Image Sensors for Precision Astronomy (ISPA 2024)

Session

Software & Algorithms

13 Mar 2024, 08:55

48/1-112C/D - Redwood C/D (SLAC)

10. Channel Filtering to Reduce 1/f Noise Structure in SPHEREx Data

Chi Nguyen (California Institute of Technology)

13/03/2024, 08:55

Software/Algorithms for Precision Astronomy

Oral presentation (20 minute)

The SPHEREx satellite will survey the full sky between 0.75 - 5.0 micron in over 100 wavelengths to study cosmic inflation, galaxy formation, and bionic ice distribution in the Milky Way. The focal plane assemblies consist of six HAWAII-2RG (H2RG) detectors equipped with linear variable filters (LVF) to vary the spectral response along one spatial direction with resolving power R = 35 to 130....

7. Mitigation of the Brighter-Fatter Effect in the LSST Camera

Alexander Broughton (University of California, Irvine)

13/03/2024, 09:20

Software/Algorithms for Precision Astronomy

Oral presentation (20 minute)

Thick, fully depleted charge-coupled devices (CCDs) are known to exhibit non-linear behavior at high signal levels due to the dynamic behavior of charges collecting in the potential wells of pixels, called the brighter-fatter effect (BFE). This particularly impacts bright calibration stars, which appear larger than their intrinsic shape, creating a flux-dependent point-spread function (PSF)...