Browsing Articles by Author "Zwintz, K."

Browsing Articles by Author "Zwintz, K."

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    Asteroseismic analysis of the pre-main-sequence stars in NGC 2264 
    Guenther, David B.; Kallinger, T.; Zwintz, K.; Weiss, W. W.; Kuschnig, R.; Casey, M. P.; Matthews, J. M.; Moffat, A. F. J.; Rucinski, S. M.; Sasselov, D.; Walker, G. A. H. (American Astronomical Society, 2009-10-20)
    NGC 2264 is a young open cluster lying above the Galactic plane in which six variable stars have previously been identified as possible pre-main-sequence (PMS) pulsators. Their oscillation spectra are relatively sparse ...

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    [gamma] Doradus pulsation in two pre-main sequence stars discovered by CoRoT 
    Zwintz, K.; Fossati, L.; Ryabchikova, T.; Kaiser, A.; Gruberbauer, Michael; Barnes, T. G.; Baglin, A.; Chaintreuil, S. (EDP Sciences, 2013-02)
    Context. Pulsations in pre-main sequence stars have been discovered several times within the last years. But nearly all of these pulsators are of [delta] Scuti-type. [gamma] Doradus-type pulsation in young stars has been ...

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    MOST observations of the Herbig Ae [delta]-Scuti star HD 34282 
    Guenther, David B.; Casey, M. P.; Zwintz, K.; Weiss, W. W.; Amado, P. J.; Diaz-Fraile, D.; Rodriguez, E.; Kuschnig, R.; Matthews, J. M.; Moffat, A. F. J. (Royal Astronomical SocietyOxford University Press, 2013-01)
    Microvariability and Oscillations of STars observations and model analysis of the Herbig Ae star HD 34282 (V1366 Ori) reveal [delta] Scuti pulsations. 22 frequencies are observed, 10 of which confirm those previously ...

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    New slowly pulsating B stars in the field of the young open cluster NGC 2244 discovered by the MOST photometric satellite 
    Guenther, David B.; Gruber, D.; Saio, H.; Kuschnig, R.; Fossati, L.; Handler, G.; Zwintz, K.; Weiss, W. W.; Matthews, J. M.; Moffat, A. F. J. (Oxford University Press, 2012-02)
    During two weeks of nearly continuous optical photometry of the young open cluster NGC 2244 obtained by the Microvariability and Oscillations of STars (MOST) satellite,we discovered two new slowly pulsating B (SPB) stars, ...

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    Pulsation analysis of V 588 MON AND V 589 MON observed with the MOST AND CoRoT satellites 
    Zwintz, K.; Kallinger, T.; Guenther, David B.; Gruberbauer, Michael; Kuschnig, R.; Weiss, W. W.; Auvergne, M.; Jorda, L.; Favata, F.; Matthews, J.; Fischer, M. (American Astronomical SocietyIOP Publishing, 2011-03-01)
    The two pulsating pre-main sequence (PMS) stars V 588 Mon and V 589 Mon were observed by CoRoT for 23.4 days in 2008 March during the Short Run SRa01 and in 2004 and 2006 by MOST for a total of ∼70 days. We present their ...

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    Pulsation of the K 2.5 giant star GSC 09137-03505? 
    Guenther, David B.; Kallinger, T.; Zwintz, K.; Pamyatnykh, A. A.; Weiss, W. W. (EDP Sciences, 2005-04)
    In July, 1999, the Hubble Space Telescope (HST) pointed for more than 8 days continuously at the globular cluster 47 Tucanae. Two guide stars were used during this campaign by the Fine Guidance Sensors (FGS). Using more ...

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    Regular frequency patterns in the classical [delta] Scuti star HD 144277 observed by the MOST satellite 
    Zwintz, K.; Lenz, P.; Breger, M.; Pamyatnykh, A. A.; Zdravkov, T.; Kuschnig, R.; Matthews, J. M.; Guenther, David B.; Moffat, A. F. J.; Rowe, J. F. (EDP Sciences S.A., 2011-09)

    Context. We present high-precision time-series photometry of the classical δ Scuti star HD 144277 obtained with the MOST (Microvariability and Oscillations of STars) satellite in two consecutive years. The observed ...


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    Regular frequency patterns in the young [delta] Scuti star HD 261711 observed by the CoRoT and MOST satellites 
    Zwintz, K.; Fossati, L.; Guenther, David B.; Ryabchikova, T.; Baglin, A.; Themessl, N.; Barnes, T. G.; Matthews, J. M.; Auvergne, M.; Bohlender, D. (EDP Sciences, 2013-04)
    Context. The internal structure of pre-main-sequence (PMS) stars is poorly constrained at present. This could change significantly through high-quality asteroseismological observations of a sample of such stars. Aims. We ...

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    Seismology of pre-main-sequence stars in NGC 6530 
    Guenther, David B.; Kallinger, T.; Zwintz, K.; Weiss, W. W.; Tanner, J. (American Astronomical Society, 2007-12)
    Nonradial p-mode oscillation spectra, computed from a dense grid of pre-main-sequence models, are fit to observed oscillation spectra of several stars in the young cluster NGC 6530. The five stars we consider, all previously ...

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    Stellar modelling of Spica, a high-mass spectroscopic binary with a [beta] Cep variable primary component 
    Tkachenko, A.; Matthews, J. M.; Aerts, C.; Pavlovski, K.; Papics, P. I.; Zwintz, K.; Cameron, C.; Walker, G. A. H.; Kuschnig, R.; Degroote, P.; Guenther, David B. (Oxford University Press, 2016-05-11)
    Binary stars provide a valuable test of stellar structure and evolution, because the masses of the individual stellar components can be derived with high accuracy and in a model-independent way. In this work, we study ...

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