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J-PAS early data release and analyzing its images with Gnuastro

Mohammad Akhlaghi
Centro de Estudios de Física del Cosmos de Aragón

Abstract
The J-PAS early data release became public in November 2024 with a coverage of +12 degrees in all 56 filters: 54 filters (each about 14nm wide), and two medium-band filters on the extreme red and blue. Through their contiguos spectral-coverage of the visible wavelengths, J-PAS effectively produces a low spectral resolution IFU of the entire northern sky (8000 square degrees are planned). This unique feature of J-PAS will open a whole new discovery space in astrophysics: being able to detect emission-line objects/regions without any pre-selection, accurate photometric redshifts as well as accurate stellar population modeling of the continuum for the billions of galaxies it will catalog by the end of the mission. One such discovery within the J-PAS early data release footprint will be presented by Sepideh Eskandarlou the day before this cookie seminar. In that work, we used GNU Astronomy Utilities (Gnuastro) to analyze the images, so we will conclude this cookie seminar with a demonstration of Gnuastro's usage on J-PAS to help interested research at CAUP get their feet wet in this ocean of J-PAS data and eventually to make their own new discoveries as they dive deeper.

2024 December 10, 16:30

IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia