L
L. A. Balona
Publications - 63
Citations - 3063
L. A. Balona is an academic researcher. The author has contributed to research in topics: Stars & Light curve. The author has an hindex of 30, co-authored 58 publications receiving 2836 citations.
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Journal ArticleDOI
Kepler Asteroseismology Program: Introduction and First Results
Ronald L. Gilliland,Timothy M. Brown,Jørgen Christensen-Dalsgaard,Hans Kjeldsen,Conny Aerts,T. Appourchaux,Sarbani Basu,Timothy R. Bedding,William J. Chaplin,Margarida S. Cunha,P. De Cat,J. De Ridder,J. A. Guzik,Gerald Handler,S. D. Kawaler,László L. Kiss,Katrien Kolenberg,D. W. Kurtz,Travis S. Metcalfe,Mário J. P. F. G. Monteiro,Róbert Szabó,Torben Arentoft,L. A. Balona,Jonas Debosscher,Yvonne Elsworth,P.-O. Quirion,Dennis Stello,Juan Carlos Suárez,William J. Borucki,Jon M. Jenkins,David G. Koch,Yoji Kondo,D. W. Latham,Jason F. Rowe,Jason H. Steffen +34 more
TL;DR: Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observationsof normal modes of oscillation as discussed by the authors.
Journal ArticleDOI
HYBRID γ DORADUS-δ SCUTI PULSATORS: NEW INSIGHTS INTO THE PHYSICS OF THE OSCILLATIONS FROM KEPLER OBSERVATIONS
A. Grigahcène,Victoria Antoci,L. A. Balona,Giovanni Catanzaro,Jadwiga Daszyńska-Daszkiewicz,Joyce A. Guzik,Gerald Handler,G. Houdek,D. W. Kurtz,Marcella Marconi,Mário J. P. F. G. Monteiro,A. Moya,Vincenzo Ripepi,Juan Carlos Suárez,K. Uytterhoeven,William J. Borucki,Timothy M. Brown,Joergen Christensen-Dalsgaard,R. L. Gilliland,Jon M. Jenkins,Hans Kjeldsen,David G. Koch,S. Bernabei,Paul A. Bradley,Michel Breger,M. Di Criscienzo,Marc-Antoine Dupret,Rafael A. García,A. García Hernández,Jason Jackiewicz,Andreas M. Kaiser,Holger Lehmann,Susana Martín-Ruiz,Philippe Mathias,Joanna Molenda-Żakowicz,J. M. Nemec,J. Nuspl,Margit Paparo,Markus Roth,Róbert Szabó,M. D. Suran,Rita Ventura +41 more
TL;DR: In this article, a new observational classification scheme is proposed that takes into account the amplitude as well as the frequency and is applied to categorize 234 stars as δSct, γDor, δ Sct/γDor or γ Dor/Sct hybrids.
Journal ArticleDOI
Hybrid gamma Doradus - delta Scuti pulsators: New insights into the physics of the oscillations from Kepler observations
A. Grigahcène,Victoria Antoci,L. A. Balona,Giovanni Catanzaro,Jadwiga Daszyńska-Daszkiewicz,J. A. Guzik,Gerald Handler,G. Houdek,D. W. Kurtz,Marcella Marconi,Mário J. P. F. G. Monteiro,A. Moya,V. Ripepi,Juan Carlos Suárez,K. Uytterhoeven,William J. Borucki,Timothy M. Brown,J. Christensen-Dalsgaard,R. L. Gilliland,J. M. Jenkins,H. Kjeldsen,David G. Koch,S. Bernabei,Paul A. Bradley,Michel Breger,M. Di Criscienzo,Marc-Antoine Dupret,Rafael A. García,A. García Hernández,Jason Jackiewicz,Andreas M. Kaiser,Holger Lehmann,S. Marin-Ruiz,P. Mathias,J. Molenda-Zakowicz,J. M. Nemec,J. Nuspl,M. Paparo,Markus Roth,Róbert Szabó,M. D. Suran,Rita Ventura +41 more
TL;DR: In this paper, a new observational classification scheme is proposed that takes into account the amplitude as well as the frequency, and is applied to categorize 234 stars as δ-Sct, δ$ Sct, Δ-Doradus (Dor), Δ-Scuti (Sct), δ-, δ)-Sct/$\gamma$ Dor or δ−Sct hybrids.
Journal ArticleDOI
First science with the Southern African Large Telescope: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2
Donal O'Donoghue,David A. H. Buckley,L. A. Balona,D. Bester,L. Botha,J. Brink,D. B. Carter,P. A. Charles,A. Christians,F. Ebrahim,R. Emmerich,W. Esterhuyse,Geoff Evans,C. Fourie,Piet Fourie,H. Gajjar,M. Gordon,C. Gumede,M. de Kock,A. Koeslag,W. P. Koorts,H. Kriel,Freddy Marang,J. G. Meiring,J. W. Menzies,P. Menzies,D. Metcalfe,B. Meyer,L. Nel,J. O'Connor,F. Osman,C. du Plessis,H. Rall,A. Riddick,Encarni Romero-Colmenero,S. B. Potter,Craig Sass,H. Schalekamp,N. Sessions,S. Siyengo,V. Sopela,H. Steyn,J. Stoffels,Jakub Scholtz,G. Swart,A. Swat,J. Swiegers,T. Tiheli,Petri Väisänen,W. Whittaker,F. van Wyk +50 more
TL;DR: In this article, high-speed unfiltered photometric observations of the eclipsing polar SDSS J015543.40+002807.2 with time-resolution as short as 112 ms were presented.
Journal ArticleDOI
Kepler observations of the variability in B-type stars
L. A. Balona,Andrzej Pigulski,P. De Cat,Gerald Handler,Juan Gutiérrez-Soto,Juan Gutiérrez-Soto,C. A. Engelbrecht,F. A. M. Frescura,Maryline Briquet,J. Cuypers,Jadwiga Daszyńska-Daszkiewicz,Pieter Degroote,R. J. Dukes,Rafael A. García,Elizabeth M. Green,Ulrich Heber,S. D. Kawaler,Holger Lehmann,B. Leroy,Joanna Molenda-Żakowicz,Coralie Neiner,Arlette Noels,J. Nuspl,R. H. Østensen,D. Pricopi,Ian W. Roxburgh,Sébastien Salmon,M. A. Smith,Juan Carlos Suárez,M. D. Suran,Róbert Szabó,K. Uytterhoeven,Christensen-Dalsgaard,Hans Kjeldsen,D. A. Caldwell,Forrest R. Girouard,Dwight T. Sanderfer +36 more
TL;DR: The analysis of the light curves of 48 B-type stars observed by Kepler is presented in this article, including 15 pulsating stars, all of which show low frequencies, characteristic of slowly pulsating B (SPB) stars.