Asteroseismology

Asteroseismology (from Greek ἀστήρ, astēr, "star"; σεισμός, seismos, "earthquake"; and -λογία, -logia) also known as stellar seismology is the science that studies the internal structure of pulsating stars by the interpretation of their frequency spectra. Different oscillation modes penetrate to different depths inside the star. These oscillations provide information about the otherwise unobservable interiors of stars in a manner similar to how seismologists study the interior of Earth and other solid planets through the use of earthquake oscillations.

Asteroseismology provides the tool to find the internal structure of stars. The pulsation frequencies give the information about the density profile of the region where the waves originate and travel. The spectrum gives the information about its chemical constituents. Both can be used to give information about the internal structure.

Read more about AsteroseismologyOscillations, Wave Types, Solar Seismology, Space Missions, Red Giants and Asteroseismology

Other articles related to "asteroseismology":

Red Giants and Asteroseismology
... With the Kepler mission, asteroseismology of hundreds of relatively nearby red giants enabled these two types of red giant to be distinguished ... Asteroseismology showed this to indeed be the case with the core rotating at least ten times as fast as the surface ...
COROT - Discoveries - Asteroseismology - Additional Programmes
... In October 2009 the COROT mission was the subject of a special issue of the Astronomy and Astrophysics Journal, dedicated to the early results of the probe ... Several papers with results on the asteroseismic field were published ...
COROT - Overview - Spacecraft Design
... The asteroseismology CCDs are defocused by 760μm toward the dioptric objective to avoid saturation of the brightest stars ... with two each dedicated to the planetary detection and asteroseismology ... Each chain has one planetary detection CCD and one asteroseismology CCD ...