2013MNRAS.433.3590P

Query : 2013MNRAS.433.3590P

2013MNRAS.433.3590P - Mon. Not. R. Astron. Soc., 433, 3590-3596 (2013/August-3)

Low-dimensional chaos in RR Lyrae models.

PLACHY E., KOLLATH Z. and MOLNAR L.

Abstract (from CDS):

The recent precise photometric observations and successes of the modelling efforts transformed our picture of the pulsation of RR Lyrae stars. The discovery of additional frequencies and the period doubling phenomenon revealed that a significant interaction may occur between pulsational modes. The signs of irregularities were detected both in observed light curves and hydrodynamic calculations.

In this paper, we present the analysis of four peculiar hydrodynamic model solutions. All four solutions were found to be chaotic. The fractal (Lyapunov) dimensions of their attractors were calculated to be ∼ 2.2. We also investigated possible resonances between the fundamental mode and the first overtone in the dynamical neighbourhood of these models. The most important is the 6:8 resonance that was also detected in the Kepler observations of RR Lyrae itself. These results reveal that the investigation of chaotic models is important in discovering and understanding resonances in RR Lyrae stars.


Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): methods: numerical - stars: oscillations

Simbad objects: 1

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Number of rows : 1
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* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 951 0

Query : 2013MNRAS.433.3590P

Basic data :
V* RR Lyr -- RR Lyrae Variable
Other object types: otypes_help 		* (2022AJ,HD,...), PM* (2018yCat,G,...), RR* (2009AJ), V* (AN,V*), Pe* (2022ApJS), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 25 27.9129605304 +42 47 03.693258204 (Optical) [ 0.0224 0.0242 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 23 52.1924911590 +42 41 11.603868555 [ 0.0224 0.0242 90 ]
Gal coord. (ep=J2000) : 		074.9524342944418 +12.3041052044788 [ 0.0224 0.0242 90 ]
Proper motions mas/yr : 		-109.599 -195.851 [0.029 0.032 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -78.0694 [0.0919] / z(spectroscopic) -0.000260 [0.000000] / cz -78.06 [0.09]
   (NIR) A 2022ApJS..259...35A
Parallaxes (mas): 		3.9849 [0.0265] A 2020yCat.1350....0G
Spectral type: 		kA3hF0 D 1994ApJS...93..271S
Fluxes (6) :
B 7.36 [~] C 2002yCat.2237....0D
R 7.6 [~] E 2003AJ....125..984M
G 7.618805 [0.014922] C 2020yCat.1350....0G
J 6.949 [0.019] C 2003yCat.2246....0C
H 6.693 [0.023] C 2003yCat.2246....0C
K 6.648 [0.017] C 2003yCat.2246....0C
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Identifiers (36) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 182989 GEN# +1.00182989 NLTT 47799 TIC 159717514
AG+42 1698 G 125-7 NSVS 5543125 TYC 3142-494-1
AN 34.1901 GSC 03142-00494 PLX 4550 USNO-B1.0 1327-00425262
AP J19252793+4247040 HIC 95497 PLX 4550.00 USNO 886
ASCC 425414 HIP 95497 PPM 58291 uvby98 100182989
BD+42 3338 KIC 7198959 SAO 48421 V* RR Lyr
GAT 791 LSPM J1925+4247 SKY# 36151 WEB 16701
GC 26836 LTT 15677 SV* HV 180 Gaia DR3 2125982599343482624
GCRV 11873 2MASS J19252793+4247040 TD1 24704 Gaia DR2 2125982599341232896

References (951 between 1850 and 2026) (Total 951)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 13    Distance : 2    Var : 3    Rot : 2    Fe/H : 28    Plx : 5    PM : 8    SpT : 2   

   

Observing logs
IUE : 112   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

HD 182989 AG+42 1698 AP J19252793+4247040 BD+42 3338 G 125-7
GSC 03142-00494 HIC 95497 HIP 95497 KIC 7198959 LSPM J1925+4247
2MASS J19252793+4247040 NLTT 47799 PLX 4550 PPM 58291 SAO 48421
TD1 24704 TYC 3142-494-1 USNO-B1.0 1327-00425262 uvby98 100182989 V* RR Lyr
Gaia DR3 2125982599343482624 Gaia DR2 2125982599341232896

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