J/A+A/323/881 Variations of HD 137509 (Mathys+ 1997)
The variations of the Bp star HD 137509
Mathys G., Lanz T.
<Astron. Astrophys. 323, 881 (1997)>
=1997A&A...323..881M 1997A&A...323..881M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, Bp ; Photometry, Geneva
Keywords: stars: chemically peculiar - stars: magnetic fields -
stars: rotation - stars: individual: HD 137509
Description:
A refined value P=(4.4916±0.0002) d is derived for the rotation
period of the Bp star HD 137509, from the simultaneous consideration
of photometric data recorded in the Geneva system and of measurements
of the mean longitudinal magnetic field and of the crossover. The
photometric data are given in Table 1.
For a 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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15 31 27.0 -71 03 43 HD 137509
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 68 56 Visual magnitudes and colour indices of
HD 137509 in the Geneva photometric system
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Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 11 F11.3 d HJD Heliocentric Julian Date of observation
12- 13 I2 --- Q Photometric weight Q (Rufener 1988, Cat. II/169)
14- 19 F6.3 mag [V] Geneva [V] magnitude
20- 21 I2 --- P Photometric weight P (Rufener 1988, Cat. II/169)
22- 27 F6.3 mag [U-B] Geneva [U-B] index
28- 33 F6.3 mag [V-B] Geneva [V-B] index
34- 39 F6.3 mag [B1-B] Geneva [B1-B] index
40- 45 F6.3 mag [B2-B] Geneva [B2-B] index
46- 51 F6.3 mag [V1-B] Geneva [V1-B] index
52- 57 F6.3 mag [G-B] Geneva [G-B] index
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Acknowledgements: Gautier Mathys
References:
Rufener F., 1988, Catalogue of Stars Measured in the Geneva Observatory
Photometric System (4th ed.). Geneva Observatory, Sauverny, Switzerland
Cat. II/169
(End) G. Mathys [ESO, Chile], Patricia Bauer [CDS] 24-Jan-1997