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most citedImproved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers

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astro-ph.SR2019

CCD and DSLR maxima of RR Lyrae stars in 2016 and 2017

K. Hirosawa, J. F. Le Borgne

We present here maximum timings of RR Lyrae stars observed in 2016 and 2017 by VSOLJ member Kenji Hirosawa. The calculation of the time of maximum from the measurements provided by…