Study of nonstationary processes in the close binary system RY Scuti
A new analysis is made of old electrophotometric data on RY Scuti, a close binary of an early spectral class, taken at the Abastumani Astrophysical Observatory, Georgia, during 1972–1985 and at the Maidanak Observatory, Uzbekistan, during 1979–1991. Nonstationary processes occurring from period to p...
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| Veröffentlicht in: | Astrophysics 2009-04, Vol.52 (2), p.251-263 |
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| creator | Kumsiashvili, M. I. Natsvlishvili, R. Sh Chargeishvili, K. V. |
| description | A new analysis is made of old electrophotometric data on RY Scuti, a close binary of an early spectral class, taken at the Abastumani Astrophysical Observatory, Georgia, during 1972–1985 and at the Maidanak Observatory, Uzbekistan, during 1979–1991. Nonstationary processes occurring from period to period, from month to month, and from year to year are identified in RY Scuti. These variations range from hundredths to tenths of a stellar magnitude. In addition, periodic changes in the light curve of this system with a period of several years have been identified near the first maximum. This result is of considerable interest in connection with similar brightness changes observed in bright blue variable LBV stars, and also is related to the ejection of a nebula surrounding the RY Scuti system. |
| doi_str_mv | 10.1007/s10511-009-9058-4 |
| format | Article |
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| subjects | Astronomy Astrophysics Astrophysics and Astroparticles Astrophysics and Cosmology Binary system Observations and Techniques Physics Physics and Astronomy Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Stars & galaxies |
| title | Study of nonstationary processes in the close binary system RY Scuti |
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