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Cited by 586

The DOI matches its Crossref record; 84 of the 84 references it cites were found in a registry or an index.

Age-dating luminous red galaxies observed with the Southern African Large Telescope

Open access
Ratsimbazafy, A. L., Loubser, S. I., Crawford, S. M., Cress, C. M., Bassett, B. A., Nichol, R. C., Väisänen, P.·2017·Monthly Notices of the Royal Astronomical Society

Abstract

We measure a value for the cosmic expansion of H(z) = 89 ± 23(stat) ± 44(syst) km s−1 Mpc−1 at a redshift of z ≃ 0.47 based on the differential age technique. This technique, also known as cosmic chronometers, uses the age difference between two redshifts for a passively evolving population of galaxies to calculate the expansion rate of the Universe. Our measurement is based on the analysis of high-quality spectra of luminous red galaxies obtained with the Southern African Large Telescope in two narrow redshift ranges of z ≃ 0.40 and 0.55 as part of an initial pilot study. Ages were estimated by fitting single stellar population models to the observed spectra. This measurement presents one of the best estimates of H(z) via this method at z ∼ 0.5 to date.

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Metadata

Authors
Ratsimbazafy, A. L., Loubser, S. I., Crawford, S. M., Cress, C. M., Bassett, B. A., Nichol, R. C., & Väisänen, P.
Venue
Monthly Notices of the Royal Astronomical Society
Published
2017-02-06
Volume
467
Issue
3
Pages
3239-3254
ISSN
  • 0035-8711 (ISSN-L)
  • 1365-2966
OpenAlex
W2587754488
Cited by
586
References
84
FWCI
12.51
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Age-dating luminous red galaxies observed with the Southern African Large Telescope. https://app.cochat.ai/papers/10.1093/mnras/stx301
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Ratsimbazafy, A. L., Loubser, S. I., Crawford, S. M., Cress, C. M., Bassett, B. A., Nichol, R. C., & Väisänen, P. (2017). Age-dating luminous red galaxies observed with the Southern African Large Telescope. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stx301

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