Detection of 13 pulsation modes for CD-24 7599 by WET observations

Details Detection of 13 pulsation modes for CD-24 7599 by WET observations Detection of 13 pulsation modes for CD-24 7599 by WET observations

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995dssn....8....1h&link_type=abstract

Delta Scuti Star Newsletter, Issue 8, p. 1-2.

Physics

Scientific paper

86 hours of new temporal spectroscopic observations of the Delta Scuti star CD-24 7599 were acquired in May, 1994. All 7 pulsation frequencies discovered in WET data obtained in 1992 were confirmed. However, conspicious amplitude variations occurred within the two years. By analysing both data sets together, we are able to establish the presence of 6 further pulsation modes. All 13 modes are confined to a frequency interval corresponding to only 2 or 3 radial overtones. Thus, CD-24 7599 is a very promising candidate for Delta Scuti star asteroseismology. A poster paper including all the participants of the campaign as co-authors will be presented at IAU Colloquium 155 in Cape Town in February, 1995.

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