Zobrazeno 1 - 10
of 22 168
pro vyhledávání: '"RED giants"'
Autor:
Trabucchi, Michele, Pastorelli, Giada
We use one-dimensional hydrodynamic calculations combined with synthetic stellar population models of the Magellanic Clouds to study the onset of self-excited pulsation in luminous red giants. By comparing the results with OGLE observations in the pe
Externí odkaz:
http://arxiv.org/abs/2411.10341
Autor:
Vrard, M., Pinsonneault, M. H., Elsworth, Y., Hon, M., Kallinger, T., Kuszlewicz, J., Mosser, B., Garcia, R. A., Tayar, J., Bennett, R., Cao, K., Hekker, S., Loyer, L., Mathur, S., Stello, D.
Evolved cool stars have three distinct evolutionary status: shell Hydrogen-burning (RGB), core Helium and shell Hydrogen burning (RC), and double shell burning (AGB). Asteroseismology can distinguish between the RC and the other status, but distingui
Externí odkaz:
http://arxiv.org/abs/2411.03101
A recent investigation highlighted peculiar trends between the radii derived from surface brightness-colour relations (SBCRs) combined with Gaia DR3 parallaxes with respect to asteroseismic scaling relation radii from K2 data. [...] We investigated o
Externí odkaz:
http://arxiv.org/abs/2412.11606
Asteroseismic masses of globular cluster (GC) stars are invaluable to investigate stellar evolution. Previously, only two GCs have been seismically studied. We present new detections of solar-like oscillations in the clusters M9 and M19, focusing on
Externí odkaz:
http://arxiv.org/abs/2412.01089
Nearly all cool, evolved stars are solar-like oscillators, and fundamental stellar properties can be inferred from these oscillations with asteroseismology. Scaling relations are commonly used to relate global asteroseismic properties, the frequency
Externí odkaz:
http://arxiv.org/abs/2411.10520
We present a study of asteroseismically derived surface gravities, masses, and radii of a sample of red giant stars both with and without confirmed planetary companions using TESS photometric light curves. These red giants were drawn from radial velo
Externí odkaz:
http://arxiv.org/abs/2410.02051