Séminaire/Seminar Galaxies |
| « J-PAS early data release and analyzing its images with Gnuastro » |
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Mohammad Akhlagh & Tamara Civera |
| The J-PAS early data release became public in late 2024 with a coverage of +12 degrees in all 57 filters: 54 filters (each about 14nm wide), two medium-band filters on the extreme red and blue and a broad-band. Through their contiguous 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. After a review of J-PAS and its Virtual Observatory (VO) database, we will conclude this talk with known existing issues that will be fixed in the first official data release later this year. |
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jeudi 30 janvier 2025 - 11:00 Salle Planck Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |