145 citations · 670 across the 28 of their papers we have counts for
7 papers · 1 filter
Optical atmospheric extinction over Cerro Paranal
F. Patat, S. Moehler, K. O'Brien +14
Aims: The present study was conducted to determine the optical extinction curve for Cerro Paranal under typical clear-sky observing conditions, with an accuracy of 0.01 mag/airmass…
Mode identification from monochromatic amplitude and phase variations for the rapidly pulsating subdwarf B star EC 20338-1925
S. K. Randall, G. Fontaine, P. Brassard +1
We obtain time-series spectrophotometry observations at the VLT with the aim of partially identifying the dominant oscillation modes in the rapidly pulsating subdwarf B star EC 203…
First Kepler results on compact pulsators I. Survey target selection and the first pulsators
R. H. Østensen, R. Silvotti, S. Charpinet +25
We present results from the first two quarters of a survey to search for pulsations in compact stellar objects with the Kepler spacecraft. The survey sample and the various methods…
EXOTIME: searching for planets around pulsating subdwarf B stars
Sonja Schuh, Roberto Silvotti, Ronny Lutz +27
In 2007, a companion with planetary mass was found around the pulsating subdwarf B star V391 Pegasi with the timing method, indicating that a previously undiscovered population of…
V391 Peg: identification of the two main pulsation modes from ULTRACAM u'g'r' amplitudes
Roberto Silvotti, Suzanna Randall, Vik S. Dhillon +5
V391 Peg (HS2201+2610) is an extreme horizontal branch subdwarf B (sdB) star, it is an hybrid pulsator showing p- and g-mode oscillations, and hosts a 3.2/sini M_Jup planet at an o…
Ground-based follow-up in relation to Kepler Asteroseismic Investigation
K. Uytterhoeven, M. Briquet, H. Bruntt +12
The Kepler space mission, successfully launched in March 2009, is providing continuous, high-precision photometry of thousands of stars simultaneously. The uninterrupted time-serie…