J/A+A/416/669 UBV photometry of HD 6226 (Bozic+, 2004)
Properties and nature of Be stars.
XXII. Long-term light and spectral variations of the new bright Be star HD 6226.
Bozic H., Harmanec P., Yang S., Ziznovsky J., Percy J., Ruzdjak D.,
Sudar D., Slechta M., Skoda P., Krpata J., Buil C.
<Astron. Astrophys. 416, 669 (2004)>
=2004A&A...416..669B 2004A&A...416..669B
ADC_Keywords: Stars, emission ; Binaries, spectroscopic ; Photometry, UBV ;
Spectrophotometry
Keywords: Stars: binaries: spectroscopic - Stars: emission line, Be -
Stars: individual: HD 6226
Abstract:
Photometric and spectroscopic monitoring of the B star resulted in the
finding that this object is a new bright Be star with a clear positive
correlation between the brightness and emission-line strength. The
emission-line episodes are relatively short and seem to repeat
frequently which makes this star an ideal target for studying the
causes of the Be phenomenon.
Objects:
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RA (2000) DE Designation(s)
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01 03 53.36 +47 38 32.3 HD 6226 = BD+46 245 = HIP 4983
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 76 936 All individual UBV observations of HD 6226
with known times of observations
table4a.dat 64 35 Spectrophotometric data on Hα and HeI 6678
profiles
table4b.dat 75 35 Radial velocities of Hα, HeI 6678 and
metal lines
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See also:
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/419/607 : Long-term variations of kappa Dra. Paper 23. (Saad+, 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- 12 F12.4 d HJD Heliocentric Julian date
14- 17 F4.2 -- w Weight of the data point
20- 24 F5.3 mag Vmag Johnson V magnitude
26- 31 F6.3 mag Bmag ?=99.999 Johnson B magnitude
33- 38 F6.3 mag Umag ?=99.999 Johnson U magnitude
40- 45 F6.3 mag B-V ?=99.999 Johnson B-V colour index
47- 52 F6.3 mag U-B ?=99.999 Johnson U-B colour index
55- 59 F5.3 -- X Air mass of the observation
61- 66 F6.4 -- dX Air mass difference between var. and comp.
69- 72 I4 -- HDcomp HD number of the comparison star used
73- 76 I4 --- Obs Numerical code identifying sources of data (1)
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Note (1): Numerical code identifying sources of data by their number
used in the Ondrejov data archives - see the explanation in Table 1
Table 1: Journal of photoelectric observations.
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Station Time interval No. of Passbands Remark
No (HJD-2400000) obs.
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1 45212.6--52847.6 483 UBV
61 47868.6--49038.4 83 V all-sky
18 50660.4--52696.3 66 UBV
43 50665.0--50860.6 31 V
3 50684.5--51602.3 274 UBV
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Note: Observing stations are identified by their running numbers they
have in the Ondejov/Praha photometric archives.
Observing stations and instruments:
1: Hvar 0.65-m reflector, a photometer with EMI 6256 tube;
3: Skalnate Pleso 0.60-m reflector with a SSP5 photometer and
Hamamatsu R4457 tube;
18: Stara Lesna 0.60-m reflector and a photometer with EMI 9789Q tube;
43: AAVSO photoelectric observing program coordinated by JRP;
61: Hipparcos satellite; Hp magnitude (Perryman et al., HIP,
Cat. I/239) transformed to the standard Johnson V after
Harmanec (hpbv).
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Byte-by-byte Description of file: table4a.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian date
15- 20 F6.3 0.1nm EWHa Hα equivalent width
24- 28 F5.3 --- IcHa Hα central intensity
32- 36 F5.3 --- IvHa ? Hα violet peak intensity
40- 44 F5.3 --- IrHa ? Hα red peak intensity
48- 52 F5.3 0.1nm EWHe HeI 6678 equivalent width
56- 60 F5.3 --- IcHe HeI 6678 central intensity
64 I1 --- Obs Code of the observatory according to Table3 (1)
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Note (1):
Table 3: Journal of electronic spectrograms
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Observatory Time interval No. of Dispersion
(HJD-2400000) spectra
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1 50653.98--52875.90 12 10
2 50659.58 1 3.9--6.8
3 52658.28--52679.31 2 3.9--6.8
4 52677.26--52679.26 2 38
5 52832.45--52877.51 18 17.2
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Note: Observatories:
1: DAO CCD 4096;
2: Heidelberg, Heros;
3: Ondejov, Heros;
4: Castanet Tolosan CCD;
5: Ondrejov, coude CCD700
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Byte-by-byte Description of file: table4b.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian date
16- 20 F5.1 km/s RVHabaw ? Hα radial velocity of broad absorption
wings
24- 28 F5.1 km/s RVmetbaw ? Metal radial velocity of broad absorption
wings
32- 36 F5.1 km/s RVHac ? Hα radial velocity of central sharp
absorption cores
40- 44 F5.1 km/s RVmetc ? Metal radial velocity of absorption cores
48- 52 F5.1 km/s RVHae ? Hα radial velocity of emission wings
56- 60 F5.1 km/s RVHeIbaw ? HeI 6678 radial velocity of broad absorption
wings
66- 70 F5.1 km/s RVHeIc ? HeI 6678 radial velocity of absorption cores
75 I1 --- Obs Code of the observatory according to Table 3
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Acknowledgements:
Petr Harmanec
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 7a (88 Her) 1982A&AS...50..481D 1982A&AS...50..481D
Doazan et al., Paper 7b (88 Her) 1982A&A...115..138D 1982A&A...115..138D
Harmanec et al., Paper 8 (88 Her) 1978BAICz..29..278H 1978BAICz..29..278H
Koubsky, Paper 9 (HD 174237) 1978BAICz..29..288K 1978BAICz..29..288K
Koubsky 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
Saad et al., Paper 23 (kappa Dra) 2004A&A...419..607S 2004A&A...419..607S Cat. J/A+A/419/607
(End) Patricia Bauer [CDS] 22-Jan-2004