Asteroseismic estimate of helium abundance of 16 Cyg A, B

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Verma, K (Author) Other; Faria, JP (Author) Other; Antia, HM (Author) Other; Basu, S (Author) Other; Mazumdar, A (Author) Other; Monteiro, MJPFG (Author) FCUP; Appourchaux, T (Author) Other; Chaplin, WJ (Author) Other; Garcia, RA (Author) Other; Metcalfe, TS (Author) Other

Conference proceedings International

Title: SPACE PHOTOMETRY REVOLUTION - COROT SYMPOSIUM 3, KEPLER KASC-7 JOINT MEETING

Final page: 06066

Symposium 3 on Space Photometry Revolution - CoRoT / Kepler KASC-7 Joint Meeting

Toulouse, FRANCE, JUL 06-11, 2014

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Other information

Authenticus ID: P-00H-KTY

DOI: 10.1051/epjconf/201510106066

Abstract (EN): The helium ionization zone in a star leaves a characteristic signature on its oscillation frequencies, which can be used to estimate the helium content in the envelope of the star. We use the oscillation frequencies of 16 Cyg A and B, obtained using 2.5 years of Kepler data, to estimate the envelope helium abundance of these stars. We find the envelope helium abundance to lie in the range 0.231-0.251 for 16 Cyg A and 0.218-0.266 for 16 Cyg B.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2