Old Q0957+561 data & software: ► Simple FORTRAN programs to apply the d2 test (accurate and robust time delay measurements)
► Photos
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● FIRST LT FRAMES/LIGHT CURVES OF THE ANDROMEDA'S PARACHUTE LT light curves from August 2017 to February 2019
● GNT-GMOS-B600 SPECTRA OF PS J0147+4630AD AND THE MAIN LENS GALAXY
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