10-14 July 2016
Africa/Johannesburg timezone
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Running mean techniques of extracting observed frequencies in Kepler red giant stars

11 Jul 2016, 12:20
Spartan 1

Spartan 1


Mr Patrick Oyirwoth Abedigamba (North-West University)

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We have developed a running mean techniques of extracting observed frequencies (individual frequencies) for red giant stars showing solar-like oscillations using data from Kepler space mission. The frequencies are extracted from the periodograms (power spectrum). We use the techniques to study the evolutionary stages (status) of red giant stars by constructing echelle diagrams and measuring the period spacing. Based on the value of the calculated period spacing, we place the red giant stars into red giant branch, red giant clump and secondary red clump. On applying the techniques to stars with well known evolutionary status, we are able to arrive at the same conclusion as other techniques.

Primary author

Mr Patrick Oyirwoth Abedigamba (North-West University)


Dr Luis A Balona (South African Astronomical Observatory) Prof. Thebe Medupe (North-West University)

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