Abstract
view Abstract Citations (10) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Rediscussion of Delta Scuti. Fitch, W. S. Abstract Fath's photometric measures of Scuti have been analyzed by performing least-squares fits of his observations to sine-term expansions in various periods. The results of the analysis show that the following incommensurable, but related, periods are excited in this star: the fundamental Po = 0.193770 day, the second overtone P2 = 0.095129 day, and the resonance term PR = 0.186872 day. A similar treatment of the radial-velocity observations reported by Paddock and Struve generally confirms the results obtained in the discussion of the light-variation. Maximum light precedes maximum expansion velocity by about 0.07 period for the three terms P0, PR, and P2 individually. The light- and velocity variations are approximately represented by equations (1) and (2) of this . Publication: The Astrophysical Journal Pub Date: September 1960 DOI: 10.1086/146940 Bibcode: 1960ApJ...132..430F full text sources ADS | data products SIMBAD (1)
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