1802.09021
Instrumental effects in BRITE photometry
Pigulski, et al
Instrumental effects from BRITE satellites: first fleet of nano-satellites aimed at doing space photometry in the visual domain; host 3-cm refractor wide-field (24 deg FoV) and uncooled CCD detectors. Due to low mass (~7kg); not perfectly stabilized. (1) Correlations with position, CCD temperature and other parameters (2) Saturation and non-linearities (3) CTI (4) stray light (5) tracker grinding.
1802.09014
Reconstruction of convergence power spectrum from SNLS weak lensing data
Mitra, Pal, Pal
Estimate the lensing convergence PS from SNe magnification data using real space correlation function technique. For the analysis, utilized 296 SNe from 5yr Supernovae Legacy Survey in the WL limit Data used consists of measurements from 4 different patches, each of them covering almost 1 sq deg of the sky, merged together. Demonstrate that it is quite possible to have a good estimate of the convergence PS from this data. The primary intention is to extract meaningful informations from SNLS WL data and to demonstrate how the power spectrum for convergence can be reconstructed therefrom, without going into the nitty-gritty of errors, although dome errors analysis has been done.
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