HR 1170 and HR 7331, two nonradial Delta Scuti pulsators

Details HR 1170 and HR 7331, two nonradial Delta Scuti pulsators HR 1170 and HR 7331, two nonradial Delta Scuti pulsators

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84.1046p&link_type=abstract

Astronomical Journal, vol. 84, July 1979, p. 1046-1055.

Astronomy and Astrophysics

Astronomy

19

Astronomical Photometry, Hertzsprung-Russell Diagram, Pulsars, Scutum Constellation, Variable Stars, Electrophotometers, Fourier Analysis, Frequency Response, Light Curve, Phase Shift, Statistical Distributions

Scientific paper

Multiperiod analysis of the photometry of HR 1170 and HR 7331 by the MFF (multiple-frequency fitting method) yield period ratios of 0.919 and 0.939, respectively, for these stars. These period ratios are consistent with the interpretation of nonradial pulsation in Delta Scuti-type stars. Taking these together with the previously known nonradial pulsator, l Mon, a linear relation seems to emerge between rotational velocity and period ratio, although the discovery of more nonradial pulsators is necessary in order to establish this relationship firmly.

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