J/A+A/544/A51 R-band photometry of the lensed quasar UM673 (Koptelova+, 2012)
Time delay between images of the lensed quasar UM673.
Koptelova E., Chen W.P., Chiueh T., Artamonov B.P, Oknyanskij V.L.,
Nuritdinov S.N., Burkhonov O., Akhunov T., Bruevich V.V., Ezhkova O.V.,
Gusev A.S., Sergeyev A.V., Ehgamberdiev Sh.A., Ibragimov M.A.
<Astron. Astrophys. 544, A51 (2012)>
=2012A&A...544A..51K 2012A&A...544A..51K
ADC_Keywords: QSOs ; Gravitational lensing ; Photometry
Keywords: gravitational lensing: strong - methods: data analysis -
quasars: individual: UM673
Abstract:
We present observational data of the double lensed quasar UM673
obtained with the 1.5-m telescope of the Maidanak Observatory and the
1.3-m SMARTS telescope at CTIO between 2006 and 2010. We combine these
data with our previously published observational data of UM673 to
measure the time delay between the UM673 images. We also analyze the
time evolution of the flux ratio between the UM673 images.
Description:
Table 2 contains relative magnitudes of images A and B of UM673 in the
R band. The fluxes of image B presented in the table are not corrected
for the lensing galaxy flux contribution (see paper for details).
Objects:
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RA (2000) DE Designation(s)
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01 45 16.5 -09 45 17 UM673 = Q0142-100
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 47 96 Maidanak-CTIO fluxes of the UM673 images in the R band
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See also:
J/ApJ/409/28 : Gravitationally Lensed Quasars (Maoz + 1993)
J/A+A/420/447 : VRI photometry of lensed quasar QSO B2237+0305 (Vakulik+, 2004)
J/A+A/455/L1 : Variability of 5 gravitationally lensed QSOs (Paraficz+, 2006)
J/ApJ/662/62 : Optical monitoring of SDSS J1004+4112 (Fohlmeister+, 2007)
J/A+A/528/A42 : VRi light curves of the lensed QSO HE 0435-1223 (Ricci+, 2011)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 F10.2 d JD Julian Date
12- 14 F3.1 arcsec Seeing Seeing condition of observations
16- 20 F5.3 mag Amag Relative magnitude of image A of UM673 in R
22- 26 F5.3 mag e_Amag Error on Amag
28- 32 F5.3 mag Bmag Relative magnitude of image B of UM673 in R
34- 38 F5.3 mag e_Bmag Error on Bmag
40- 47 A8 --- Obs Name of the Oservatory ("Maidanak" or "CTIO")
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Acknowledgements:
Ekaterina Koptelova, ekaterina(at)phys.ntu.edu.tw
References:
Koptelova et al., 2010MNRAS.401.2805K 2010MNRAS.401.2805K
Koptelova et al., 2010OAJ.....3..184K 2010OAJ.....3..184K
Koptelova et al., 2008ARep...52..270K 2008ARep...52..270K
Nakos et al., 2005A&A...441..443N 2005A&A...441..443N
(End) Patricia Vannier [CDS] 23-Jul-2012