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A search for transits of GJ 581\lowercase{e} and characterization of the host star variability using MOST space telescope photometry
Diana Dragomir, Jaymie M. Matthews, Rainer Kuschnig +7
The GJ 581 system has been amply studied since its discovery in 2005: the number of known planets in the system has increased and their orbital parameters are among the most precis…
MOST observations of the Herbig Ae δ-Scuti star HD 34282
M. P. Casey, K. Zwintz, D. B. Guenther +10
MOST observations and model analysis of the Herbig Ae star HD 34282 (V1366 Ori) reveal δ-Scuti pulsations. 22 frequencies are observed, 10 of which confirm those previously identif…
Using MOST to reveal the secrets of the mischievous Wolf-Rayet binary CV Ser
Alexandre David-Uraz, Anthony F. J. Moffat, André-Nicolas Chené +8
The WR binary CV Serpentis (= WR113, WC8d + O8-9IV) has been a source of mystery since it was shown that its atmospheric eclipses change with time over decades, in addition to its…
The Mass of the Planet-hosting Giant Star Beta Geminorum Determined from its p-mode Oscillation Spectrum
A. P. Hatzes, M. Zechmeister, J. Matthews +7
We use precise radial velocity measurements and photometric data to derive the frequency spacing of the p-mode oscillation spectrum of the planet-hosting star Beta Gem. This spacin…
Non-detection of previously reported transits of HD 97658b with MOST photometry
Diana Dragomir, Jaymie M. Matthews, Andrew W. Howard +11
The radial velocity-discovered exoplanet HD 97658b was recently announced to transit, with a derived planetary radius of 2.93 \pm 0.28 R_{Earth}. As a transiting super-Earth orbiti…
Delta Scuti stars in the Praesepe cluster observed by the MOST satellite
M. Breger, M. Hareter, Markus Endl +8
The Praesepe cluster contains a number of Delta Sct and Gamma Dor pulsators. Asteroseismology of cluster stars is simplified by the common distance, age and stellar abundances. Sin…