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Pulsating red giant stars in eccentric binary systems discovered from Kepler space-based photometry
P. G. Beck, K. Hambleton, J. Vos +30
The unparalleled photometric data obtained by NASA's Kepler space telescope led to an improved understanding of red giant stars and binary stars. Seismology allows us to constrain…
Magnetic activity of F stars observed by Kepler
S. Mathur, R. A. Garcia, J. Ballot +6
The study of stellar activity is important because it can provide new constraints for dynamo models, when combined with surface rotation rates and the depth of the convection zone.…
Large Frame-Transfer Detectors for the MAIA Imager
Jesús Pérez Padilla, Simon Tulloch, Gert Raskin +4
MAIA, the Mercator Advanced Imager for Asteroseismology, is a new fast-cadence 3-channel photometric instrument. It is installed on the 1.2-m Mercator telescope at the Roque de Los…
Investigating magnetic activity of F stars with the it Kepler mission
S. Mathur, R. A. Garcia, J. Ballot +6
The dynamo process is believed to drive the magnetic activity of stars like the Sun that have an outer convection zone. Large spectroscopic surveys showed that there is a relation…
EL CVn-type binaries - Discovery of 17 helium white dwarf precursors in bright eclipsing binary star systems
P. F. L. Maxted, S. Bloemen, U. Heber +21
The star 1SWASP J024743.37-251549.2 was recently discovered to be a binary star in which an A-type dwarf star eclipses the remnant of a disrupted red giant star (WASP0247-25B). The…
MAIA, a three-channel imager for asteroseismology: instrument design
Gert Raskin, Steven Bloemen, Johan Morren +8
MAIA, an acronym for Mercator Advanced Imager for Asteroseismology, is a three-channel instrument that targets fast-cadence three-colour photometry, installed at the 1.2-m Mercator…
Binaries discovered by the MUCHFUSS project; FBS 0117+396: An sdB+dM binary with a pulsating primary
R. H. Østensen, S. Geier, V. Schaffenroth +16
The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (muchfuss) aims to discover subdwarf-B stars with massive compact companions such as overmassive wh…
Kepler's Unparalleled Exploration of the Time Dimension
William Welsh, Steven Bloemen, Kyle Conroy +15
We show that the Kepler spacecraft in two-reaction wheel mode of operation is very well suited for the study of eclipsing binary star systems. Continued observations of the Kepler…
Low-amplitude rotational modulation rather than pulsations in the CoRoT B-type supergiant HD 46769
C. Aerts, S. Simon-Diaz, C. Catala +16
{We aim to detect and interpret photometric and spectroscopic variability of the bright CoRoT B-type supergiant target HD\,46769 (). We also attempt to detect a magnetic fi…
Atmospheric Parameters of 169 F, G, K and M-type Stars in the Kepler Field
J. Molenda-Zakowicz, S. G. Sousa, A. Frasca +15
The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at deriving the effective tem…
KIC 11285625: a double-lined spectroscopic binary with a gamma Dor pulsator discovered from Kepler space photometry
J. Debosscher, C. Aerts, A. Tkachenko +8
We present the first binary modelling results for the pulsating eclipsing binary KIC 11285625, discovered by the Kepler mission. An automated method to disentangle the pulsation sp…
KIC 4544587: an Eccentric, Short Period Binary System with delta Sct Pulsations and Tidally Excited Modes
K. M. Hambleton, D. W. Kurtz, A. Prsa +7
We present Kepler photometry and ground based spectroscopy of KIC 4544587, a short-period eccentric eclipsing binary system with self-excited pressure and gravity modes, tidally ex…
Detection of a large sample of Gamma Dor stars from Kepler space photometry and high-resolution ground-based spectroscopy
A. Tkachenko, C. Aerts, A. Yakushechkin +10
The space-missions MOST, CoRoT, and Kepler deliver a huge amount of high-quality photometric data suitable to study numerous pulsating stars. Our ultimate goal is a detection and a…
Two new SB2 binaries with main sequence B-type pulsators in the Kepler field
P. I. Pápics, A. Tkachenko, C. Aerts +15
Context: OB stars are important in the chemistry and evolution of the Universe, but the sample of targets well understood from an asteroseismological point of view is still too lim…
Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1319
We present our current best estimate of the plausible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years,…