J/A+A/347/164 HD 59435 Geneva photometry (Wade+, 1999)
The Ap spectroscopic binary HD 59435 revisited
Wade G., Mathys G., North P.
<Astron. Astrophys. 347, 164 (1999)>
=1999A&A...347..164W 1999A&A...347..164W (SIMBAD/NED BibCode)
ADC_Keywords: Stars, Ap ; Photometry, Geneva
Keywords: stars: chemically peculiar - stars: magnetic fields -
stars: individual: HD 59435 - stars: binaries: spectroscopic -
stars: evolution
Description:
The SB2 binary HD 59435 hosts a yellow giant and a magnetic Ap star, the
latter being the secondary (Wade et al., 1996, Cat. J/A+A/314/491)
and exhibiting spectral lines resolved into their magnetically-split
components. Additional measurements of the magnetic field modulus of
the Ap secondary are reported, as well as additional radial velocities
for both components and photometric magnitudes and colours in the
Geneva system. The magnetic field modulus varies with a period of
about 1360 days.
For a general description of the Geneva photometric system,
see e.g. GCPD/13
Objects:
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RA (2000) DE Designation(s)
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07 29 35.41 -09 15 33.8 HD 59435
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 48 9 Radial velocities of the components of HD 59435
and field modulus of the Ap component
table3.dat 57 152 Visual magnitudes and colour indices of HD 59435
in the Geneva photometric system
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See also:
J/A+A/314/491 : HD 59435 radial velocity + Geneva photometry (Wade+ 1996)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 F9.3 d HJD Heliocentric Julian Date of the observation
(HJD-2440000)
11- 15 F5.3 --- PhaseO Orbital phase (1)
17- 21 F5.2 km/s RVp Radial velocity of primary
23- 26 F4.2 km/s e_RVp rms uncertainty on RVp
28- 32 F5.2 km/s RVs Radial velocity of secondary
34- 37 F4.2 km/s e_RVs rms uncertainty on RVs
39- 43 F5.3 --- PhaseR Rotational phase (2)
45- 48 I4 gauss Field modulus
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Note (1): Orbital phases are computed according to the revised orbital ephemeris
described in the text.
Note (2): Rotational phases refer to the Ap star, and are computed according to
the rotational ephemeris described in the text.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d HJD Heliocentric Julian day
13 I1 --- Q Photometric Q weight (Rufener, 1988, Cat. II/169)
15- 19 F5.3 mag Vmag Magnitude in the visible
21 I1 --- P Photometric P weight (Rufener, 1988, Cat. II/169)
23- 27 F5.3 mag [U-B] Geneva [U-B] index
29- 33 F5.3 mag [V-B] Geneva [V-B] index
35- 39 F5.3 mag [B1-B] Geneva [B1-B] index
41- 45 F5.3 mag [B2-B] Geneva [B2-B] index
47- 51 F5.3 mag [V1-B] Geneva [V1-B] index
53- 57 F5.3 mag [G-B] Geneva [G-B] index
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Acknowledgements: Pierre North
(End) Patricia Bauer [CDS] 20-Apr-1999