Browsing by Subject "Pulsating stars"

Browsing by Subject "Pulsating stars"

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    A search for multiple periodicities in three delta Scuti stars 
    Reed, Laureen G. (Halifax, N.S. : Saint Mary's University, 1986)
    New photoelectric photometry and period searches are presented for three northern delta Scuti variables: LT Vulpeculae, V1208 Aquilae, and 63 Herculis. In past work, two of these three stars were shown to exhibit single-period, ...

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    Discovery of the new slowly pulsating B star HD 163830 (B5 II/III) from MOST space-based photometry 
    Guenther, David B.; Aerts, C.; De Cat, P.; Kuschnig, R.; Matthews, J. M.; Moffat, A. F. J.; Rucinski, S. M.; Sasselov, D.; Walker, G. A. H.; Weiss, W. W. (American Astronomical SocietyIOP Publishing, 2006-05-10)
    We report the discovery of a new slowly pulsating B star, with the largest number of detected frequencies to date by more than a factor of 3, based on 37 days of MOST (Microvariability and Oscillations of STars) satellite ...

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    The interaction between multi-dimensional convection and radial stellar pulsation 
    Geroux, Christopher M. (Halifax, N.S. : Saint Mary's University, 2013)
    We have developed a three-dimensional radiation hydrodynamics code to simulate the interaction of convection and pulsation in classical variable stars. One key goal is the ability to carry these simulations to full amplitude ...

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    Matching the spectral energy distribution and p-mode oscillation frequencies of the rapidly rotating delta Scuti star [alpha] Ophiuchi with a two-dimensional rotating stellar model 
    Deupree, Robert G. (Robert Gaston), 1946-; Castañeda, Diego; Pena, Fernando; Short, C. Ian (Christopher Ian), 1965- (American Astronomical Society, 2012-07)
    Spectral energy distributions are computed using two-dimensional (2D) rotating stellar models and non-LTE plane-parallel model atmospheres. A rotating, 2D stellar model has been found that matches the observed ultraviolet ...

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    MOST detects SPBe pulsations in HD 127756 and HD 217543: asteroseismic rotation rates independent of v sin i[superscript 1] 
    Guenther, David B.; Cameron, Chris; Saio, H.; Kuschnig, R.; Walker, G. A. H.; Matthews, J. M.; Moffat, A. F. J.; Rucinski, S. M.; Sasselov, D.; Weiss, W. W. (American Astronomical Society, 2008-09)
    The MOST (Microvariability and Oscillations of Stars ) satellite has discovered SPBe (slowly pulsating Be) oscillations in the stars HD 127756 (B1/B2 Vne) and HD 217543 (B3 Vpe). For HD 127756, 30 significant frequencies ...

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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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    The pulsation properties of Procyon A 
    Guenther, David B.; Chaboyer, Brian; Demarque, P. (American Astronomical Society, 1999-11-01)
    A grid of stellar evolution models for Procyon A has been calculated. These models include the best physics available to us (including the latest opacities and equation of state) and are based on the revised astrometric ...

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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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    Rotation and oblique pulsation in Kepler observations of the roAp star KIC 10483436 
    Gruberbauer, Michael; Balona, L. A.; Cunha, M. S.; Kurtz, D. W.; Saio, H.; White, T. R.; Christensen-Dalsgaard, J.; Kjeldsen, H.; Christiansen, J. L.; Hall, J. R. (Oxford University Press, 2011)
    Photometry of KIC 10483436 was obtained continuously with 1-min exposures over a 27-d period from the Kepler satellite. The light curve shows rotational variations from surface spots with a period of 4.303 [plus or minus] ...