J/A+A/430/471 UBV(RI)c photometry of Stock 16 (Vazquez+, 2005)
Revisiting the area of the open cluster Stock 16.
Vazquez R.A., Baume G.L., Feinstein C., Nunez J.A., Vergne M.M.
<Astron. Astrophys., 430, 471-480 (2005)>
=2005A&A...430..471V 2005A&A...430..471V
ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Photometry, Cousins
Keywords: Galaxy: open clusters and associations: individual: WR 50 -
stars: luminosity function, mass function -
Galaxy: open clusters and associations: individual: WR 51 -
stars: imaging
Abstract:
Deep CCD UBV(RI)c photometry has been carried out in the area of the
open cluster Stock 16. The different photometric diagrams indicate the
presence of three superimposed stellar groups, all composed of early
type stars.
Description:
CCD UBV(RI)c imaging photometry was carried out in the field of Stock
16 along two observational runs at the University of Toronto Southern
Observatory, Las Campanas, Chile, using the Hellen Sawyer Hogg 60-cm
telescope: on the nights of 1994 April 13, 14 and 16, we obtained
UBVRI photometry for four frames with the nitrogen-cooled detector PM
METHACROME UV coated (0.45"/pix) covering 4' on a side; three more
frames were exposed on the nights of 1996 February 25 and 26 in the
UBV(I)c bands (this time, the detector was glycol-refrigerated).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 181 1513 Final photometry for 1513 stars
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See also:
J/A+A/409/933 : UBVRI polarization in Stock 16 (Feinstein+, 2003)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 ---- VBF Star number, Cl* Stock 16 VBF NNNN in Simbad
8- 14 F7.2 pix Xpos Star's x coordinate
16- 22 F7.2 pix Ypos Star's y coordinate
25- 34 F10.7 h RAhr Right ascension J2000 (decimal hours)
39- 49 F11.7 deg DEdeg Declination J2000 (decimal degrees)
55- 59 F5.2 mag Vmag Visual magnitude
63- 66 F4.2 mag e_Vmag Visual magnitude error (1)
70- 74 F5.2 mag B-V B-V colour index
79- 82 F4.2 mag e_B-V B-V error (1)
86- 90 F5.2 mag U-B ? U-B colour index
95- 98 F4.2 mag e_U-B ? U-B error (1)
102-106 F5.2 mag V-Rc ? V-Rc colour index
111-114 F4.2 mag e_V-Rc ? V-Rc error (1)
118-122 F5.2 mag V-Ic ? V-Ic colour index
127-130 F4.2 mag e_V-Ic ? V-Ic error (1)
135-137 A3 ---- DGT Turner designation (Turner, 1985ApJ...292..148T 1985ApJ...292..148T,
Cl* Stock 16 DGT NN in Simbad
141-152 A12 ---- SpType Spectral type from Turner, 1985ApJ...292..148T 1985ApJ...292..148T,
except when Note = 1
156-159 A4 ---- Memb Membership assignation (2)
165-175 A11 ---- Other Cross correlation with the CPD (I/108),
HD (III/135) and LSS (III/43) catalogues
181 I1 ---- Note [1]? 1: Spectral classification from
van der Hucht, 2001, Cat. III/215
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Note (1): Note on rms uncertainties:
e_Vmag, e_B-V, e_U-B, e_V-R and e_V-I were obtained by quadratically
adding transformation and internal errors to the DAOPHOT ones.
See the article.
Note (2): Membership assignations are abbreviated as follows:
m = member
pms = probable pre-main sequence star; the corrected (B-V)0 was
obtained using the mean E(B-V)
pms? = probable member below the ZAMS or probable pre-main sequence star
pnm = probable non-member
A = star in Group A
B = star in Group B
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Acknowledgements: Ruben Vazquez,
History:
* 21-Feb-2005: Original version
* 27-May-2005: star#1 in table2 is HD115455 (originally HD115445)
* 19-Jul-2005: units of RA are hours (originally degrees)
(End) Patricia Vannier [CDS] 21-Feb-2005