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J/A+AS/122/249 uvby photometry of 4 CP stars (Adelman, 1997)
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Stroemgren uvby photometry of the magnetic chemically peculiar stars
HD 32633, 25 Sex, HR 7224, and HD 200311
Adelman S.J.
<Astron. Astrophys. Suppl. Ser. 122, 249 (1997)>
=1997A&AS..122..249A (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, peculiar ; Photometry, uvby
Keywords: stars: individual: HD 32633, 25 Sex, HR 7224, HD 200311 -
stars: chemically peculiar
Abstract:
Differential Stroemgren uvby photometric observations from the Four
College Automated Photoelectric Telescope refine the rotational
periods and define the shapes of the light curves of four magnetic
Chemically Peculiar stars. HD 32633 (P=6.43000d) exhibits an in-phase
variability with asymmetrically shaped light curves. 25 Sex
(P=4.37900d) has a complex variability with the v, b, and y light
variability crudely in phase, but quite different from that of u.
HR 7224 (P=1.123095d) shows in-phase variability with two nearly equal
secondary minima. HD 200311 (P=26.0042d), which was previous thought
to be a long period variable, is found to be a modest photometric
variable.
Objects:
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RA (2000) DE Designation(s)
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05 06 08.2 +33 55 09 HD 32633
10 23 26.6 -04 04 27 25 Sex = HD 90044
18 58 52.6 +69 31 50 HR 7224 = HD 177410
21 01 14.1 +43 43 19 HD 200311
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 68 91 HD 32633 photometry
table3 68 109 25 Sex photometry
table4 68 154 HR 7224 photometry
table5 68 156 HD 200311 photometry
tablea 117 17 Average photometry
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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/114/253 : HD11187, HD14940, HD15144, 20 Eri & HR8933 (Adelman+, 1995)
J/A+AS/122/249 : HD 32633, 25 Sex, HR 7224 & HD 200311 (Adelman, 1997)
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 Aqr (Adelman 1997)
J/PASP/109/9 : HR 1643, Theta Aur, 49 Cam, and HR 3724 (Adelman 1997)
J/A+AS/125/497 : Theta Vir and 109 Vir uvby photometry (Adelman 1997)
J/A+AS/133/197 : 33 Tau, HD 50169 & HR 7786 (Adelman+ 1998)
J/A+AS/134/53 : HD 15980, HR 1094, 33 Gem and HD 115708 (Adelman 1999)
J/A+AS/136/111 : HD 35298, 19 Lyr, HD 192678 and HR 8216 (Adelman 1999)
J/A+AS/136/379 : 45 Leo, HR 4330, 49 Her and HR 6718 (Adelman+ 1999)
Byte-by-byte Description of file: table2 table3 table4 table5
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian Date
14- 19 F6.3 mag umag1 Variable-comparison (v-c) u magnitude
21- 26 F6.3 mag umag2 Check-comparison (ch-c) u magnitude
28- 33 F6.3 mag vmag1 Variable-comparison (v-c) v magnitude
35- 40 F6.3 mag vmag2 Check-comparison (ch-c) v magnitude
42- 47 F6.3 mag bmag1 Variable-comparison (v-c) b magnitude
49- 54 F6.3 mag bmag2 Check-comparison (ch-c) b magnitude
56- 61 F6.3 mag ymag1 Variable-comparison (v-c) y magnitude
63- 68 F6.3 mag ymag2 Check-comparison (ch-c) y magnitude
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Byte-by-byte Description of file: tablea
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 16 A6 --- Per Period considered (1)
18- 23 F6.3 mag umag1 Variable-comparison (v-c) u magnitude
25- 29 F5.3 mag e_umag1 rms uncertainty on umag1
31- 36 F6.3 mag umag2 Check-comparison (ch-c) u magnitude
38- 42 F5.3 mag e_umag2 rms uncertainty on umag2
44- 48 F5.3 mag vmag1 Variable-comparison (v-c) v magnitude
50- 54 F5.3 mag e_vmag1 rms uncertainty on vmag1
56- 61 F6.3 mag vmag2 Check-comparison (ch-c) v magnitude
63- 67 F5.3 mag e_vmag2 rms uncertainty on vmag2
69- 73 F5.3 mag bmag1 Variable-comparison (v-c) b magnitude
75- 79 F5.3 mag e_bmag1 rms uncertainty on bmag1
81- 86 F6.3 mag bmag2 Check-comparison (ch-c) b magnitude
88- 92 F5.3 mag e_bmag2 rms uncertainty on bmag2
94- 98 F5.3 mag ymag1 Variable-comparison (v-c) y magnitude
100-104 F5.3 mag e_ymag1 rms uncertainty on ymag1
106-111 F6.3 mag ymag2 Check-comparison (ch-c) y magnitude
113-117 F5.3 mag e_ymag2 rms uncertainty on ymag2
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Note (1): For HD 32633 : year2: From 2448543.9111 to 2448546.9967
year3: From 2448546.9967 to 2449416.6549
year4: From 2449645.9468 to 2449792.6202
year5: From 2449986.8909 to 2450039.9390
For 25 Sex : year2: From 2448695.7385 to 2448721.7129
year4: From 2449009.7950 to 2449118.6704
year5: From 2449334.9544 to 2449470.6687
year6: From 2449684.9934 to 2449839.6589
For HR 7224 : year4: From 2449439.9787 to 2449548.7687
year5: From 2449611.6324 to 2449906.7026
For HD 200311: year3: From 2448805.9445 to 2449164.8044
year4: From 2449253.7114 to 2449547.7836
year5: From 2449611.6534 to 2449908.7685
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Acknowledgements: Saul J. Adelman <ADELMANS@adelvx.citadel.edu>
Historical notes: There were an inversion between the b and v magnitude labels.
This was corrected on 24-Apr-1998
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(End) Patricia Bauer [CDS] 25-Jul-1996