J/A+A/553/A121 2 lensed quasars light curves (Eulaers+, 2013)
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses.
XII. Time delays of the doubly lensed quasars SDSS J1206+4332 and HS 2209+1914.
Eulaers E., Tewes M., Magain P., Courbin F., Asfandiyarov I.,
Ehgamberdiev Sh., Rathna Kumar S., Stalin C.S., Prabhu T.P., Meylan G.,
Van Winckel H.
<Astron. Astrophys. 553, A121 (2013)>
=2013A&A...553A.121E 2013A&A...553A.121E
ADC_Keywords: QSOs ; Gravitational lensing ; Photometry
Keywords: gravitational lensing: strong - cosmological parameters -
quasars: individual: SDSS J1206+4332 -
quasars: individual: HS 2209+1914
Abstract:
Within the framework of the COSMOGRAIL collaboration we present 7- and
8.5-year-long light curves and time-delay estimates for two
gravitationally lensed quasars: SDSS J1206+4332 and HS 2209+1914.
We monitored these doubly lensed quasars in the R-band using four
telescopes: the Mercator, Maidanak, Himalayan Chandra, and Euler
Telescopes, together spanning a period of 7 to 8.5 observing seasons
from mid-2004 to mid-2011. The photometry of the quasar images was
obtained through simultaneous deconvolution of these data. The time
delays were determined from these resulting light curves using four
very different techniques: a dispersion method, a spline fit, a
regression difference technique, and a numerical model fit. This
minimizes the bias that might be introduced by the use of a single
method.
Objects:
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RA (2000) DE Designation(s)
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12 06 29.65 +43 32 17.5 SDSS J1206+4332 = SDSS J120629.65+433217.6
22 11 30.33 +19 29 13.1 HS 2209+1914 = HS 2209+1914
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
hs2209.dat 60 439 Photometry of HS 2209+1914 as in Figure 6
j1206.dat 60 382 Photometry of SDSS J1206+4332 as in Figure 3
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See also:
J/A+A/488/481 : Time delays and H0 from WFI J2033-4723 (Vuissoz+, 2008)
J/A+A/536/A53 : R-band light curves of HE 0435-1223 (Courbin+, 2011)
J/A+A/420/447 : Lensed quasar QSO B2237+0305 VRI photometry (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)
J/A+A/544/A51 : Lensed quasar UM673 R-band photometry (Koptelova+, 2012)
J/A+A/551/A104 : Lensed QSO UM673/Q0142-100 VRi light curves (Ricci+, 2013)
Byte-by-byte Description of file: hs2209.dat j1206.dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d MJD Modified Julian date
13- 21 F9.5 mag RAmag Relative R magnitude of quasar component A
23- 29 F7.5 mag e_RAmag rms uncertainty on RAmag
31- 39 F9.5 mag RBmag Relative R magnitude of quasar component B
41- 47 F7.5 mag e_RBmag rms uncertainty on RBmag
49- 60 A12 --- Tel Telescope used (1)
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Note (1): Telescopes as follows:
Mercator = Mercator 1.2m La Palma, Canary Islands, Spain
HS 2209+1914: 08/2004-12/2008; SDSS J1206+4332: 03/2005-12/2008
MaidanakSITE = AZT-22 1.5m, Maidanak, Uzbekistan
HS 2209+1914: 05-08/2008; SDSS J1206+4332: 01/2005-07/2008
MaidanakSI = AZT-22 1.5m, Maidanak, Uzbekistan
HS 2209+1914: May-Oct2007 + 09-10/2008 ; SDSS J1206+4332: 2007
HTC = HCT 2m, Hanle, India
HS 2209+1914: 09/2007-08/2012; SDSS J1206+4332: 05/2007-07/2011
EulerC2 = Eler 2m Hanle, India
HS 2209+1914: 05/2004-10/2006
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Acknowledgements:
Eva Eulaers, E.Eulaers(at)ulg.ac.be
References:
Eigenbrod et al., Paper I 2005A&A...436...25E 2005A&A...436...25E
Eigenbrod et al., Paper II 2006A&A...451..747E 2006A&A...451..747E
Eigenbrod et al., Paper III 2006A&A...451..759E 2006A&A...451..759E
Saha et al., Paper IV 2006A&A...450..461S 2006A&A...450..461S
Vuissoz et al., Paper V 2007A&A...464..845V 2007A&A...464..845V
Eigenbrod et al., Paper VI 2007A&A...465...51E 2007A&A...465...51E
Vuissoz et al., Paper VII 2008A&A...488..481V 2008A&A...488..481V, Cat. J/A+A/488/481
Chantry et al., Paper VIII 2010A&A...522A..95C 2010A&A...522A..95C
Courbin et al., Paper IX 2011A&A...536A..53C 2011A&A...536A..53C, Cat. J/A+A/536/A53
Sluse et al., Paper X 2012A&A...538A..99S 2012A&A...538A..99S
(End) Patricia Vannier [CDS] 24-Apr-2013