J/A+A/419/607 Long-term variations of kappa Dra (Saad+, 2004)
Properties and nature of Be stars.
XXIII. Long-term variations and physical properties of kappa Dra.
Saad S.M., Kubat J., Koubsky P., Harmanec P., Skoda P., Korcakova D.,
Krticka J., Slechta M., Bozic H., Ak H., Hadrava P., Votruba V.
<Astron. Astrophys. 419, 607 (2004)>
=2004A&A...419..607S 2004A&A...419..607S
ADC_Keywords: Stars, Be ; Spectroscopy ; Equivalent widths
Keywords: stars: Be, emission-line - stars: long-term variation -
stars: individual: κ Dra
Abstract:
A summary of results of spectroscopic monitoring of the bright Be star
kappa Dra carried out at the Ondrejov Observatory between 1990 and
2004 is presented. To investigate long-term variations of Kappa Dra,
we focused on Hα, Hβ, Hγ, Hδ, SiII 6347Å,
SiII 6371Å, HeI 6678Å, and FeII 6456Å lines. We measured
equivalent widths {W}, peak intensities of the double emission lines,
and the central intensity of the absorption reversals relative to the
adjacent continuum (IV, IR, and Ic, respectively), and also the
peak separation between violet and red peaks (Deltanup). Note that
{W} is taken with a negative sign for the emission line profile. Only
{W}, and Ic were measured, of course, for the absorption lines of
{HeI} and {SiII}. All measurements are collected together with
heliocentric Julian dates of mid-exposures (HJDs) in Tables 2, 3 and
4.
Objects:
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RA (2000) DE Designation(s)
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12 33 28.9 +69 47 18 kappa Dra = HD 109387
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 60 143 Measured parameters of Hα
table3.dat 107 46 Measured parameters of Hβ, Hγ and
Hδ
table4.dat 69 147 Measured parameters of SiII 6347, SiII 6371,
He I6678 and FeII 6456
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See also:
J/A+AS/107/403 : Kappa Dra (Juza+, 1994)
J/A+A/324/965 : UBV photometry of V360 Lac. Paper 17 (Hill+ 1997)
J/A+A/328/551 : Spectroscopic data of 4 Herculis. Paper 18 (Koubsky+ 1997)
J/A+A/387/580 : UBV photometry of V832 Cyg. Paper 21 (Harmanec+, 2002)
J/A+A/416/669 : UBV photometry of HD 6226. Paper 22 (Bozic+, 2004)
J/A+A/459/849 : Radial velocities of ups Sgr. Paper 25 (Koubsky+, 2006)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- File File ID
9- 20 F12.4 d HJD Heliocentric Julian date
24- 29 F6.2 0.1nm EWHa Equivalent width of Hα
32- 35 F4.2 --- IcHa ? Relative intensity of the line center
38- 41 F4.2 --- IVHa ? Relative intensity of the violet peak
44- 47 F4.2 --- IRHa ? Relative intensity of the red peak
50- 54 F5.1 km/s (Dnu)pHa ? Peak separation
57- 60 F4.2 --- V/RHa ? Intensity ratio of the violet to red peaks
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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- 6 A6 --- File File ID
9- 20 F12.4 d HJD Heliocentric Julian date
23- 26 F4.2 0.1nm EWHb ? Equivalent width of Hβ
29- 32 F4.2 --- IcHb ? Hβ line center relative intensity
35- 38 F4.2 --- IVHb ? Hβ violet peak relative intensity
41- 44 F4.2 --- IRHb ? Hβ red peak relative intensity
47- 50 F4.2 --- V/RHb ? Hβ violet to red peaks intensity ratio
53- 57 F5.1 km/s (Dnu)pHb ? Peak separation of Hβ
60- 63 F4.2 0.1nm EWHg ? Equivalent width of Hγ
66- 69 F4.2 --- IcHg ? Hγ line center relative intensity
72- 75 F4.2 --- IVHg ? Hγ violet peak relative intensity
78- 81 F4.2 --- IRHg ? Hγ red peak relative intensity
84- 87 F4.2 --- V/RHg ? Hγ violet to red peaks intensity ratio
90- 94 F5.1 km/s (Dnu)pHg ? Peak separation of Hγ
98-101 F4.2 0.1nm EWHd ? Equivalent width of Hδ
104-107 F4.2 --- IcHd ? Hδ line center relative intensity
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- File File ID
9- 20 F12.4 d HJD Heliocentric Julian Date
23- 27 F5.3 0.1nm EWSiII ? Equivalent Width of SiII 6347
29- 32 F4.2 --- IcSiII ? SiII 6347 line center relative intensity
35- 38 F4.2 0.1nm EWSiIIb ? Equivalent Width of SiII 6371
41- 44 F4.2 --- IcSiIIb ? SiII 6371 line center relative intensity
47- 50 F4.2 0.1nm EWHeI ? Equivalent Width of HeI 6678
53- 56 F4.2 --- IcHeI ? HeI 6678 line center relative intensity
59- 63 F5.2 0.1nm EWFeII ? Equivalent Width of FeII 6456
66- 69 F4.2 --- IcFeII ? FeII 6456 line center relative intensity
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Acknowledgements: Jiri Kubat
References:
Harmanec et al., Paper 1 (EW Lac) 1971BAICz..22...87H 1971BAICz..22...87H
Harmanec et al., Paper 2 (88 Her) 1972BAICz..23..218H 1972BAICz..23..218H
Harmanec et al., Paper 3 (4 Her) 1973A&A....22..337H 1973A&A....22..337H
Harmanec et al., Paper 4 (88 Her) 1974A&A....33..117H 1974A&A....33..117H
Harmanec et al., Paper 5 (4 Her) 1975A&A....42...47H 1975A&A....42...47H
Harmanec et al., Paper 6 (4 Her) 1976BAICz..27...47H 1976BAICz..27...47H
Doazan et al., Paper 7 (88 Her) 1982A&AS...50..481D 1982A&AS...50..481D
Harmanec et al., Paper 8 (88 Her) 1978BAICz..29..278H 1978BAICz..29..278H
Harmanec et al., Paper 9 (HD 174237) 1978BAICz..29..288K 1978BAICz..29..288K
Harmanec et al., Paper 10 (CX Dra) 1980BAICz..31...75K 1980BAICz..31...75K
Horn et al., Paper 11 (V1294 Aql) 1982BAICz..33..308H 1982BAICz..33..308H
Stefl, Paper 12 (KX And) 1985BAICz..36..313S 1985BAICz..36..313S
Koubsky et al., Paper 13 (V923 Aql) 1989BAICz..40...31K 1989BAICz..40...31K
Stefl et al., Paper 14 (KX And) 1990BAICz..41...29S 1990BAICz..41...29S
Harmanec et al., Paper 15 (LQ And) 1991BAICz..42....1H 1991BAICz..42....1H
Juza et al., Paper 16 (5 Dra) 1991BAICz..42...39J 1991BAICz..42...39J
Hill et al., Paper 17 (V360 Lac) 1997A&A...324..965H 1997A&A...324..965H, Cat. J/A+A/324/965
Koubsky et al., Paper 18 (4 Her) 1997A&A...328..551K 1997A&A...328..551K, Cat. J/A+A/328/551
Koubsky et al., Paper 19 (60 Cyg) 2000A&A...356..913K 2000A&A...356..913K
Harmanec et al., Paper 20 (gamma Cas) 2000A&A...364L..85H 2000A&A...364L..85H
Harmanec et al., Paper 21 (V832 Cyg) 2002A&A...387..580H 2002A&A...387..580H, Cat. J/A+A/387/580
Bozic et al., Paper 22 (HD 6226) 2004A&A...416..669B 2004A&A...416..669B, Cat. J/A+A/416/669
(End) Patricia Bauer [CDS] 22-Apr-2004