J/A+AS/142/425 BVRI photometry of 6 galaxies (Drozdovsky+, 2000)
Photometric distances to six bright resolved galaxies.
Drozdovsky I.O., Karachentsev I.D.
<Astron. Astrophys. Suppl. Ser. 142, 425 (2000)>
=2000A&AS..142..425D 2000A&AS..142..425D
ADC_Keywords: Galaxies, nearby ; Photometry, UBVRI ; Photometry, CCD
Keywords: galaxies: distances - galaxies: general
Abstract:
We present photometry of the brightest stars in six nearby spiral and
irregular galaxies with corrected radial velocities from 340 to
460km/s. Three of them are resolved into stars for the first time.
Based on luminosity of the brightest blue stars we estimate the
following distances to the galaxies: 5.0Mpc for NGC 784, 9.2Mpc for
NGC 2683, 8.9Mpc for NGC 2903, 4.1Mpc for NGC 5204, 6.8Mpc for NGC
5474, and 8.7Mpc for NGC 5585.
Objects:
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RA (2000) DE Designation(s)
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02 01 16.9 +28 50 25 NGC 784
08 52 41.4 +33 25 27 NGC 2683
09 32 09.7 +21 30 07 NGC 2903
13 29 36.5 +58 24 59 NGC 5204
14 05 01.3 +53 39 44 NGC 5474
14 19 48.0 +56 43 42 NGC 5585
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table31.dat 31 84 Stellar photometry of NGC 784
table32.dat 38 327 Stellar photometry of NGC 2683
table33.dat 38 273 Stellar photometry of NGC 2903
table34.dat 37 163 Stellar photometry of NGC 5204
table35.dat 38 298 Stellar photometry of NGC 5474
table36.dat 37 138 Stellar photometry of NGC 5585
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See also:
J/A+AS/124/559 : VI photometry of dwarf galaxies (Karanchentsev+ 1997)
J/A+AS/128/459 : BV photometry of irregular galaxies (Makarova+ 1998)
J/A+AS/131/1 : BVI photometry of 5 CVn cloud galaxies (Karachentsev+ 1998)
J/A+AS/133/181 : BVI imaging of 20 irregular galaxies (Makarova+ 1998)
J/A+AS/142/347 : BVRI photometry of NGC 6789 (Drozdovsky+, 2000)
Byte-by-byte Description of file: table3[1235].dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ident Running number
5- 8 I4 pix Xpos X coordinate (G1)
10- 13 I4 pix Ypos Y coordinate (G1)
16- 20 F5.2 mag Vmag V magnitude
22- 26 F5.2 mag V-I V-I colour index
28- 31 F4.1 --- Sharp Stellar sharpness (G2)
33- 36 F4.2 mag e_Vmag ? Photometric error of the V magnitude
38 A1 --- Field Field location (1)
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Note (1): Field location:
For NGC 2683:
1: Southern part of NGC 2683
2: Northern part of NGC 2683. See figures 3-4 on the Paper.
For NGC 2903:
0: Southern part of NGC 2903
1: Northern part of NGC 2903. See figures 6-7 on the Paper.
For NGC 5474:
0: Southern part of NGC 5474
1: Northern part of NGC 5474. See figures 11-12 on the Paper.
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Byte-by-byte Description of file: table34.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Ident Running number
5- 8 I4 pix Xpos X coordinate (G1)
10- 13 I4 pix Ypos Y coordinate (G1)
16- 20 F5.2 mag Vmag V magnitude
22- 26 F5.2 mag B-V B-V colour index
28- 32 F5.2 mag V-R V-R colour index
34- 37 F4.1 --- Sharp Stellar sharpness (G2)
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Byte-by-byte Description of file: table36.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Ident Running number
5- 8 I4 pix Xpos X coordinate (G1)
10- 13 I4 pix Ypos Y coordinate (G1)
16- 20 F5.2 mag Vmag V magnitude
22- 26 F5.2 mag V-I V-I colour index
28- 32 F5.2 mag V-R V-R colour index
34- 37 F4.1 --- Sharp Stellar sharpness (G2)
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Global notes:
Note (G1):
1 pix = 0.176 arcsec for NGC 784, NGC 2683, NGC 2903 and NGC 5204
1 pix = 0.137 arcsec for NGC 5474, NGC 5585
North is to the top, East is to the left. The upper right corner
corresponds to X=0, Y=0 of the frame coordinates given in the
photometry tables, i.e. X increases to the East and Y to the South.
Note (G2):
Sharp is a measure of the difference between the observed width of
the object and the width of the PSF model.
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Acknowledgements: Igor Drozdovsky
References:
Stetson P.B., 1994PASP..106..250S 1994PASP..106..250S
(End) Patricia Bauer [CDS] 23-Nov-2000