J/A+A/458/113 BVRIc photometry towards inner Galactic Bulge (Santiago+, 2006)
Multiband photometry towards the inner Galactic Bulge:
extinction, atmospheric parameters and metallicities.
Santiago B.X., Javiel S.C., Porto de Mello G.F.
<Astron. Astrophys. 458, 113 (2006)>
=2006A&A...458..113S 2006A&A...458..113S
ADC_Keywords: Photometry, UBVRI ; Milky Way ; Extinction
Keywords: Galaxy: abundances - Galaxy: Bulge - Galaxy: structure -
Galaxy: stellar content - Galaxy: center - dust, extinction
Abstract:
We have obtained BVRI photometry for 21 stellar fields located in
directions towards the central 3.5° of the Galaxy. Each field
is 10x10 arcmin in size, and a total of ∼2x105 stars were measured.
Description:
4 files containing photometric data on 4 directions located within the
central 3.5° of the Galaxy, where extinction is lower than usual.
Equatorial coordinates (J2000.0) and optical BVRI magnitudes obtained
at Pico dos Dias, Laboratorio Nacional de Astrofisica, Brasil, are
combined with near infra-red data from the 2 Micron All Sky Survey,
providing a long spectral baseline for over 100.000 stars in these
low-extinction windows. The file names indicate the galactic longitude
and latitude of each region.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
w02-22.dat 83 6094 l= 0.2, b=-2.2. Positions, magnitudes and errors
w08-33.dat 83 44696 l= 0.8, b=-3.3. Positions, magnitudes and errors
w15-255.dat 83 48766 l= 1.5, b=-2.55. Positions, magnitudes and errors
w3595-30.dat 83 5603 l=359.5, b=-3.0. Positions, magnitudes and errors
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See also:
II/213 : OGLE Galactic Bulge periodic variables (Udalski+ 1996)
J/A+AS/122/79 : Galactic Bulge Region OH 1612MHz survey. I. (Sevenster+ 1997)
J/AJ/110/2788 : JHK photometry for Galactic bulge stars (Tiede+ 1995)
Byte-by-byte Description of file: w02-22.dat w08-33.dat w15-255.dat w3595-30.dat
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Bytes Format Units Label Explanations
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1- 10 F10.6 deg RAdeg [-1/360] Right ascension,
in decimal degrees (J2000)
12- 21 F10.6 deg DEdeg Declination, in decimal degrees(J2000)
23- 27 F5.2 mag Bmag Johnson B magnitude
29- 32 F4.2 mag e_Bmag rms uncertainty on Bmag
34- 38 F5.2 mag Vmag Johnson V magnitude
40- 43 F4.2 mag e_Vmag rms uncertainty on Vmag
45- 49 F5.2 mag Rmag Johnson R magnitude
51- 54 F4.2 mag e_Rmag rms uncertainty on Rmag
56- 60 F5.2 mag Icmag Cousins I magnitude
62- 65 F4.2 mag e_Icmag rms uncertainty on Icmag
67- 71 F5.2 mag Jmag ?=99.99 2MASS J magnitude
73- 77 F5.2 mag Hmag ?=99.99 2MASS H magnitude
79- 83 F5.2 mag Kmag ?=99.99 2MASS K magnitude
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Acknowledgements: Basilio Santiago, santiago(at)if.ufrgs.br
(End) Basilio Santiago [UFRGS, Brazil], Patricia Vannier [CDS] 16-Jun-2006