FREQUENCY ANALYSIS OF TWO-YEARS OBSERVATIONS OF RR LYRAE
2964 photoelectric observation of RR Lyrae were obtained at the Odessa observatory during two years: 1977 and 1978. Observations were transformed to standard BV photometric system and frequency-analyzed in the interval 0.08-700 days. A number of harmonics were detected. The main harmonic coincides w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Odessa I. I. Mechnykov National University
2017-07-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/105780 |
| Summary: | 2964 photoelectric observation of RR Lyrae were obtained at the Odessa observatory during two years: 1977 and 1978. Observations were transformed to standard BV photometric system and frequency-analyzed in the interval 0.08-700 days. A number of harmonics were detected. The main harmonic coincides with the well known photometric period (v0=1.764129), second harmonic ( vb=1.789093) is related with a period of Blazhko effect. There is a sequence of harmonics, which can be written by equation v=kv0 + vb where k=0,1,2,3,4. Two harmonics are connected with known periods of RR Lyrae: 123 days and four years. |
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| ISSN: | 1810-4215 |