J/ApJS/82/117 UBV and H-beta in Sco-Cen association (Slawson+, 1992)
A homogeneous catalog of new UBV and H-beta photometry of B and A type
stars in and around the Scorpius-Centaurus OB association
Slawson R.W., Hill R.J., Landstreet J.D.
<Astrophys. J. Suppl. Ser. 82, 117 (1992)>
=1992ApJS...82..117S 1992ApJS...82..117S (SIMBAD/NED Reference)
ADC_Keywords: Stars, early-type ; Photometry, UBV ; Photometry, H-beta
Keywords: open clusters and associations: individual (Sco-Cen association) -
stars: early-type - stars: fundamental parameters
Description:
As part of a thorough study of the luminosity function of Sco-Cen,
UBV, and Hβ photometry has been acquired for a large number of
mid B- to late A-type stars which are within or surrounding the
Scorpius-Centaurus OB association. UBV and Hβ photoelectric
measures have been obtained for all the B stars without previous
observations and for many of those with in the large field
280deg≤l≤362deg, +10deg≤b≤+40deg, and m-M≤7.5mag. Within the
upper Scopius subgroup (ScoOB2), 341deg≤l≤362deg, +10=<b=<30deg, UBV
and Hβ photometry was obtained for all B stars listed in the
MSC(HD) catalog. As well, UBV measures were obtained for all the
A-type stars within this field.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4 63 3243 Mean UBV observations
table4.tex 74 20242 Plain TeX version of table4
table5 25 744 Mean H-beta observations
table5.tex 74 1020 Plain TeX version of table5
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Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name HD, CD or CPD number
16- 21 F6.3 mag Vmag V magnitude
23- 26 F4.3 mag e_Vmag ? rms uncertainty in Vmag
28 A1 --- n_Vmag [*] Note on Vmag (1)
30- 35 F6.3 mag B-V B-V colour
38- 41 F4.3 mag e_B-V ? rms uncertainty in B-V
43- 44 I2 --- o_Vmag Number of observations contributing to B and V
46 A1 --- n_B-V [*] Note on B-V (1)
48- 53 F6.3 mag U-B ? U-B magnitude
55- 58 F4.3 mag e_U-B ? rms uncertainty in U-B
60- 61 I2 --- o_U-B Number of observations in U filter
63 A1 --- n_U-B [*] Note on U-B (1)
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Note (1): An asterisk after an uncertainty value for a V, B-V, or U-B magnitude
indicates probable variability based on a chi-squared test.
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Byte-by-byte Description of file: table5
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD Number
7- 8 A2 --- m_HD Multiplicity index on HD
11- 15 F5.3 --- Hbeta H-beta index
17- 20 F4.3 --- e_Hbeta rms uncertainty in H-beta
22- 23 I2 --- o_Hbeta Number of individual observations
25 A1 --- n_Hbeta [*] Note on Hbeta (1)
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Note (1): An asterisk after the uncertainty in the H-beta index
indicates probable variability based on a chi-squared test.
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Courtesy:
Bob Slawson, The Univ. of Western Ontario
(End) Francois Ochsenbein [CDS] 16-Feb-1995