5 papers
Oscillations of red giant stars with magnetic damping in the core. II. Mixed mode visibilities on the red-giant branch
Jonas Müller, Saskia Hekker
Mode visibilities can be estimated from observed power spectra or from theory by making assumptions about the damping processes occurring in the star. However, a quantitative compa…
Facing the phase: Gravity-mode offset and buoyancy glitches in red--giant branch stars
T. van Lier, J. Müller, S. Hekker
With the increasing precision of asteroseismic observations, it becomes possible to reliably measure oscillation properties of an increasing number of stars. Interpreting these mea…
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…
Asymptotic power spectra and visibilities of damped mixed modes
Jonas Müller, Quentin Coppée, Jordan Van Beeck +2
Recent observational studies of red giant stars have estimated the visibility of their mixed oscillation modes, which is a proxy of the average energy of these modes. Among other t…