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PSTN-001

On the Choice of LSST Flux Units

  • Željko Ivezić
  • the LSST Project Science Team

Abstract

A linear measure of flux is preferred for LSST catalogs. This document provides technical details about this preference in support of the LSST Project Science Team’s decision to adopt nano-jansky (1 nJy =10−35  Wm−2Hz−1) as the standard LSST flux unit. Difficulties associated with homogenizing broad-band flux measurements to a uniform system are also discussed in some detail.

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