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| Query : 1992JAVSO..21...86P |
1992JAVSO..21...86P - J. Am. Assoc. Variable star obs., 21, 86-92 (1992/December-0)
Period changes in RV Tauri stars: observations and simulations.
PERCY J.R., CSATARY A. and ZORGDRAGER I.
Abstract (from CDS):
We have determined the times and magnitudes of minimum brightness of two RV Tauri stars (SS Gem and V Vul) using data from the AAVSO and from the literature. We have used these to construct (O-C) diagrams. These are dominated by cyclic features with time scales ranging from several to several hundred pulsation periods. By constructing simulated (O-C) diagrams, we have shown that the observed (O-C) diagrams could be explained by the accumulation of random, cycle-to-cycle fluctuations in period, as in the case of most Mira stars.
Abstract Copyright: ∼
Journal keyword(s): RV Tauri stars
Simbad objects: 5
| Number of rows : 5 |
| 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 | V* SS Gem | RV* | 06 08 35.1092051400 | +22 37 01.988942124 | 10.42 | 9.71 | 8.67 | G2/5I | 72 | 0 | ||
| 2 | V* U Mon | pA* | 07 30 47.4711645432 | -09 46 36.757477488 | 8.22 | 7.00 | 5.82 | G8/K0Ib/II | 215 | 0 | ||
| 3 | V* AC Her | pA* | 18 30 16.2373118976 | +21 52 00.599340000 | 8.00 | 7.79 | 7.01 | F4Ibp | 359 | 0 | ||
| 4 | V* R Sct | RV* | 18 47 28.9498974024 | -05 42 18.542611800 | 8.30 | 6.67 | 5.20 | 4.14 | 3.37 | K4/5pec | 332 | 1 |
| 5 | V* V Vul | RV* | 20 36 32.0211817128 | +26 36 14.499788940 | 9.68 | 8.05 | K0 | 85 | 0 |
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