Planck Added Value Interfaces

摘要

The Planck spacecraft was a cosmology mission operated by ESA from 2009 to 2013. Planck was a space observatory detecting photon intensity and polarisation that conducted surveys with the goal being to observe anisotropies in the cosmic microwave background. While the Planck operational mission has ended, the process of performing science on the data has already produced some excellent results and scientists are still find extreme utility in the data provided by the PLA. The Planck Legacy Archive (PLA) hosted at ESAC is the data archiving system, containing all public products currently available from the mission. As Planck data audience became wider, the need arose for a Planck Added Value Interfaces (PLAAVI) system to facilitate the further use of the PLA contents. The main objective of PLAAVI was to develop a system, and make it available to the users as an extension to the existing PLA. The intention of PLAAVI is to allow users to apply various post-processing to PLA data before downloading them. The provided functionality also allows users to reprocess the science data in a manner different from what is done by the Planck data processing centers and thereby generate their own products. In the scope of the PLAAVI project, awarded by ESA in 2015 to Planetek Hellas (prime), Expert Analytics-XAL (subcontractor) and University of Oslo in an advisory role, the following added value interfaces have been developed: ? Synchronous operations on map cut-outs: o Component subtraction, unit conversion, color correction, masking, bandpass leakage correction. ? Asynchronous operations, submitted in a queue with execution and delayed delivery of results: o Full map operations, with component subtraction, unit and color correction, masking, bandpass leakage correction. o Map making: including ring based map making and baseline-removed pixel averaging map making. o Component separation: ILC and Parametric Model Maximum Likelihood component separation. o Graphical User Interface