9 papers
The Kepler and TESS Asteroseismic Consortia - A Historical Overview
Mikkel N. Lund, Tiago L. Campante
This overview is, in short, about people. About an idea that grew into a consortium, then a community, and finally a way of doing asteroseismology in the space era. The Kepler Aste…
The Stellar Observations Network Group (SONG) -- A Legacy Archive of Stellar Time-Domain Spectroscopy
M. N. Lund, F. Grundahl, M. S. Fredslund +35
The Stellar Observations Network Group (SONG) network has operated for more than a decade, providing long-baseline, high-cadence spectroscopic observations of bright stars and the…
Granulation signatures as seen by Kepler short-cadence data. I. A decoupling between granulation and oscillation timescales for dwarfs
Jens R. Larsen, Mia S. Lundkvist, Martin B. Nielsen +3
Granulation is the observable signature of convection in envelopes of low-mass stars, forming the background in stellar power spectra. While well-studied in evolved giants, granula…
Asteroseismology of solar-like oscillators: emulating individual mode frequencies with a branching neural network
Owen J. Scutt, Guy R. Davies, Amalie Stokholm +6
Accurately measuring stellar ages and internal structures is challenging, but the inclusion of asteroseismic observables can substantially improve precision. However, the curse of…
Transformational astrophysics and exoplanet science with Habitable Worlds Observatory's High Resolution Imager
Vincent Van Eylen, Richard Massey, Saeeda Awan +167
Habitable Worlds Observatory (HWO) will be NASA's flagship space telescope of the 2040s, designed to search for life on other planets and to transform broad areas of astrophysics.…
Investigating magnetic activity cycles in solar-like oscillators using asteroseismic data from the K2 mission
Gleb Berloff, Anne-Marie Broomhall, George T. Hookway +3
We present the results of an investigation into the possible presence of magnetic activity cycles in stars observed in two observational campaigns by the K2 mission. This study was…