Pulsation periods in the Delta Scuti star HR 1170

Details Pulsation periods in the Delta Scuti star HR 1170 Pulsation periods in the Delta Scuti star HR 1170

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.164...87o&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 164, no. 1, Feb. 1990, p. 87-93.

Astronomy and Astrophysics

Astrophysics

1

Stellar Oscillations, Variable Stars, Fourier Analysis, Least Squares Method, Light Curve, Stellar Color

Scientific paper

All known V data from the literature for the Delta Scuti star HR 1170 have been reanalyzed by using single-frequency Fourier and multiple-frequency least-squares analysis. The calculated periods are P1 = 0.09942 and P2 = 0.08392 days. The second frequency has not been found before, and gives better residuals and almost constant amplitudes for the individual data sets. The period ratio and Q values indicate that this star is not pulsating in pure radial modes.

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