J/AZh/84/885 VRI observations of radio source S5 0716+71 (Koptelova+, 2007)
Gravitational lens Q2237+0305: reduction and analysis of the observational data.
Koptelova E.A., Artamonov B.P., Shimanovskaya E.V., Bruevich V.V.,
Gusev A.S., Ezhkova O.V.
<Astron. Zh. 84, 885 (2007)>
=2007AZh....84..885K 2007AZh....84..885K
=2007ARep..51...797K 2007ARep..51...797K
ADC_Keywords: Radio sources ; Photometry, VRI ; Photometry, CCD ; QSOs
Abstract:
The results of VRI photometry of the gravitationally lensed system
Q2237+0305 carried out on the 1.5-m telescope of Maidanak observatory
in 2004-2005 are presented. The distance between the components is of
the order of 1".
Objects:
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RA (2000) DE Designation(s)
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22 40 30.3 +03 21 31 Q2237+0305 = QSO B2237+030
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 65 97 V photometry
table45.dat 105 10 V-R and V-I color indices for components
A, B, C and D of Q2237+0305 derived from the
2004-2005 Maidanak observatory data
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See also:
J/A+A/420/447 : VRI photometry of lensed quasar QSO B2237+0305 (Vakulik+, 2004)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 F9.1 d JD [2453163/2453706] Julian date
11- 13 F3.1 arcsec FWHM Full-width at half maximum of the
point-source response
15- 20 F6.3 mag VmagA V magnitude component A
22- 26 F5.3 mag e_VmagA Standard deviation in VmagA
28- 33 F6.3 mag VmagB V magnitude component B
35- 39 F5.3 mag e_VmagB Standard deviation in VmagB
41- 46 F6.3 mag VmagC V magnitude component C
48- 52 F5.3 mag e_VmagC Standard deviation in VmagC
54- 59 F6.3 mag VmagD V magnitude component D
61- 65 F5.3 mag e_VmagD Standard deviation in VmagD
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Byte-by-byte Description of file: table45.dat
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Bytes Format Units Label Explanations
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1- 9 F9.1 d JD [2453171/2453662] Julian date
11- 15 F5.3 mag (V-R)A V-R colour index of component A
17- 21 F5.3 mag e_(V-R)A rms uncertainty on (V-R)A
23- 27 F5.3 mag (V-I)A V-I colour index of component A
29- 33 F5.3 mag e_(V-I)A rms uncertainty on (V-I)A
35- 39 F5.3 mag (V-R)B V-R colour index of component B
41- 45 F5.3 mag e_(V-R)B rms uncertainty on (V-R)B
47- 51 F5.3 mag (V-I)B V-I colour index of component B
53- 57 F5.3 mag e_(V-I)B rms uncertainty on (V-I)B
59- 63 F5.3 mag (V-R)C V-R colour index of component C
65- 69 F5.3 mag e_(V-R)C rms uncertainty on (V-R)C
71- 75 F5.3 mag (V-I)C V-I colour index of component C
77- 81 F5.3 mag e_(V-I)C rms uncertainty on (V-I)C
83- 87 F5.3 mag (V-R)D V-R colour index of component D
89- 93 F5.3 mag e_(V-R)D rms uncertainty on (V-R)D
95- 99 F5.3 mag (V-I)D V-I colour index of component D
101-105 F5.3 mag e_(V-I)D rms uncertainty on (V-I)D
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(End) Veta Avedisova [INASAN] 26-May-2009