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| Query : 2017AcA....67..317K |
2017AcA....67..317K - Acta Astron., 67, 317-327 (2017/December-0)
USNO-B1.0 1171-0309158: An RR Lyrae Star that Switched from a Double-to Single-Mode Pulsation.
KHRUSLOV A.V., KUSAKIN A.V. and REVA I.V.
Abstract (from CDS):
We report the discovery of a new case of an RR Lyr star that experienced a switching of its pulsation mode. We detected USNO-B1.0 1171-0309158 as a double-mode RR Lyr star from observations of the Catalina Surveys that showed additional scattering on the light curve. Our analysis of the time-series of CSS data showed gradual increase in scattering and in the amplitude of fundamental pulsation mode. Our CCD observations carried out in 2015-2017 reveal that this object is now a fundamental-mode RRab star, with no sign of the first-overtone pulsation.
Abstract Copyright: ∼
Journal keyword(s): Stars: variables: RR Lyrae - Stars: oscillations - Stars: Population II - Stars: horizontal-branch
Simbad objects: 12
| Number of rows : 12 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | OGLE LMC-RRLYR-13308 | RR* | 05 22 43.5579606312 | -71 10 48.236945304 | 19.433 | 18.899 | ~ | 13 | 0 | |||
| 2 | NAME LMC | G | 05 23 34.6 | -69 45 22 | 0.4 | ~ | 19090 | 0 | ||||
| 3 | M 68 | GlC | 12 39 27.98 | -26 44 38.6 | 7.96 | ~ | 1069 | 0 | ||||
| 4 | M 3 | GlC | 13 42 11.62 | +28 22 38.2 | 6.39 | ~ | 2593 | 0 | ||||
| 5 | NGC 5272 1041 | RR* | 13 42 14.7094647888 | +28 28 31.576265364 | 15.62 | 15.62 | ~ | 49 | 0 | |||
| 6 | USNO-B1.0 1171-00309146 | * | 16 56 40.4258336616 | +27 08 44.049553980 | 14.3 | 13.8 | ~ | 1 | 0 | |||
| 7 | USNO-B1.0 1171-00309149 | * | 16 56 41.1010203408 | +27 09 58.064105520 | 17.4 | 16.3 | ~ | 1 | 0 | |||
| 8 | ZTF J165641.98+270955.2 | RR* | 16 56 41.9898879048 | +27 09 55.143142884 | 16.8 | 16.19 | 15.9 | A0 | 14 | 0 | ||
| 9 | OGLE BLG-RRLYR-7226 | RR* | 17 55 01.1059043904 | -33 39 37.869480612 | 18.588 | 16.982 | ~ | 10 | 0 | |||
| 10 | OGLE BLG-RRLYR-12245 | RR* | 18 03 54.0475764696 | -31 25 10.860102624 | 17.277 | 15.525 | ~ | 19 | 0 | |||
| 11 | OGLE BLG-RRLYR-13442 | RR* | 18 06 26.6775904656 | -29 15 00.339487380 | 17.187 | 16.067 | ~ | 7 | 0 | |||
| 12 | NAME Galactic Bulge | reg | ~ | ~ | ~ | 4794 | 0 |
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