1995A&A...295..693K

Query : 1995A&A...295..693K

1995A&A...295..693K - Astronomy and Astrophysics, volume 295693-702 (1995/3-3)

Studies on amplitude-modulated RR Lyrae stars. I. RV Ursa Majoris.

KOVACS G.

Abstract (from CDS):

All available photoelectric observations of RV UMa have been analyzed to obtain an accurate mathematical description of the light variation. We show that a stationary Fourier-sum with frequencies of the form of k.f0, k.f0±fm, where k=0, 1, ..., 11; f0=2.136467d–1; fm=0.011020d–1, gives a good overall fit to the data which span 8 years. Errors of the Fourier-coefficients are discussed in terms of coloured noise. After prewhitening, the remaining power in the frequency spectra show only some regular features which themselves alone are not enough to account for the scatter above the observational limit. Present data do not permit considerations about the physical nature of the residuals. We discuss the various possible models of the amplitude modulation. In all these models nonradial pulsation plays an important role. We stress the need for complete observational and theoretical efforts to find out the right physical mechanism behind the amplitude modulation.

Abstract Copyright: ∼

Journal keyword(s): stars: oscillations - stars: horizontal-branch - stars: magnetic field - stars: individual: RV UMa - methods: data analysis

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* RV UMa RR* 13 33 18.0838837128 +53 59 14.598026988   10.97 10.9     kA9hF7 182 0

Query : 1995A&A...295..693K

Basic data :
V* RV UMa -- RR Lyrae Variable
Other object types: otypes_help 		* (BD,GCRV,...), RR* (2006AJ), V* (AN,V*), RR? (2018yCat), PM* (2018yCat), NIR (2MASS)
ICRS coord. (ep=J2000) : 		13 33 18.0838837128 +53 59 14.598026988 (Optical) [ 0.0106 0.0120 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		13 31 20.6776044978 +54 14 38.480671212 [ 0.0106 0.0120 90 ]
Gal coord. (ep=J2000) : 		109.7570582842399 +62.0570139145542 [ 0.0106 0.0120 90 ]
Proper motions mas/yr : 		-27.282 -42.791 [0.013 0.015 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -174.83 [3.91] / z(spectroscopic) -0.000583 [0.000013] / cz -174.78 [3.91]
   (Opt) C 2022yCat.1355....0G
Parallaxes (mas): 		0.9507 [0.0139] A 2020yCat.1350....0G
Spectral type: 		kA9hF7 D 1992PASP..104..111K
Fluxes (6) :
B 10.97 [~] E ~
V 10.9 [~] E ~
G 10.858340 [0.009913] C 2020yCat.1350....0G
J 10.088 [0.019] C 2003yCat.2246....0C
H 9.838 [0.026] C 2003yCat.2246....0C
K 9.816 [0.020] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 9833 Display criteria :

Identifiers (19) :
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BD+54 1607 HIC 66122 NSVS 2681537 WEB 11685
AN 139.1907 HIP 66122 TIC 467177475 Gaia DR3 1561928427003019520
GCRV 8033 2MASS J13331810+5359146 TYC 3850-662-1 Gaia DR1 1561928422706459264
GEN# +0.05401607 NPM1+54.0419 uvby98 005401607 V Gaia DR2 1561928427003019520
GSC 03850-00662 NSVS 2723669 V* RV UMa

References (182 between 1850 and 2026) (Total 182)
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 : 8    Distance : 4    Var : 5    Fe/H : 6    Plx : 4    PM : 4    SpT : 1   

   

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Link by name to the catalogue in VizieR :

BD+54 1607 GSC 03850-00662 HIC 66122 HIP 66122 2MASS J13331810+5359146
TYC 3850-662-1 uvby98 005401607 V V* RV UMa Gaia DR3 1561928427003019520 Gaia DR1 1561928422706459264
Gaia DR2 1561928427003019520

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