- Home
- →
- Browsing by Subject
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing by Subject "Astroseismology"
Now showing items 1-20 of 24
-
(Halifax, N.S. : Saint Mary's University, 2003)Stellar non-radial oscillations (p-modes) are ideal tools to test theories of stellar evolution and to provide information about stellar properties. This thesis develops and tests a technique to determine the stellar model ...
-
(Halifax, N.S. : Saint Mary's University, 2011)Information on 72 confirmed or candidate pre-main-sequence [delta]-Scuti stars is collected and analysed to varying degree of sophistication and completeness. A systematic asteroseismic analysis of around 40 of these stars ...
-
(American Astronomical Society, 2010-04-20)We present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5 d of science operations, reveal high signal-to-noise solar-like oscillation ...
-
(Halifax, N.S. : Saint Mary's University, 2007)We investigate in detail the potential of asteroseismology in exploring the structure of intermediate mass (1.6 ≤ M⊙ ≤ 5.0) pre-main sequence stars. It is expected that pre- and post-main sequence ...
-
(EDP Sciences, 2010-10)Context. Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of ...
-
(Halifax, N.S. : Saint Mary's University, 2013)This thesis presents a new probabilistic method for the asteroseismic analysis of stellar structure and evolution with the goal of providing a universal tool to improve our knowledge of stellar modelling. This new method ...
-
(Oxford University Press, 2013-10)We study 23 previously published Kepler targets to perform a consistent grid-based Bayesian asteroseismic analysis and compare our results to those obtained via the Asteroseismic Modelling Portal. We find differences in ...
-
(Oxford University PressRoyal Astronomical Society, 2013-04-12)We perform a Bayesian grid-based analysis of the solar l = 0, 1, 2 and 3 p modes obtained via BiSON in order to deliver the first Bayesian asteroseismic analysis of the solar composition problem. We do not find decisive ...
-
(EDP Sciences, 2008-06)Context. The identification of smaller and smaller signals from objects observed with a non-perfect instrument in a noisy environment poses a challenge for a statistically clean data analysis. Aims. We compute the probability ...
-
(American Astronomical Society, 2006-05)The [beta] Cephei star [delta] Ceti was considered one of the few monoperiodic variables in its class. Despite (or perhaps because of) its apparently simple oscillation spectrum, it has been challenging and controversial ...
-
(The American Astronomical Society, 2016-11-01)[Theta] Cygni is an F3 spectral type magnitude V=4.48 main-sequence star that was the brightest star observed by the original Kepler spacecraft mission. Short-cadence (58.8 s) photometric data using a custom aperture were ...
-
(Halifax, N.S. : Saint Mary's University, 2001)Stellar evolution models and their associated non-radial pulsation spectra are presented for the nearby stars [varepsilon] Eridani (K2 V), β Hydri (G2 IV), β Geminorum (K2 III). This analysis was performed in preparation ...
-
(Wiley-Blackwell, 2011-01-01)Observations of the A5p star KIC 8677585 obtained during the Kepler 10-d commissioning run with 1-min time resolution show that it is a rapidly oscillating Ap (roAp) star with several frequencies with periods near 10 min. ...
-
(IOP Publishing Limited, 2014-06-01)We compare evolved stellar models, which match Procyon’s mass and position in the HR diagram, to current groundbased asteroseismic observations. Diffusion of helium and metals along with two conventional core overshoot ...
-
(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 ...
-
(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 ...
-
(EDP Sciences, 2010-01)Context. Observations and analysis of solar-type oscillations in red-giant stars is an emerging aspect of asteroseismic analysis with a number of open questions yet to be explored. Although stochastic oscillations have ...
-
(EDP Sciences, 2012)Context. Solar-like oscillations have been observed by Kepler and CoRoT in several solar-type stars, thereby providing a way to probe the stars using asteroseismology. Aims. We provide the mode frequencies of the oscillations ...
-
(EDP Sciences, 2012-01)Context. Solar-like oscillations have been observed by Kepler and CoRoT in several solar-type stars. Aims. We study the variations in the stellar p-mode linewidth as a function of effective temperature. Methods. We study ...
-
(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 ...
Now showing items 1-20 of 24