Inversions of Stellar Structure From Asteroseismic Data
نویسندگان
چکیده
The advent of space-based photometry missions in the early 21st century enabled application to asteroseismic data advanced inference techniques until then restricted field helioseismology. high quality observations, discovery mixed modes evolved solar-like oscillators and need for an improvement determination stellar fundamental parameters such as mass, radius age led development sophisticated modelling tools, amongst which seismic inversions play a key role. In this review, we will discuss existing inversion internal structure distant stars adapted from helio-to asteroseismology. We present results obtained various Kepler targets, their coupling other well limitations analyses perspectives future developments these approaches context current TESS PLATO mission, exploitation observed post-main sequence oscillators, variational formulations might not provide sufficient accuracy.
منابع مشابه
Determination of Stellar Radii from Asteroseismic Data
The NASA Kepler mission is designed to find planets through transits. Accurate and precise radii of the detected planets depend on knowing the radius of the host star accurately, which is difficult unless the temperature and luminosity of the star are known precisely. Kepler, however, has an asteroseismology programme that will provide seismic variables that can characterise stellar radii easil...
متن کاملAsteroseismic Signatures of Stellar Magnetic Activity Cycles
Observations of stellar activity cycles provide an opportunity to study magnetic dynamos under many different physical conditions. Space-based asteroseismology missions will soon yield useful constraints on the interior conditions that nurture such magnetic cycles, and will be sensitive enough to detect shifts in the oscillation frequencies due to the magnetic variations. We derive a method for...
متن کاملA Stellar Model-fitting Pipeline for Asteroseismic Data from the Kepler Mission
Over the past two decades, helioseismology has revolutionized our understanding of the interior structure and dynamics of the Sun. Asteroseismology will soon place this knowledge into a broader context by providing structural data for hundreds of Sun-like stars. Solar-like oscillations have already been detected from the ground in several stars, and NASA’s Kepler mission is poised to unleash a ...
متن کاملOn Inverting Asteroseismic Data
Some issues of inverting asteroseismic frequency data are discussed, including the use of model calibration and linearized inversion. An illustrative inversion of artiicial data for solar-type stars, using least-squares tting of a small set of basis functions, is presented. A few details of kernel construction are also given.
متن کاملAsteroseismic Signatures of Evolving Internal Stellar Magnetic Fields
Recent asteroseismic analyses indicate the presence of strong (B 10 G) magnetic fields in the cores of many red giant stars. Here, we examine the implications of these results for the evolution of stellar magnetic fields, and we make predictions for future observations. Those stars with suppressed dipole modes indicative of strong core fields should exhibit moderate but detectable quadrupole ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Astronomy and Space Sciences
سال: 2022
ISSN: ['2296-987X']
DOI: https://doi.org/10.3389/fspas.2022.942373