95 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Konkoly ObservatoryHU10 papers
- HUN-REN Research Centre for Astronomy and Earth SciencesHU8 papers
- Center for Astrophysics Harvard & SmithsonianUS4 papers
- Hungarian Academy of SciencesHU4 papers
- Max Planck Institute for ChemistryDE4 papers
- J. Selye UniversitySK3 papers
- Max Planck Institute for Solar System ResearchDE3 papers
- Australian National UniversityAU2 papers
- Camosun CollegeCA2 papers
- Eötvös Loránd UniversityHU2 papers
- Harvard UniversityUS2 papers
- KU LeuvenBE2 papers
14 papers · 1 filter
Magnetic cycles at different ages of stars
K. Oláh, Zs. Kővári, K. Petrovay +4
We study the different patterns of interannual magnetic variability in stars on or near the lower main sequence, approximately solar-type (G-K dwarf) stars in time series of 36 yea…
Evaluating the summer night sky brightness at a research field site on Lake Stechlin in northeastern Germany
Andreas Jechow, Franz Hölker, Zoltán Kolláth +2
We report on luminance measurements of the summer night sky at a field site on a freshwater lake in northeastern Germany (Lake Stechlin) to evaluate the amount of artificial skyglo…
Origin of the p-process radionuclides 92Nb and 146Sm in the early Solar System and inferences on the birth of the Sun
Maria Lugaro, Marco Pignatari, Ulrich Ott +4
The abundances of 92Nb and 146Sm in the early Solar System are determined from meteoritic analysis and their stellar production is attributed to the p process. We investigate if th…
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…
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…
Stellar origin of the 182Hf cosmochronometer and the presolar history of solar system matter
Maria Lugaro, Alexander Heger, Dean Osrin +7
Among the short-lived radioactive nuclei inferred to be present in the early solar system via meteoritic analyses, there are several heavier than iron whose stellar origin has been…
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…
V473 Lyrae, a unique second-overtone Cepheid with two modulation cycles
László Molnár, László Szabados
V473 Lyrae is the only Galactic Cepheid with confirmed periodic amplitude and phase variations similar to the Blazhko effect observed in RR Lyrae stars. We collected all available…
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…
On the interchange of alternating-amplitude pulsation cycles
E. Plachy, L. Molnár, Z. Kolláth +2
We characterized the time intervals between the interchanges of the alternating high- and low-amplitude extrema of three RV Tauri and three RR Lyrae stars.
High-precision 2MASS JHKs light curves and other data for RR Lyrae star SDSS J015450+001501: strong constraints for non-linear pulsation models
R. Szabó, Z. Ivezić, L. L. Kiss +6
We present and discuss an extensive data set for the non-Blazhko ab-type RR Lyrae star SDSSJ015450+001501, including optical SDSS ugriz light curves and spectroscopic data, LINEAR…
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…
New attempts to understand nanodiamond stardust
Ulrich Ott, Astrid Besmehn, Khalil Farouqi +5
We report on a concerted effort aimed at understanding the origin and history of the pre-solar nanodiamonds in meteorites including the astrophysical sources of the observed isotop…