THE PULSATIONS OF RADIAL VELOCITIES AMPLITUDE OF V 474 MON - THE DELTA SCT TYPE STAR

Автор(и)

  • S. N. Udovichenko Astronomical Observatory, Odessa State University, T.G.Shevchenko Park, Odessa 270014 Ukraine, Ukraine
  • L. E. Lysova Astronomical Observatory, Odessa State University, T.G.Shevchenko Park, Odessa 270014 Ukraine, Ukraine
  • O. P. Paramonova Astronomical Observatory, Odessa State University, T.G.Shevchenko Park, Odessa 270014 Ukraine, Ukraine

DOI:

https://doi.org/10.18524/1810-4215.1994.7.105779

Ключові слова:

Stars, pulsating, radial velocities, V 474 Mon

Анотація

The variations of radial velocities amplitude of V474 Mon - the Delta Set type star have been determined from spectrograms obtained at the 6-m telescope. Lines of metals are measured. The curves of radial velosities show both primary and secondary period variations, and a pulsation amplitude varies with the secondary period. Using the observations published earlier, the relationship between the radial velocity amplitude and the phase of the secondary period was obtained. The constant gamma-velocity does not confirm a suggestion that the system is binary.

Посилання

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2017-07-01

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