98 citations · 769 across the 27 of their papers we have counts for
27 papers
Cosmological Observational Tests in the JWST Era. II: The Tolman Test
V. V. Tsymbal, A. A. Raikov, N. Yu. Lovyagin
In this work, we investigate a classical cosmological test - the dependence of galaxy surface brightness on redshift z (the Tolman test). We analyzed 6 860 galaxies with reliably d…
Cosmological observational tests in the JWST Era. I: angular size - redshift
A. A. Raikov, V. V. Tsymbal, N. Yu. Lovyagin
This study is devoted to the cosmological "angular size - redshift" test. An analysis is performed of the angular and linear sizes of galaxies from the new ASTRODEEP-JWST catalogue…
High-precision photometric and high-resolution spectroscopic characterisation of HD 180347
Otto Trust, Lyudmila Mashonkina, Edward Jurua +3
We report the analysis of high-precision space-based photometric and high-resolution spectroscopic observations of HD 180347. The high-quality light curves from the Transiting Exop…
Pushing Least-Squares Deconvolution to the next level: application to binary stars
A. Tkachenko, V. Tsymbal, Zvyagintsev +3
Eclipsing, spectroscopic double-lined (SB2) binaries remain to be the prime source of precise and accurate fundamental properties of stars. Furthermore, high-cadence spectroscopic…
Fundamental parameters and abundance analysis of the components in the SB2 system HD 60803
T. Ryabchikova, S. Zvyagintsev, A. Tkachenko +3
We performed a detailed spectroscopic study of the SB2 system HD 60803 based on high-resolution spectra obtained with the different spectrographs. The analysis was done with two in…
The mass discrepancy in intermediate- and high-mass eclipsing binaries: the need for higher convective core masses
A. Tkachenko, K. Pavlovski, C. Johnston +6
(Abridged) Eclipsing, spectroscopic double-lined binary star systems (SB2) are excellent laboratories for calibrating theories of stellar interior structure and evolution. We aim t…