Detection of chromatic microlensing in Q 2237 + 0305 A

@inproceedings{UOZDetectionOC,
  title={Detection of chromatic microlensing in Q 2237 + 0305 A},
  author={J. A. M U{\~N}OZ}
}
  • J. A. M UÑOZ
We present narrow band images of the gravitational lens system Q 2237+0305 made with the Nordic Optical Telescope in eight different filters covering the wavelength interval 3510-8130Å. Using PSF photometry fitting we have derived the difference in magnitude vs. wavelength between the 4 images of Q 2237+0305. At λ = 4110Å, the wavelength range covered by the Strömgren-v filter coincides with the position and width of the CIV emission line. This allows us to determine the existence of… CONTINUE READING

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