SNIa Cosmology Analysis Results from Simulated LSST Images: From Difference Imaging to Constraints on Dark Energy

@article{Sanchez2021SNIaCA,
  title={SNIa Cosmology Analysis Results from Simulated LSST Images: From Difference Imaging to Constraints on Dark Energy},
  author={Bruno S'anchez and Richard Kessler and Daniel M. Scolnic and R. Armstrong and Rahul Biswas and J. Bogart and J. Chiang and J. Cohen-Tanugi and Dominique Fouchez and Phillipe Gris and Katrin Heitmann and Ren{\'e}e Hlo{\vz}ek and S. W. Jha and Heather M. Kelly and S. T. Liu and G. Narayan and Ben Racine and Eli S. Rykoff and M. Sullivan and C. W. Walter and W. Michael Wood-Vasey},
  journal={The Astrophysical Journal},
  year={2021},
  volume={934}
}
The Vera Rubin Observatory Legacy Survey of Space and Time (LSST) is expected to process ∼106 transient detections per night. For precision measurements of cosmological parameters and rates, it is critical to understand the detection efficiency, magnitude limits, artifact contamination levels, and biases in the selection and photometry. Here we rigorously test the LSST Difference Image Analysis (DIA) pipeline using simulated images from the Rubin Observatory LSST Dark Energy Science… 

The Pantheon+ Analysis: Cosmological Constraints

We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves of 1550 distinct Type Ia supernovae (SNe Ia) ranging in redshift from z = 0.001 to 2.26. This work