11 citations · 21 across the 6 of their papers we have counts for
7 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 Themeßl, 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…
New red giants in NGC 6791 and NGC 6819 using Kepler superstamps
A. Covelo-Paz, N. Themeßl, F. Espinoza-Rojas +1
Context. Stars that are members of stellar clusters are assumed to be formed at the same time and place from material with the same initial chemical composition. These additional c…
Unraveling UBC 274: a morphological, kinematical and chemical analysis of a disrupting open cluster
L. Casamiquela, J. Olivares, Y. Tarricq +8
We do a morphological, kinematic and chemical analysis of the disrupting cluster UBC 274 (2.5 Gyr, pc) to study its global properties. We use HDBSCAN to obtain a new membe…