142 citations · 1.7k across the 55 of their papers we have counts for
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A new framework of multidimensional pulsating stellar envelopes I.: Properties of turbulent convection in static RR Lyrae envelope models with SPHERLS
Gábor B. Kovács, R. Szabó, J. Nuspl
Context. The one-dimensional treatment of turbulent convection had large successes until the early 2000s. However, the recent abundance and precision of observational data shows th…
On the incidence rate of RR Lyrae stars with non-radial modes
H. Netzel, V. Varga, R. Szabo +2
Over the recent years, additional low-amplitude non-radial modes were detected in many of the first-overtone RR Lyrae stars. These non-radial modes form a characteristic period rat…
Double-Mode RR Lyrae Stars Observed by K2: Analysis of High-Precision Kepler Photometry
James M. Nemec, Amanda F. Linnell Nemec, Pawel Moskalik +4
The results of a Fourier analysis of high-precision Kepler photometry of 75 double-mode RR~Lyrae (RRd) stars observed during NASA's K2 Mission (2014-18) are presented. Seventy-two…
TESS Cycle 2 observations of roAp stars with 2-min cadence data
D. L. Holdsworth, M. S. Cunha, M. Lares-Martiz +46
We present the results of a systematic search of the Transiting Exoplanet Survey Satellite (TESS) 2-min cadence data for new rapidly oscillating Ap (roAp) stars observed during the…
TESS Cycle 1 observations of roAp stars with 2-min cadence data
D. L. Holdsworth, M. S. Cunha, D. W. Kurtz +41
We present the results of a systematic search for new rapidly oscillating Ap (roAp) stars using the 2-min cadence data collected by the Transiting Exoplanet Survey Satellite (TESS)…
TESS observations of Cepheid stars: first light results
E. Plachy, A. Pál, A. Bódi +33
We present the first analysis of Cepheid stars observed by the TESS space mission in Sectors 1 to 5. Our sample consists of 25 pulsators: ten fundamental mode, three overtone and t…
A modulated RRd star observed by K2
E. Plachy, P. Klagyivik, L. Molnár +1
We report the analysis of the double-mode RR Lyrae star EPIC 205209951, the first modulated RRd star observed from space. The amplitude and phase modulation are present in both mod…
The additional-mode garden of RR Lyrae stars
L. Molnár, E. Plachy, P. Klagyivik +6
Space-based photometric missions revealed a surprising abundance of millimagnitude-level additional modes in RR Lyrae stars. The modes that appear in the modulated fundamental-mode…
The Kepler Cepheid V1154 Cyg revisited: light curve modulation and detection of granulation
A. Derekas, E. Plachy, L. Molnar +8
We present a detailed analysis of the bright Cepheid-type variable star V1154 Cygni using 4 years of continuous observations by the Kepler space telescope. We detected 28 frequenci…
Finest light curve details, physical parameters, and period fluctuations of CoRoT RR Lyrae stars
J. M. Benkő, R. Szabó, A. Derekas +1
The CoRoT satellite supplied the scientific community with a huge data base of variable stars. Among them the RR Lyrae stars have intensively been discussed in numerous papers in t…
Metal-rich or misclassified? The case of four RR Lyrae stars
L. Molnár, Á. L. Juhász, E. Plachy +1
We analysed the light curve of four, apparently extremely metal-rich fundamental-mode RR Lyrae stars. We identified two stars, MT Tel and ASAS J091803-3022.6 as RRc (first-overtone…
Target selection of classical pulsating variables for space-based photometry
E. Plachy, L. Molnár, R. Szabó +2
In a few years the Kepler and TESS missions will provide ultra-precise photometry for thousands of RR Lyrae and hundreds of Cepheid stars. In the extended Kepler mission all target…
The Blazhko effect and additional excited modes in RR Lyrae stars
J. M. Benkő, R. Szabó
Recent photometric space missions, such as CoRoT and Kepler revealed that many RR Lyrae stars pulsate -- beyond their main radial pulsation mode -- in low amplitude modes. Space da…
An RR Lyrae family portrait: 33 stars observed in Pisces with K2-E2
L. Molnár, R. Szabó, P. A. Moskalik +7
A detailed analysis is presented of 33 RR Lyrae stars in Pisces observed with the Kepler space telescope over the 8.9-day long K2 Two-Wheel Concept Engineering Test. The sample inc…
Kepler photometry of RRc stars: peculiar double-mode pulsations and period doubling
P. Moskalik, R. Smolec, K. Kolenberg +11
We present the analysis of four first overtone RR Lyrae stars observed with the Kepler space telescope, based on data obtained over nearly 2.5yr. All four stars are found to be mul…
Connection between the period and the amplitude of the Blazhko effect
J. M. Benkő, R. Szabó
We found a possible relationship between the modulation period and the amplitude of the Blazhko RR Lyrae stars: long modulation period generally implies high modulation amplitude w…
The space photometry revolution and our understanding of RR Lyrae stars
R. Szabó, J. M. Benkő, M. Paparó +7
The study of RR Lyrae stars has recently been invigorated thanks to the long, uninterrupted, ultra-precise time series data provided by the Kepler and CoRoT space telescopes. We gi…
Nonlinear dynamical analysis of the Blazhko effect with the Kepler space telescope: the case of V783 Cyg
E. Plachy, J. M. Benkő, Z. Kolláth +2
We present a detailed nonlinear dynamical investigation of the Blazhko modulation of the Kepler RR Lyrae star V783 Cyg (KIC 5559631). We used different techniques to produce modula…
HD 183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component
T. Borkovits, A. Derekas, J. Fuller +16
KIC 8560861 (HD 183648) is a marginally eccentric (e=0.05) eclipsing binary with an orbital period of P_orb=31.973d, exhibiting mmag amplitude pulsations on time scales of a few da…
Long time-scale behavior of the Blazhko effect from rectified Kepler data
J. M. Benkő, E. Plachy, R. Szabó +2
In order to benefit from the 4-year unprecedented precision of the Kepler data, we extracted light curves from the pixel photometric data of the Kepler space telescope for 15 Blazh…
Cepheids and RR Lyrae stars in the K2 fields
L. Molnár, E. Plachy, R. Szabó
With the step-and-stare approach of the K2 mission, Kepler will be able to observe a large number of Cepheid an RR Lyrae stars. In this paper we describe the target selection effor…
The historical vanishing of the Blazhko effect of RR Lyr from GEOS and Kepler surveys
J. F. Le Borgne, E. Poretti, A. Klotz +20
RR Lyr is one of the most studied variable stars. Its light curve has been regularly monitored since the discovery of the periodic variability in 1899. Analysis of all observed max…
Kepler RR Lyrae stars: beyond period doubling
L. Molnár, J. M. Benkő, R. Szabó +1
We examined the complete short cadence sample of Kepler RR Lyrae stars to further investigate the recently discovered dynamical effects such as period doubling and additional modes…
Analysis of the possible Blazhko-effect Cepheid V473 Lyrae
L. Molnár, L. Szabados, R. J. Dukes +2
V473 Lyrae is a peculiar Galactic Cepheid, showing strong amplitude modulation that resembles the Blazhko-effect observed in RR Lyrae stars. We collected data spanning several modu…