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J/A+AS/103/1 ubvy Photometry of magnetic CP stars (Adelman+ 1994)
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ubvy photometry of the magnetic chemically peculiar stars 63 Andromedae,
HD 192913, HR 8240, and 108 Aquarii
Adelman S.J., Knox Jr J.R.
<Astron. Astrophys. Suppl. Ser. 103, 1 (1994)>
=1994A&AS..103....1A
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ADC_Keywords: Stars, Ap; Photometry, uvby
Keywords: stars: individual 63 And , HD 192913 , HR 8240 , 108 Aqr -
stars: chemically peculiar - stars: variables
Abstract:
Differential Stroemgren uvby photometric observations from the Four
College Automated Photoelectric Telescope of four magnetic Chemically
Peculiar stars are presented. We refined the period of 63 And to 4.1890
days. The period of the sharp-lined Si star HD 192913 is 16.840 days, a
value close to, but slightly different from published values. HR 8240, a
sharp-lined Si star, is found not to be a photometric variable. Comparison
of four color photometry of 108 Aqr by Morrison and Wolff and from the
Four College APT indicates that subtle changes in the shapes of the light
curves, especially that for u, have occurred suggesting that this star may
be precessing.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 76 81 uvby photometry of 63 And
table2.dat 76 87 uvby photometry of HD 192913
table3.dat 76 36 uvby photometry of HR 8240
table4.dat 76 48 uvby photometry of 108 Aqr
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See also:
J/A+AS/106/333 : (stars alpha And, HD 184905, HR 8216, and HR 8434)
J/A+AS/114/253 : (stars HD 11187, HD 14940, HD 15144, 20 Eri & HR 8933)
J/PASP/109/9 : (stars HR 1643, Theta Aur, 49 Cam, and HR 3724)
J/A+AS/122/249 : (HD 32633, 25 Sex, HR 7224 & HD 200311) (Adelman, 1997)
J/A+AS/125/65 : (stars HD 37776, HR 2258, HR 6958 & 108 Aqr)
J/A+AS/125/497 : (stars Theta Vir and 109 Vir)
J/A+AS/133/197 : (33 Tau, HD 50169 and HR 7786)
J/A+AS/134/53 : (HD 15980, HR 1094, 33 Gem and HD 115708)
J/A+AS/136/111 : (HD 35298, 19 Lyr, HD 192678 and HR 8216)
J/A+AS/136/379 : (45 Leo, HR 4330, 49 Her and HR 6718)
Byte-by-byte Description of file: table1.dat table2.dat table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Date
15- 20 F6.3 mag u(v-c) u filter variable-comparison
23- 28 F6.3 mag u(ch-c) u filter check-comparison
31- 36 F6.3 mag v(v-c) v filter variable-comparison
39- 44 F6.3 mag v(ch-c) v filter check-comparison
47- 52 F6.3 mag b(v-c) b filter variable-comparison
55- 60 F6.3 mag b(ch-c) b filter check-comparison
63- 68 F6.3 mag y(v-c) y filter variable-comparison
71- 76 F6.3 mag y(ch-c) y filter check-comparison
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Finally average and standard deviation:
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u v b y
Star v-c ch-c v-c ch-c v-c ch-c v-c ch-c
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63 And (Period 2448173.7296-2448287.5913)
average -0.352 -1.059 0.163 -1.405 0.223 -1.101 0.255 -0.833
std. dev. 0.014 0.004 0.009 0.005 0.008 0.005 0.006 0.005
(Period 2448530.7781-2448287.5884)
average -0.340 1.348 0.166 0.991 0.223 1.252 0.254 1.526
std. dev. 0.018 0.006 0.011 0.006 0.010 0.006 0.010 0.006
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HD 192913 (All period)
average -1.889 1.327 -1.438 1.100 -1.332 1.002 -1.260 0.981
std .dev. 0.025 0.011 0.014 0.004 0.021 0.006 0.021 0.008
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HR 8240 (All period)
average -0.590 0.317 -0.512 0.718 -0.144 0.478 0.233 0.242
std. dev. 0.007 0.007 0.005 0.006 0.003 0.005 0.004 0.005
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108 Aqr (All period)
average -0.342 0.434 -0.109 0.654 -0.106 0.678 -0.057 0.696
std. dev. 0.018 0.007 0.022 0.006 0.020 0.007 0.016 0.006
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(End) Patricia Bauer [CDS] 13-Oct-1993