APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Marcos Lopez-Caniego (ESA)
Title: The Planck Legacy Archive
Date: Wed, May 23, 2018, 15:30 - 16:30
Place: Seminar Room A
Abstract: The Planck Legacy Archive (PLA) at ESAC hosts and serves the products from the European Space Agency mission to study the Cosmic Microwave Background (CMB). Two major releases of Planck products took place in 2013 and 2015, and the final release is expected to take place in mid-2018. The PLA web interface (https://pla.esac.esa.int) intuitively directs the users to a wide variety of Planck products, e.g., time ordered data, CMB maps, frequency and astrophysical components maps (Dust, Synchrotron, Free-Free, CO, CIB, etc.), source catalogues and other products needed for cosmological studies (angular power spectra, likelihood, lensing maps, simulations, etc.). Advance Search panels to query the PLA database, embedded links to the Planck Explanatory Supplement, synchronous and asynchronous data download options, and specialized Helpdesk support are also available.

In a recent release of the PLA a number of "Added-value tools" have been integrated to facilitate the processing of Planck products, alone or in combination with external datasets. These tools are mainly designed to help users who are not familiar with some of the particularities of CMB data, but should also be of interest to CMB users. The new tools can be categorized into four distinct groups: map operations on restricted map-sets, including component subtraction, unit conversion, colour correction, bandpass transformation, and masking of map-cutouts or full-sky maps; a limited version of component separation, map-making using two different types of time-ordered data; effective beam averaging; and noise map cutout. As a complement to the PLA, some Planck catalogues and frequency maps in temperature and polarization can be explored together with other astronomical datasets in ESASky (http://sky.esa.int), a web interface developed at ESAC to visualize data not only from ESA missions but also from NASA, JAXA, and others.