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J/A+AS/134/53 uvby photometry of 4 CP stars (Adelman 1999)
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uvby Photometry of the chemically peculiar stars.
HD 15980, HR 1094, 33 Gem, and HD 115708
Adelman S.J.
<Astron. Astrophys. Suppl. Ser. 134, 53 (1999)>
=1999A&AS..134...53A (SIMBAD/NED BibCode)
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ADC_Keywords: Photometry, uvby ; Stars, variable
Keywords: stars: individual: HD 15980, HR 1094, 33 Gem, HD 115708 -
stars: chemically peculiar
Abstract:
Differential Stroemgren uvby photometry obtained with the Four College
Automated Photoelectric Telescope shows that the hot HgMn star 33 Gem
is photometrically constant. The Si star HD 15980 is found to be a
variable whose period is significantly greater than 2 years. The
unusual magnetic chemically peculiar Co star HR 1094 is discovered to
be a low amplitude photometric variable with the magnetic field period
of Hill & Blake (1996MNRAS.278..183H), 2.9761 days. The ephemeris for
the magnetic chemically peculiar star HD 115708 of Wade et al.
(1996A&A...307..500W) is confirmed with the error in its period of
5.07622 days being greatly reduced. The u, v, b, and y light curves
for both HR 1094 and HD 115708 exhibit differences which indicate
complex elemental photospheric abundance distributions.
Objects:
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RA (2000) DE Designation(s)
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02 35 13.9 +40 35 49 HD 15980
03 38 19.5 +56 56 00 HR 1094 = HD 22316
06 49 49.8 +16 12 11 33 Gem = HD 49606
13 18 37.1 +26 21 56 HD 115708
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 68 95 Photometry of HD 15980
table4a.dat 68 86 Photometry of HR 1094 (c=HD 23383, ck=HD 23594)
table4b.dat 68 12 Photometry of HR 1094 (c=HD 21447, ck=HD 20536)
table5a.dat 68 97 Photometry of 33 Gem (c=HD 48907, ck=HD 47863)
table5d.dat 68 42 Photometry of 33 Gem (c=HD 47863, ck=HD 49059)
table6.dat 68 114 Photometry of HD 115708
tablea.dat 122 17 Yearly means and standard deviations
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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 : HD 11187, HD 14940, HD 15144, 20 Eri, HR 8933 (Adelman+ 1995)
J/A+AS/122/249 : HD 32633, 25 Sex, HR 7224 & HD 200311 (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 (Adelman 1997)
J/A+AS/128/245 : AR Aur, 3 Hya, 49 Cnc & BX Boo (Adelman 1997)
J/A+AS/133/197 : 33 Tau, HD 50169 and HR 7786 (Adelman+ 1998)
J/A+AS/136/379 : 45 Leo, HR 4330, 49 Her and HR 6718 (Adelman+ 1999)
Byte-by-byte Description of file: table3.dat, table4a.dat, table5a.dat
Byte-by-byte Description of file: table4b.dat, table5d.dat table6.dat
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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 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
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Byte-by-byte Description of file: tablea.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Star Star name
10 A1 --- n_Star [ab] a for table4a.dat and table5a.dat data
b for table4b.dat and table5b.dat data
12- 18 A7 --- Per Period
20- 25 F6.3 mag u(v-c) variable-comparison (v-c) u magnitude
27- 31 F5.3 mag e_u(v-c) rms uncertainty on u(v-c)
33- 38 F6.3 mag u(ch-c) check-comparison (ch-c) u magnitude
40- 44 F5.3 mag e_u(ch-c) rms uncertainty on u(ch-c)
46- 51 F6.3 mag v(v-c) variable-comparison (v-c) v magnitude
53- 57 F5.3 mag e_v(v-c) rms uncertainty on v(v-c)
59- 64 F6.3 mag v(ch-c) check-comparison (ch-c) v magnitude
66- 70 F5.3 mag e_v(ch-c) rms uncertainty on v(ch-c)
72- 77 F6.3 mag b(v-c) variable-comparison (v-c) b magnitude
79- 83 F5.3 mag e_b(v-c) rms uncertainty on b(v-c)
85- 90 F6.3 mag b(ch-c) check-comparison (ch-c) b magnitude
92- 96 F5.3 mag e_b(ch-c) rms uncertainty on b(ch-c)
98-103 F6.3 mag y(v-c) variable-comparison (v-c) y magnitude
105-109 F5.3 mag e_y(v-c) rms uncertainty on y(v-c)
111-116 F6.3 mag y(ch-c) check-comparison (ch-c) y magnitude
118-122 F5.3 mag e_y(ch-c) rms uncertainty on y(ch-c)
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Acknowledgements: Saul J. Adelman <ADELMANS@adelvx.citadel.edu>
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(End) Patricia Bauer [CDS] 15-Jul-1998