J/A+A/661/A89 Catalogue of Geneva seven-colour photometry (Paunzen, 2022)
Catalogue of stars measured in the Geneva seven-colour photometric system.
Paunzen E.
<Astron. Astrophys. 661, A89 (2022)>
=2022A&A...661A..89P 2022A&A...661A..89P (SIMBAD/NED BibCode)
ADC_Keywords: Photometry, Geneva ; Colors ; Magnitudes ; Stars, standard ;
Surveys
Keywords: astronomical databases - catalogs - stars: general -
techniques: photometric
Abstract:
We present observations within one of the most homogeneous photometric
system available, the Geneva seven-colour system. Measurements were
employed under the leadership of the Observatoire de Geneve at six
different observatories around the world. The filters were identical
and the detectors well characterised. In addition, the reduction
process is well defined and all the data are processed in a
homogeneous way. The disadvantage of such a strategy is that the
observed astrophysical objects are prescribed and limited. The last
published version of the Geneva seven-colour photometric catalogue
dates back more than 30 years. Since then, regular updates have been
made public via the General Catalogue of Photometric Data. We present
here the newest version (released September 2021), cross-matched with
the recent Gaia data releases and the Two Micron All Sky Survey
(2MASS) in order to clearly identify the unique identifications of the
Geneva working group. This will allow, for the first time, the
photometric data to be used in a much more convenient and broader
context.
Description:
The Geneva seven-colour photometric system is successfully applied to
the study of various astrophysical objects. It measures the slope of
the Paschen continuum, the Balmer discontinuity, and blocking
absorption due to hydrogen or metallic lines. One of its greatest
strengths is its intrinsic homogeneity. The identifications for the
individual stars were cross-checked on the basis of the Gaia and 2MASS
catalogues. The high precision coordinates together with proper
motions (if available) are included, for the first time, in the
catalogue. Special caution was exercised with binaries and
high-proper-motion stars. The catalogue includes 42911 entries of
highly accurate photometry.
The contents will be updated regularly. The complete files with all
references can be downloaded and queried from
http://gcpd.physics.muni.cz/
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 329 42911 The catalogue of Geneva seven-colour photometry
--------------------------------------------------------------------------------
See also:
II/169 : Observations in the Geneva Photometric System 4. (Rufener 1988)
http://gcpd.physics.muni.cz : GCPD Home Page
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- ID Identification in the GCPD
12- 16 A5 --- Remarks [ABCDEHPQV ] Remarks on duplicity,
variability, ... (1)
18- 24 F7.3 mag Vmag ? Geneva V magnitude
26- 32 F7.3 mag U-B Geneva photometric index
34- 40 F7.3 mag V-B Geneva photometric index
42- 48 F7.3 mag B1-B Geneva photometric index
50- 56 F7.3 mag B2-B Geneva photometric index
58- 64 F7.3 mag V1-B Geneva photometric index
66- 72 F7.3 mag G-B Geneva photometric index
74- 80 F7.3 mag U-B1 Geneva photometric index
82- 88 F7.3 mag U-B2 Geneva photometric index
90- 96 F7.3 mag B1-B2 Geneva photometric index
98-104 F7.3 mag V1-G Geneva photometric index
106-112 F7.3 mag B2-G Geneva photometric index
114-120 F7.3 mag B2-V1 Geneva photometric index
122-128 F7.3 mag d d = (U-B1) - 1.430(B1-B2)
130-136 F7.3 mag Delta Delta = (U-B2) - 0.832(B2-G)
138-144 F7.3 mag g g = (B1-B2) - 1.357(V1-G)
146-152 F7.3 mag m2 m2 = (B1-B2) - 0.457(B2-V1)
154-160 F7.3 mag X X = +0.3788 + 1.3764(U-B) - 1.2162(B1-B)
- 0.8498(B2-B) - 0.1554(V1-B) + 0.8450(G-B)
162-168 F7.3 mag Y Y = -0.8288 + 0.3235(U-B) - 2.3228(B1-B)
+ 2.3363(B2-B) + 0.7495(V1-B) - 1.0865(G-B)
170-176 F7.3 mag Z Z = -0.4572 + 0.0255(U-B) - 0.1740(B1-B)
+ 0.4696(B2-B) - 1.1205(V1-B) + 0.7994(G-B)
178-181 I4 --- w_Vmag Weight of Vmag
183-189 F7.3 mmag e_Vmag Standard Deviation of Vmag
191-194 I4 --- Weight Weight of the colours
196-202 F7.3 mmag Sigma Mean standard deviation for the colours
204-233 A30 --- ID2 Gaia or 2MASS identification (if available)
238-248 F11.7 deg RAdeg Right ascension (J2000)
251-261 F11.7 deg DEdeg Declination (J2000)
263-272 F10.4 mas/yr pmRA ? Proper motion in right ascension direction
274-283 F10.4 mas/yr e_pmRA ? Standard error of pmRA
285-294 F10.4 mas/yr pmDE ? Proper motion in declination direction
296-305 F10.4 mas/yr e_pmDE ? Standard error of pmDE
307-317 F11.6 deg GLON Galactic longitude
319-329 F11.6 deg GLAT Galactic latitude
--------------------------------------------------------------------------------
Note (1): For components of multiple stars we added the suffix A, B, C...
Usually when we know that two or more components are measured together
a remark is made,
D for optically double, B for spectroscopic binaries and V for Variable
--------------------------------------------------------------------------------
Acknowledgements:
Ernst Paunzen, epaunzen(at)physics.muni.cz
(End) Patricia Vannier [CDS] 25-Apr-2022