103/physreva.74.012505 · Cited by 26 · see citing works
A new Collinear Apparatus for Laser Spectroscopy and Applied Science (COALA)
König, K., Krämer, J., Geppert, C., Imgram, P., Maaß, B., Ratajczyk, T., & Nörtershäuser, W. (2020) · Review of Scientific Instruments · doi:10.1063/5.0010903 · Cited by 24 · see citing works
Levshakov, S. A., Centurión, M., Molaro, P. P., & Костина, М. В. (2006) · Astronomy and Astrophysics · doi:10.1051/0004-6361:200600001 · Cited by 24 · see citing works
Imgram, P., König, K., Krämer, J., Ratajczyk, T., Müller, R. A., Surzhykov, A., & Nörtershäuser, W. (2019) · Physical Review A · doi:10.1103/physreva.99.012511 · Cited by 23 · see citing works
The cosmic evolution of magnesium isotopes
Vangioni–Flam, E., & Olive, K. A. (2019) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz210 · Cited by 22 · see citing works
The Evolution Of Carbon, Sulphur, and Titanium Isotopes from High-Redshift to the Local UniversePreprint
Hughes, G. L., Gibson, B. K., Carigi, L., Sánchez–Blázquez, P., Chavez, J. M., & Lambert, D. L. (2013) · Cited by 21 · see citing works
Self-citationBerengut, J. C., Dzuba, V. A., Flambaum, V. V., King, J. A., Kozlov, M. G., Murphy, M. T., & Webb, J. K. (2011) · Astrophysics and space science proceedings · doi:10.1007/978-3-642-19397-2_2 · Cited by 16 · see citing works
Self-citationThe evolution of carbon, sulphur and titanium isotopes from high redshift to the local Universe
Hughes, G. L., Gibson, B. K., Carigi, L., Sánchez-Blázquez, P., Chavez, J. M., & Lambert, D. L. (2008) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2008.13870.x · Cited by 14 · see citing works
Self-citationDO THE FUNDAMENTAL CONSTANTS CHANGE WITH TIME?
Kanekar, N. (2008) · Modern Physics Letters A · doi:10.1142/s0217732308028521 · Cited by 13 · see citing works
King, J. A. (2012) · arXiv (Cornell University) · doi:10.26190/unsworks/23723 · Cited by 12 · see citing works
Wavelength calibration of the C I line at 94.5 nm for comparison with quasar data
Labazan, I., Reinhold, E., Ubachs, W., & Flambaum, V. V. (2005) · Physical Review A · doi:10.1103/physreva.71.040501 · Cited by 11 · see citing works
Ong, A., Berengut, J. C., & Flambaum, V. V. (2014) · Springer tracts in modern physics · doi:10.1007/978-3-642-45201-7_9 · Cited by 9 · see citing works
Coefficients for sensitivity of fine-structure transitions in carbonlike ions to α variation
Kozlov, M. G., Tupitsyn, I. I., & Reimers, D. (2009) · Physical Review A · doi:10.1103/physreva.79.022117 · Cited by 6 · see citing works
Hydrodynamical Adaptive Mesh Refinement Simulations of Disk Galaxies
Gibson, B. K., Courty, S., Sánchez–Blázquez, P., Teyssier, R., House, E. L., Brook, C. B., & Kawata, D. (2008) · Proceedings of the International Astronomical Union · doi:10.1017/s1743921308027956 · Cited by 6 · see citing works
Self-citationConstraints on scalar coupling to electromagnetism
Antoniou, I. (2017) · Gravitation and Cosmology · doi:10.1134/s0202289317020025 · Cited by 3 · see citing works
Isotopic abundance of carbon in the DLA towards QSO B1331+170
Milaković, D., Webb, J. K., Molaro, P. P., Lee, C.-C., Jethwa, P., Cupani, G., Murphy, M. T., Welsh, L., D’Odorico, V., Cristiani, S., et al. (2024) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stae2056 · Cited by 2 · see citing works
Self-citationThe Chemistry of the Local Group
Gibson, B. K. (2006) · Proceedings of the International Astronomical Union · doi:10.1017/s1743921307007697 · Cited by 2 · see citing works
Self-citationGeng-Hua, Y., Hui, Y., Gao, D., Peng-Yi, Z., Hong, L., Zhu, X.-L., & Wei, Y. (2018) · Acta Physica Sinica · doi:10.7498/aps.67.20171817 · Cited by 1 · see citing works
Reaction Rate Uncertainties: NeNa and MgAl in AGB StarsPreprint
Izzard, R. G., Lugaro, M. A., Iliadis, C., & Karakas, A. I. (2006) · arXiv (Cornell University) · doi:10.48550/arxiv.astro-ph/0607536
Experiments with dipole-allowed transitions in trapped ions
Batteiger, V. (2011) · doi:10.5282/edoc.14365
- Authors
- Fenner, Y., Murphy, M. T., & Gibson, B. K.
- Affiliations
- Swinburne University of Technology (AU)
- University of Cambridge (GB)
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2005-04
- Volume
- 358
- Issue
- 2
- Pages
- 468-480
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2009743323
- Cited by
- 41
- References
- 116
- Citations by year
- 2025: 1 · 2024: 1 · 2022: 2 · 2021: 1 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 4 · 2014: 1 · 2013: 2 · 2012: 2
- FWCI
- 2.71
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Monthly Notices of the Royal Astronomical Society (publishedVersion)
- Swinburne figshare (Swinburne University of Technology) (acceptedVersion)
- Figshare (submittedVersion, cc-by)
- Swinburne figshare (Swinburne University of Technology)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Keywords
- fine-structure constant variation, quasar absorption lines, stellar pollution, magnesium isotopes, intermediate-mass stars, chemical evolution models, damped Lyman-alpha systems, initial mass function, nitrogen abundance, carbon isotope ratio, asymptotic giant branch, high-redshift absorbers
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