4 papers
Hidden oscillations in plain sight: identification of seismically unresolved red-giant asteroseismic binary candidates
Jeong Yun Choi, Francisca Espinoza-Rojas, Saskia Hekker
Light curves of oscillating stars provide valuable insights into the stellar interiors. When oscillations from a pair of stars are captured within a single photometric aperture, th…
The sensitivity and behaviour of the curvature in the échelle diagram of red-giant stars
S. Hekker, Y. Elsworth, S. Basu +5
In the convective envelopes of relatively cool stars, oscillations are excited by turbulent convection. In these so-called solar-like oscillators, radial oscillation modes appear a…
Red giant asteroseismic binaries in the Kepler field
Francisca Espinoza-Rojas, Nathalie ThemeÃl, Saskia Hekker
Systems in which two oscillating stars are observed in the same light curve, so-called asteroseismic binaries (ABs), arise from either chance alignments or gravitationally bound st…
Power density spectra morphologies of seismically unresolved red-giant asteroseismic binaries
Jeong Yun Choi, Francisca Espinoza-Rojas, Quentin Coppée +1
Asteroseismic binaries are two oscillating stars detected in a single light curve. These systems provide robust constraints on stellar models from the combination of dynamical and…