CDROM/AJ/V106/P2493 SX Phe (Kim, McNamara & Christensen 1993) ================================================================================ A Photometric and Spectrographic Study of SX Phoenicis Chulhee Kim, D. H. McNamara, & C. G. Christensen 1993, AJ, 106, 2493 =1993AJ....106.2493K ================================================================================ Abstract: Simultaneous photometric (uvbyBeta) and spectrographic observations of SX Phe are described. Analysis of the light and velocity frequency spectra are performed. It is shown that all frequencies detected are harmonics or combinations of the fundamental and first harmonic frequencies. Intrinsic (b-y) and c1 values used in conjunction with a model-atmosphere grid appropriate for a star with [M/H] = -1.0 yields = 7360 K and = 3.90. Standard evolutionary models indicate the mass is 1.13 Msun and value is +2.9. The radial- velocity data indicate a mean radial velocity of -37 km/s and a total range of 38 km/s. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.dat 52 514 uvbyBeta photometry of SX Phoenicis table2.dat 20 166 Radial velocity of SX Phoenicis -------------------------------------------------------------------------------- Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 A6 --- Name *Star name 7- 9 3X --- --- Blank 10-16 F7.3 day HJD Heliocentric Julian Date - 2443000 17-24 F8.3 mag y y magnitude 25-31 F7.3 mag b-y b-y color 32-38 F7.3 mag c1 []? c1 index 39-45 F7.3 mag m1 m1 index 46-52 F7.3 mag Beta Beta -------------------------------------------------------------------------------- Notes for file: table1.dat -------------------------------------------------------------------------------- Name: Star name, 'SX Phe' or 'COMP' for the comparison star, HD 223011 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1-12 F12.4 day HJD Heliocentric Julian Date 13-20 F8.2 km/s Vr Radial velocity -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 30-Mar-1994