1997PASP..109..264P

Query : 1997PASP..109..264P

1997PASP..109..264P - Publ. Astron. Soc. Pac., 109, 264-269 (1997/March-0)

The nature of the period changes in RV Tauri stars.

PERCY J.R., BEZUHLY M. and MILANOWSKI M.

Abstract (from CDS):

We have studied the period changes in 15 RV Tauri stars, using the Eddington- Plakidis hypothesis, which assumes that the (O-C) diagrams can be interpreted as a superposition of random errors in the measured times of minimum, and random cycle-to-cycle fluctuations in the period. Except for three stars for which the data are sparse, the hypothesis fits the (O-C) data very well, suggesting that the assumptions are correct. The magnitude of the random period fluctuations does not appear to correlate with any obvious physical property of stars.

Abstract Copyright: ∼

Journal keyword(s): Stars

Simbad objects: 15

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Number of rows : 15
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* TW Cam pA* 04 20 47.6363454312 +57 26 28.522779504 12.12 11.42 10.08 9.29   G8Ib 77 0
2 V* RV Tau RV* 04 47 06.7239850584 +26 10 45.532913268   11.00 9.80     K3Ibe 297 1
3 V* SS Gem RV* 06 08 35.1092051400 +22 37 01.988942124 10.42 9.71 8.67     G2/5I 72 0
4 V* SU Gem Mi* 06 14 00.0252211992 +27 42 12.186889416   11.70 10.19 11.92   F8/G0Ib 55 0
5 V* V Mon S* 06 22 43.5821819376 -02 11 43.500924636 9.03 8.26 6.87 6.41   M5-8Se 139 0
6 V* AR Pup pA* 08 03 01.6516600440 -36 35 47.949428976   10.25 9.55     Rpec 93 0
7 V* IW Car pA* 09 26 53.3035361952 -63 37 48.931552488   9.07 7.90     F7/8 101 0
8 V* TT Oph RV* 16 49 35.8841138088 +03 37 54.167585592 11.64 10.57 9.45     F5pe 73 0
9 V* AC Her pA* 18 30 16.2373118976 +21 52 00.599340000 8.00 7.79 7.01     F4Ibp 359 0
10 V* EP Lyr RV* 19 18 19.5570243336 +27 51 03.082292928   11.22 9.96 10.14   G2II 92 1
11 V* EZ Aql RV* 19 39 29.6979272832 +08 36 27.999516024   12.84 12.15     G8 20 0
12 V* DF Cyg RV* 19 48 53.9450982768 +43 02 14.539346592   12.19 10.80 10.81 10.484 G6/7Ib/IIa 55 0
13 V* R Sge pA* 20 14 03.7432133928 +16 43 35.030552844   10.19 9.20     G8Ib 86 0
14 V* V Vul RV* 20 36 32.0211817128 +26 36 14.499788940   9.68 8.05     K0 85 0
15 V* BT Lac RV* 22 24 13.7741799576 +56 11 33.217084968           G8 16 0

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