Release note: Massive peak bagging of red giants in the Kepler field

Author(s)

T. Kallinger

Abstract

The NASA satellite Kepler has gathered about 1420 days-long photometric

time series for more than 20000 red giant stars. For about 6600 of them

also APOGEE spectroscopic parameters are available, making the sample of

high interest for various astrophysical investigations. To optimally

exploit the full wealth of the seismic information, extraction of mode

parameters of all significant individual frequencies is necessary.

However, the complex structure of the mixed mode pattern makes it

challenging to automate the peak bagging (i.e., the extraction of the

individual mode parameters from the stars power density spectra). Even

though several approaches have been successfully implemented, the

available results are still limited to a handful of stars. Here I

present frequencies, amplitudes, and lifetimes of more than a quarter of

a million oscillation modes of the spherical degree l=0 to 3, which have

been observed in 6179 Kepler red giants. The sample covers evolutionary

stages from the lower red-giant branch to high up the asymptotic giant

branch. The modes were extracted with the Automated Bayesian

Peak-Bagging Algorithm (ABBA) and are publicly available at

Organisation(s)

Department of Astrophysics

No. of pages

11

Publication date

06-2019

Austrian Fields of Science 2012

103004 Astrophysics

Keywords

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