J-PLUS: The Javalambre Photometric Local Universe Survey
A. J. Cenarro (1), M. Moles (2), D. Crist\'obal-Hornillos (1), A., Mar\'in-Franch (1), A. Ederoclite (1), J. Varela (1), C. L\'opez-Sanjuan (1),, C. Hern\'andez-Monteagudo (1), R. E. Angulo (2), H. V\'azquez Rami\'o (2), K., Viironen (1), S. Bonoli (1), A. A. Orsi (2)

TL;DR
J-PLUS is a comprehensive 12-band optical survey providing detailed photometric data for thousands of square degrees, enabling stellar and galaxy characterization, redshift estimation, and studies across various astrophysical fields.
Contribution
This paper introduces the J-PLUS survey's unique filter system and data release, offering unprecedented 2D photo-spectral information for stars and galaxies in the local universe.
Findings
Data release covers 36 sq.deg with 150,000 stars and 100,000 galaxies.
Achieves accurate photo-z estimates with Δz ~ 0.01-0.03.
Provides detailed spectral feature information for stellar and galaxy analysis.
Abstract
J-PLUS is an ongoing 12-band photometric optical survey, observing thousands of square degrees of the Northern hemisphere from the dedicated JAST/T80 telescope at the Observatorio Astrof\'isico de Javalambre. T80Cam is a 2 sq.deg field-of-view camera mounted on this 83cm-diameter telescope, and is equipped with a unique system of filters spanning the entire optical range. This filter system is a combination of broad, medium and narrow-band filters, optimally designed to extract the rest-frame spectral features (the 3700-4000\AA\ Balmer break region, H, Ca H+K, the G-band, the Mgb and Ca triplets) that are key to both characterize stellar types and to deliver a low-resolution photo-spectrum for each pixel of the sky observed. With a typical depth of AB mag per band, this filter set thus allows for an indiscriminate and accurate characterization of the stellar…
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