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J/A+AS/125/75 UBV photometry of Be stars (Pavlovski+ 1997)
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UBV photometry of Be stars at Hvar: 1972-1990
Pavlovski K., Harmanec P., Bozic H., Koubsky P., Hadrava P., Kriz S.,
Ruzic Z., Stefl S.
<Astron. Astrophys. Suppl. Ser. 125, 75 (1997)>
=1997A&AS..125...75P (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, Be ; Photometry, UBV
Keywords: stars: Be - stars: individual: omicron Cas, QR Vul - stars: variable
Abstract:
A summary of results of the systematic UBV photoelectric monitoring of
bright northern Be stars carried out at the Hvar Observatory between
1972 and 1990 is presented. Altogether, 76 Be stars of all luminosity
classes were observed and 13848 UBV measurements secured.
Simultaneously, 9648 UBV measurements of 48 check stars (most of them
of early spectral types) were obtained. A careful transformation of
all observations into the standard Johnson system allowed detection
and monitoring of even very mild long-term light and colour variations
of these objects. Almost all early-type Be stars in the sample turned
out to be variable. For several stars phase-locked light variations
related to their binary nature were established. Sudden brightenings,
on a time scale of a few days, were detected for o Cas and QR Vul.
Objects:
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RA (2000) DE Designation(s)
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00 44 43.4 +48 17 04 omicron Cas = HD 4180
20 15 15.8 +25 35 31 QR Vul = HD 192685
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 49 41 List of the comparison stars
table3 77 48 List of the check stars
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD (Cat. <III/135>) number
9- 17 A9 --- Name Other name of star
20- 25 F6.3 mag Vmag Johnson V magnitude
28- 33 F6.3 mag B-V Johnson B-V index
36- 41 F6.3 mag U-B Johnson U-B index
44- 49 A6 --- SpType Spectral type
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD (Cat. <III/135>) number
9- 17 A9 --- Name Other name of star
20- 21 I2 yr Season Number of seasons
23- 26 I4 --- o_Vmag Number of UBV measurements
28- 33 F6.3 mag Vmag Johnson V magnitude
35- 40 F6.3 mag e_Vmag Standard deviation in Vmag
42- 47 F6.3 mag Bmag Johnson B magnitude
49- 54 F6.3 mag e_Bmag Standard deviation in Bmag
56- 61 F6.3 mag Umag Johnson U magnitude
63- 68 F6.3 mag e_Umag Standard deviation in Umag
71- 77 A7 --- SpType Spectral type
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Acknowledgements: Kresimir Pavlovski <kresimir@geof.hr>
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(End) Patricia Bauer [CDS] 09-Sep-1997