Artigo Acesso aberto Produção Nacional Revisado por pares

J-PLUS: The Javalambre Photometric Local Universe Survey

2018; EDP Sciences; Volume: 622; Linguagem: Inglês

10.1051/0004-6361/201833036

ISSN

1432-0746

Autores

A. J. Cenarro, M. Moles, D. Cristóbal-Hornillos, A. Marín-Franch, A. Ederoclite, J. Varela, C. López-Sanjuán, C. Hernández‐Monteagudo, Raúl E. Angulo, H. Vázquez Ramió, K. Viironen, Silvia Bonoli, Álvaro Orsi, G. Hurier, I. San Roman, N. Greisel, G. Vilella-Rojo, L. A. Díaz-García, R. Logroño-García, Siddhartha Gurung-López, Daniele Spinoso, David Izquierdo–Villalba, J. A. L. Aguerri, Carlos Allende Prieto, C. Bonatto, J. M. Carvano, Ana L. Chies-Santos, S. Daflon, Renato A. Dupke, J. Falcón‐Barroso, D. R. Gonçalves, Y. Jiménez-Teja, A. Molino, Vinicius M. Placco, E. Solano, Devin D. Whitten, J. Abril, J. L. Antón, Ridwan Opeyemi Bello, S. Bielsa de Toledo, J. Castillo-Ramírez, Sergio Chueca, T. Civera, M. C. Díaz-Martín, M. Domínguez-Martínez, J. Garzarán-Calderaro, J. Hernández-Fuertes, R. Iglesias-Marzoa, C. Íñiguez, J. M. Jiménez Ruiz, K. Kruuse, J. L. Lamadrid, N. M. Lasso-Cabrera, G. López-Alegre, Á. López-Sáinz, N. Maícas, Alberto Moreno-Signes, D. Muniesa, S. Rodríguez-Llano, F. Rueda-Teruel, S. Rueda-Teruel, I. Soriano-Laguía, V. Tilve, L. Valdivielso, A. Yanes-Díaz, J. S. Alcaniz, C. Mendes de Oliveira, L. Sodré, P. Coelho, R. Lopes de Oliveira, A. Tamm, Henrique S. Xavier, L. Raul Abramo, S. Akras, E. J. Alfaro, A. Álvarez-Candal, B. Ascaso, Michael A. Beasley, Timothy C. Beers, M. Borges Fernandes, Gustavo R. Bruzual, Maria Luísa Buzzo, J. M. Carrasco, J. Cepa, A. Cortesi, M. V. Costa-Duarte, M. De Prá, Ginevra Favole, Andrés Galarza, L. Galbany, K. Garcia, R. M. González Delgado, J. I. González‐Serrano, L. A. Gutiérrez-Soto, J. A. Hernández-Jiménez, A. Kanaan, H. Kuncarayakti, Ricardo G. Landim, J. Laur, J. Licandro, G. B. Lima Neto, J. Lyman, J. Maíz Apellániz, Jordi Miralda‐Escudé, David Morate, J. P. Nogueira-Cavalcante, Patricia Martins de Novais, Marc Oncins, I. Oteo, Roderik Overzier, C. B. Pereira, A. Rebassa–Mansergas, Ribamar R. R. Reis, F. Roig, M. Šako, N Salvador-Rusiñol, L. Sampedro, P. Sánchez–Blázquez, W. A. Santos, L. Schmidtobreick, B.B. Siffert, Eduardo Telles, J. M. Vı́lchez,

Tópico(s)

Stellar, planetary, and galactic studies

Resumo

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$\delta$, 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 $\sim 21.25$ mag per band, this filter set thus allows for an indiscriminate and accurate characterization of the stellar population in our Galaxy, it provides an unprecedented 2D photo-spectral information for all resolved galaxies in the local universe, as well as accurate photo-z estimates ($\Delta\,z\sim 0.01-0.03$) for moderately bright (up to $r\sim 20$ mag) extragalactic sources. While some narrow band filters are designed for the study of particular emission features ([OII]/$\lambda$3727, H$\alpha$/$\lambda$6563) up to $z < 0.015$, they also provide well-defined windows for the analysis of other emission lines at higher redshifts. As a result, J-PLUS has the potential to contribute to a wide range of fields in Astrophysics, both in the nearby universe (Milky Way, 2D IFU-like studies, stellar populations of nearby and moderate redshift galaxies, clusters of galaxies) and at high redshifts (ELGs at $z\approx 0.77, 2.2$ and $4.4$, QSOs, etc). With this paper, we release $\sim 36$ sq.deg of J-PLUS data, containing about $1.5\times 10^5$ stars and $10^5$ galaxies at $r<21$ mag.

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