ADC/CDS Standard Document for Catalog:/catalogs/2/2027/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
II/27 Photoelectric Photometric Measurements, UcBV System (Nicolet 1975)
================================================================================
Catalogue of Photoelectric Photometric Measurements in the UcBV System
Nicolet B.
<A&AS, 22, 239 (1975)>
=1975A&AS...22..239N
================================================================================
ADC_Keywords: Photometry, UcBV ; Colors
Description:
All measurements in the literature on the Cape photometric system as of early
1975 have been compiled. The catalog includes measurements from 38 publications
as well as 469 unpublished measurements forwarded by Dr. A. W. J. Cousins.
Introduction:
The method and computer program described by Hauck (1973) and used by Lindemann
and Hauck (1973) was used for the ubvybeta system. The data of Cousins and Stoy
(1963) were used as the standard but no systematic differences were found. As
the standard error was sufficiently small, each publication was given the same
weight. However, Johnson et al (1966) have signaled a slight divergence
between their measurements in V and B-V and those given in the Cape system.
Account was taken of this in the calculation.
The probable error in each magnitude and color is less than 0.01 mag.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
obs.dat 80 8080 Observations
wtdmns.dat 33 7141 Weighted Means
ref.dat 80 38 References
nmsys.dat 80 245 Numbering System
crsindx.dat 29 546 Cross Index
--------------------------------------------------------------------------------
Byte-by-byte Description of file: obs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.8 --- NC *Coded Number
12 A1 --- rem *Remark
15- 19 F5.2 mag V ? V Magnitude
22- 26 F5.2 mag B-V *? B-V Color Index
29- 33 F5.2 mag U-Bc *? U-Bc Color Index
36- 39 A4 --- n *Number of Observations
76- 80 I5 --- ref *Reference Number
--------------------------------------------------------------------------------
Note on NC:
see nmsys.dat
Note on rem:
D if the star is a multiple system
V if it is a (slightly) variable star
Note on B-V:
index from Cape photometric system
Note on U-Bc:
index from Cape photometric system
Note on n:
Number of Observations in the following format:
" nn" exactly nn observations
"* nn" at least nn observations
" / " unknown number (1 is assumed for the weighted mean)
" STD" the star is a standard star for a publication
Note on ref:
Reference number:
"02nnn" where "02" means UcBV photometric system and "nnn" is
the running number in the reference file (file3, part 1)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: wtdmns.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.8 --- NC *Coded Number
12 A1 --- Rem *Remark
15- 19 F5.2 mag V ? V magnitude
22- 26 F5.2 --- B-V *? B-V Color Index
29- 33 F5.2 --- U-Bc *? U-Bc Color Index
--------------------------------------------------------------------------------
Note on NC:
see nmsys.dat
Note on Rem:
D if the star is a multiple system
V if it is a (slightly) variable star
Note on B-V:
index from Cape photometric system
Note on U-Bc:
index from Cape photometric system
--------------------------------------------------------------------------------
Byte-by-byte Description of file: ref.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- num Reference number
4- 80 A77 --- ref *References
--------------------------------------------------------------------------------
Note on ref:
Number and Reference of the papers used in obs.dat
--------------------------------------------------------------------------------
Byte-by-byte Description of file: nmsys.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 80 A80 --- num *Numbering system
--------------------------------------------------------------------------------
Note on num:
Description of the coded numbering system used in obs.dat and wtdmns.dat
Mermilliod J.Cl., CDS, RISP 5
--------------------------------------------------------------------------------
Byte-by-byte Description of file: crsindx.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 12 F11.8 --- NC *Coded Number for stars in clusters
14- 19 I6 --- HD ? HD number
21- 29 F9.5 --- DM ? Durchmusterung identification
--------------------------------------------------------------------------------
Note on NC:
see nmsys.dat
--------------------------------------------------------------------------------
References:
Blanco V.M., Demers S., Douglass G.G. and FitzGerald P.M. 1970,
Pub. U.S. Naval Obs., 2nd series. 21.
Cousins A.W.J. and Stoy R.H. 1963, Roy. Obs. Bull. no. 64.
Cousins A.W.J., Lake R. and Stoy R.H. 1966, Roy. Obs. Bull. no. 121.
Hauck B. 1973, in Fehrenbach Ch. and Westerlund B.E. (eds.), Spectral
Classification and Multicolour Photometry, p. 285, Reidel D.,
Dordrecht.
Johnson H L., Mitchell R.I., Iriarte B. and Wisniewski W.Z. 1966,
Comm. Lunar and Planet. Lab. no. 63.
Lindemann E and Hauck B. 1973, Astron. Astrophys. Suppl. 11, 119.
Mermilliod J.C. 1973, Rapport interne du CDS 5/l973.
================================================================================
(End) Julie Anne Watko [SSDOO/ADC] 21-FEB-1996