Browsing Articles by Subject "Delta Scuti stars"

Now showing items 1-7 of 7

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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
Theoretical p-mode oscillation frequencies for the rapidly rotating [delta] Scuti star [alpha] Ophiuchi

Deupree, Robert G. (Robert Gaston), 1946- (IOP Publishing Limited, 2011-11-20)

A rotating, two-dimensional stellar model is evolved to match the approximate conditions of α Oph. Both axisymmetric and nonaxisymmetric oscillation frequencies are computed for two-dimensional rotating models which ...