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researcher

S. A. Levshakov

5 papers here

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author1
  • last author3

Across the 5 of 5 papers where every author was matched, so the position is known.

fields
  • astro-ph3
  • astro-ph.CO2
ORCID 0000-0002-4142-9431

identity via Semantic Scholar / OpenAlex

activity
20072009
most citedBounds on the fine structure constant variability from FeII absorption lines in QSO spectra

74 citations · 136 across the 5 of their papers we have counts for

collaborators
Showing astro-phShow all

3 papers · 1 filter

astro-ph2008★ 18 cited

Mid- and far-infrared fine-structure line sensitivities to hypothetical variability of the fine-structure constant

M. G. Kozlov, S. G. Porsev, S. A. Levshakov +2

Sensitivity coefficients to temporal variation of the fine-structure constant alpha for transitions between the fine-structure (FS) sub-levels of the ground states of C I, Si I, S…

astro-ph2007★ 74 cited

Bounds on the fine structure constant variability from FeII absorption lines in QSO spectra

Paolo Molaro, Dieter Reimers, Irina I. Agafonova +1

The Single Ion Differential alpha Measurement (SIDAM) method for measuring fine stucture variations (daa)and its figures of merit are illustrated together with the results produced…

astro-ph2007★ 44 cited

A new approach for testing variations of fundamental constants over cosmic epochs using FIR fine-structure lines

S. A. Levshakov, D. Reimers, M. G. Kozlov +2

Aims. To obtain limits on the variation of the fine-structure constant alpha and the electron-to-proton mass ratio mu over different cosmological epochs. Methods. A new approach ba…

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