84 citations · 108 across the 5 of their papers we have counts for
11 papers
A Multi-Instrument Investigation of the Frequency Stability of Oscillations Above the Acoustic Cut-Off Frequency with Solar Activity
K. Kosak, R. Kiefer, A. M. Broomhall
Below the acoustic cut-off frequency, oscillations are trapped within the solar interior and become resonant. However, signatures of oscillations persist above the acoustic cut-off…
They Do Change After All: 25 Years of GONG Data Reveal Variation of p-Mode Energy Supply Rates
René Kiefer, Anne-Marie Broomhall
It has been shown over and over again that the parameters of solar p modes vary through the solar activity cycle: frequencies, amplitudes, lifetimes, energies. However, so far, the…
Empirical Relations for the Sensitivities of Solar-like Oscillations to Magnetic Perturbations
René Kiefer, Anne-Marie Broomhall
Oscillation mode frequencies of stars are typically treated as static for a given stellar model. However, in reality they can be perturbed by time varying sources such as magnetic…
Age dating of an early Milky Way merger via asteroseismology of the naked-eye star Indi
William J. Chaplin, Aldo M. Serenelli, Andrea Miglio +81
Over the course of its history, the Milky Way has ingested multiple smaller satellite galaxies. While these accreted stellar populations can be forensically identified as kinematic…
Signatures of magnetic activity: On the relation between stellar properties and p-mode frequency variations
A. R. G. Santos, T. L. Campante, W. J. Chaplin +12
In the Sun, the properties of acoustic modes are sensitive to changes in the magnetic activity. In particular, mode frequencies are observed to increase with increasing activity le…
Seismic Signatures of Stellar Magnetic Activity -- What Can We Expect from TESS?
René Kiefer, Anne-Marie Broomhall, Warrick H. Ball
Asteroseismic methods offer a means to investigate stellar activity and activity cycles as well as to identify those properties of stars which are crucial for the operation of stel…