J/A+A/390/1023        uvby photometry of 4 CP stars             (Adelman+, 2002)

uvby Photometry of the CP stars HR 194, HD 32966, HD 171782, and HR 7911 Adelman S.J., Meadows S.A. <Astron. Astrophys. 390, 1023 (2002)> =2002A&A...390.1023A 2002A&A...390.1023A
ADC_Keywords: Stars, peculiar ; Photometry, uvby Keywords: stars: chemically peculiar - stars: individual: HR 194 - stars: individual: HD 32966 - stars: individual: HD 171782 - stars: individual: HR 7911 Abstract: Differential Stroemgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the CP stars HR 149 and HR 7911 and the mCP stars HD 32966 and HD 171782. The Hg-Mn star HR 149 is found to be constant while HR 7911 with a period of 5.9617 days probably has a component which is a magnetic CP star. Improved periods were derived for HD 32966 and HD 171782 of 3.0927 and 4.4674 days, respectively. The former is a rather large amplitude mCP star. Both have at least one light curve different in shape from the others observed. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) (File) ---------------------------------------------------------- 00 36 20.1 +27 15 17 HR 149 = HD 3322 (table2.dat) 20 39 33.3 +40 34 47 HR 7911 = HD 197018 (table3.dat) 05 06 22.2 -14 41 48 HD 32966 (table4.dat) 18 36 29.6 +05 17 19 HD 171782 (table5.dat) ---------------------------------------------------------- File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 68 95 uvby photometry of HR 149 table3.dat 68 101 uvby photometry of HR 7911 table4.dat 68 66 uvby photometry of HD 32966 table5.dat 68 64 uvby photometry of HD 171782 tablea.dat 125 15 Average photometry -------------------------------------------------------------------------------- See also: J/A+AS/103/1 : 63 And, HD 192913, HR 8240 & 108 Aqr (Adelman+ 1994) J/A+AS/106/333 : Alpha And, HD 184905, HR 8216 & HR 8434 (Adelman+ 1994) J/A+AS/111/41 : 56 Tauri, HD 111133, HD 126515 and HD 215441 (Adelman+ 1994) J/A+AS/114/253 : HD 11187, HD 14940, HD 15144, 20 Eri, HR 8933 (Adelman+ 1995) J/PASP/109/9 : HR 1643, Theta Aur, 49 Cam, and HR 3724 (Adelman 1997) J/A+AS/122/249 : HD32633, 25 Sex, HR 7224, and HD 200311 (Adelman, 1997) J/A+A/329/579 : uvby photometry of theta CrB (Fabregat+ 1998) J/A+AS/123/445 : uvby photometry of metallic + Hg-Mn stars (Adelman 1997) J/A+AS/125/65 : HD 37776, HR 2258, HR 6958 & 108 Aqu (Adelman, 1997) J/A+AS/125/497 : Theta Vir and 109 Vir uvby photometry (Adelman 1997) J/A+AS/128/245 : AR Aur, 3 Hya, 49 Cnc & BX Boo (Adelman 1997) J/A+A/333/952 : BVRI photometry of HR 1105 (Adelman 1998) J/A+AS/136/379 : 45 Leo, HR 4330, 47 Her & HR 6718 (Adelman+ 1999) J/A+AS/146/13 : 20 Eri, HR 1297, 12 CMa & HD 134214 (Adelman 2000) J/A+A/368/225 : HR 5341, HD 142070, HR 6967 & HR 8434 (Adelman, 2001) J/A+A/401/357 : 60 Tau, HR 1528, HR 8216, HR 8770 (Adelman+, 2003) Byte-by-byte Description of file: table[2-5].dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 12 F12.4 d HJD Heliocentric Julian Date 14- 19 F6.3 mag u(v-c) Variable-comparison (v-c) u magnitude 21- 26 F6.3 mag u(ch-c) Check-comparison (ch-c) u magnitude 28- 33 F6.3 mag v(v-c) Variable-comparison (v-c) v magnitude 35- 40 F6.3 mag v(ch-c) Check-comparison (ch-c) v magnitude 42- 47 F6.3 mag b(v-c) ? Variable-comparison (v-c) b magnitude 49- 54 F6.3 mag b(ch-c) Check-comparison (ch-c) b magnitude 56- 61 F6.3 mag y(v-c) Variable-comparison (v-c) y magnitude 63- 68 F6.3 mag y(ch-c) Check-comparison (ch-c) y magnitude -------------------------------------------------------------------------------- Byte-by-byte Description of file: tablea.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1 I1 --- Table [2,5] Table number with detailed photometry 3- 11 A9 --- Name Star name 13- 16 I4 yr Year1 Period of observation 17 A1 --- --- [-] 18- 21 I4 yr Year2 Period of observation 23- 28 F6.3 mag u(v-c) Variable-comparison (v-c) u magnitude 30- 34 F5.3 mag e_u(v-c) rms uncertainty on u(v-c) 36- 41 F6.3 mag u(ch-c) Check-comparison (ch-c) u magnitude 43- 47 F5.3 mag e_u(ch-c) rms uncertainty on u(ch-c) 49- 54 F6.3 mag v(v-c) Variable-comparison (v-c) v magnitude 56- 60 F5.3 mag e_v(v-c) rms uncertainty on v(v-c) 62- 67 F6.3 mag v(ch-c) Check-comparison (ch-c) v magnitude 69- 73 F5.3 mag e_v(ch-c) rms uncertainty on (ch-c) 75- 80 F6.3 mag b(v-c) ? Variable-comparison (v-c) b magnitude 82- 86 F5.3 mag e_b(v-c) ? rms uncertainty on b(v-c) 88- 93 F6.3 mag b(ch-c) Check-comparison (ch-c) b magnitude 95- 99 F5.3 mag e_b(ch-c) rms uncertainty on b(ch-c) 101-106 F6.3 mag y(v-c) Variable-comparison (v-c) y magnitude 108-112 F5.3 mag e_y(v-c) rms uncertainty on y(v-c) 114-119 F6.3 mag y(ch-c) Check-comparison (ch-c) y magnitude 121-125 F5.3 mag e_y(ch-c) rms uncertainty on y(ch-c) -------------------------------------------------------------------------------- Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 24-May-2002
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