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Old Q0957+561 data & software: 

► Optical Monitoring

► HST-STIS Spectra

► Simple FORTRAN programs to apply the d² test (accurate and robust time delay measurements)

Postgraduate Course on GL

ANGLES SCHOOL POSTER-PDF

Workshop 2004

WORKSHOP POSTER-PDF

   ► Photos

   ► Proceedings

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TELESCOPES

BINOCULARS

●  FIRST LIGHT CURVES   (2008) 

Time delays in the gravitationally lensed quasar H1413+117 (Cloverleaf)  (ApJ)

● Long-slit spectra (Gran Telescopio CANARIAS - GTC) of two galaxies in the southwest of the Cloverleaf

Spectroscopy of lensing galaxies in the GTC era (RevMexAA) 

   New LT light curves in 2013–2016

   New database for a sample of optically bright lensed quasars in the northern hemisphere (A&A)

● Datasets:

– Table 15: LT light curves in the r band [33 epochs in 2006 and 2013-2016]

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Columns
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Col. 1: MJD-50000 (Modified Julian Date - 50000)
Col. 2: mA (Magnitude of QSO B1413+117A)
Col. 3: emA (Error in magnitude of QSO B1413+117A)
Col. 4: mB (Magnitude of QSO B1413+117B)
Col. 5: emB (Error in magnitude of QSO B1413+117B)  

Col. 6: mC (Magnitude of QSO B1413+117C)
Col. 7: emC (Error in magnitude of QSO B1413+117C)
Col. 8: mD (Magnitude of QSO B1413+117D)
Col. 9: emD (Error in magnitude of QSO B1413+117D)
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