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J/BaltA/14/41     BV(RI)C photometry of 4 S-type AGB      (Adelman+, 2005)

BVRI photometry of the S-type asymptotic branch giant stars RS Cnc, ST Her, OP Her, and HR Peg. Adelman S.J., Dennis J.W.III <Baltic Astron., 14, 41 (2005)> =2005BaltA..14...41A
ADC_Keywords: Stars, variable ; Stars, giant ; Stars, S ; Photometry, UBVRI Keywords: stars: AGB and post-AGB - stars: variable - stars: individual: RS Cnc, ST Her, OP Her, HR Peg Abstract: We present FCAPT differential Johnson BV and Cousins RI photometry and radial velocities of the S-type AGB stars RS Cnc, ST Her, OP Her and HR Peg. We performed multiperiodic analyses of this photometry to learn about the frequencies of variability. The B, V, R, and I light curves are generally in phase. RS Cnc has periods of order 122 and 248 days. Repeating the analyses using our data with the extensive V and R photometry of Percy et al. (2001PASP..113..983P) shows several periods near 248 days and a period near 135 days. The primary period of ST Her appears to be about 144 days although it is manifested most readily by its 103 day alias. OP Her and HR Peg exhibit periods, respectively, of about 416 and 116 days and of 54 and 74 days. The differences between our data set and the larger one of Percy et al. (2001PASP..113..983P) for RS Cnc raises important questions about multiperiodic analyses for AGB stars. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) (File) ---------------------------------------------------------- 09 10 38.8 +30 57 47 RS Cnc (table2.dat) 17 56 48.5 +45 21 03 OP Her (table4.dat) 15 50 46.6 +48 28 59 ST Her (table6.dat) 22 54 35.6 +16 56 31 HR Peg (table8.dat) ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 68 215 Photometry of RS Cnc table4.dat 68 172 Photometry of OP Her table6.dat 68 98 Photometry of ST Her table8.dat 68 188 Photometry of HR Peg tablea.dat 122 16 Average photometry
Byte-by-byte Description of file: table2.dat table4.dat table6.dat table8.dat
Bytes Format Units Label Explanations
1- 12 F12.4 d HJD Heliocentric Julian Date 14- 19 F6.3 mag B(v-c) variable-comparison (v-c) Johnson B magnitude 21- 26 F6.3 mag B(ch-c) check-comparison (ch-c) Johnson B magnitude 28- 33 F6.3 mag V(v-c) variable-comparison (v-c) Johnson V magnitude 35- 40 F6.3 mag V(ch-c) check-comparison (ch-c) Johnson V magnitude 42- 47 F6.3 mag Rc(v-c) variable-comparison (v-c) Cousins R magnitude 49- 54 F6.3 mag Rc(ch-c) check-comparison (ch-c) Cousins R magnitude 56- 61 F6.3 mag Ic(v-c) variable-comparison (v-c) Cousins I magnitude 63- 68 F6.3 mag Ic(ch-c) check-comparison (ch-c) Cousins I magnitude
Byte-by-byte Description of file: tablea.dat
Bytes Format Units Label Explanations
1 I1 --- Table [2-8] Table number with detailed photometry 3- 8 A6 --- Name Star name 10- 18 A9 --- Years Period of observation 20- 25 F6.3 mag Bmag1 Variable-comparison (v-c) Johnson B magnitude 27- 31 F5.3 mag e_Bmag1 rms uncertainty on Bmag1 33- 38 F6.3 mag Bmag2 Check-comparison (ch-c) Johnson B magnitude 40- 44 F5.3 mag e_Bmag2 rms uncertainty on Bmag2 46- 51 F6.3 mag Vmag1 Variable-comparison (v-c) Johnson V magnitude 53- 57 F5.3 mag e_Vmag1 rms uncertainty on Vmag1 59- 64 F6.3 mag Vmag2 Check-comparison (ch-c) Johnson V magnitude 66- 70 F5.3 mag e_Vmag2 rms uncertainty on Vmag2 72- 77 F6.3 mag Rcmag1 Variable-comparison (v-c) Cousins R magnitude 79- 83 F5.3 mag e_Rcmag1 rms uncertainty on Rcmag1 85- 90 F6.3 mag Rcmag2 Check-comparison (ch-c) Cousins R magnitude 92- 96 F5.3 mag e_Rcmag2 rms uncertainty on Rcmag2 98-103 F6.3 mag Icmag1 Variable-comparison (v-c) Cousins I magnitude 105-109 F5.3 mag e_Icmag1 rms uncertainty on Icmag1 111-116 F6.3 mag Icmag2 Check-comparison (ch-c) Cousins I magnitude 118-122 F5.3 mag e_Icmag2 rms uncertainty on Icmag2
Acknowledgements: Saul Adelman, adelmans(at)adelal.citadel.edu
(End) Patricia Vannier [CDS] 27-Jan-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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