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### Electronic data

• 1912.10145v1

Rights statement: The final, definitive version of this article has been published in the Journal, Astronomy and Astrophysics, 633, 2020, © EDP Sciences.

Accepted author manuscript, 2.06 MB, PDF document

## J-PLUS: Tools to identify compact planetary nebulae in the Javalambre and southern photometric local universe surveys

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• L. A. Gutiérrez-Soto
• D. R. Gonçalves
• S. Akras
• A. Cortesi
• C. López-Sanjuan
• M. A. Guerrero
• S. Daflon
• M. Borges Fernandes
• C. Mendes de Oliveira
• A. Ederoclite
• L. Sodré Jr
• C. B. Pereira
• A. Kanaan
• A. Werle
• H. Vázquez Ramió
• J. S. Alcaniz
• R. E. Angulo
• A. J. Cenarro
• D. Cristóbal-Hornillos
• R. A. Dupke
• C. Hernández-Monteagudo
• A. Marín-Franch
• M. Moles
• J. Varela
• T. Ribeiro
• W. Schoenell
• A. Alvarez-Candal
• L. Galbany
• F. M. Jiménez-Esteban
• R. Logroño-García
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Article number A123 21/01/2020 Astronomy and Astrophysics 633 12 Published English

### Abstract

From the approximately $\sim$3,500 planetary nebulae (PNe) discovered in our Galaxy, only 14 are known to be members of the Galactic halo. Nevertheless, a systematic search for halo PNe has never been performed. In this study, we present new photometric diagnostic tools to identify compact PNe in the Galactic halo by making use of the novel 12-filter system projects, J-PLUS (Javalambre Photometric Local Universe Survey) and S-PLUS (Southern-Photometric Local Universe Survey). We reconstructed the IPHAS (Isaac Newton Telescope (INT) Photometric H${\alpha}$ Survey of the Northern Galactic Plane) diagnostic diagram and propose four new ones using i) the J-PLUS and S-PLUS synthetic photometry for a grid of photo-ionisation models of halo PNe, ii) several observed halo PNe, as well as iii) a number of other emission-line objects that resemble PNe. All colour-colour diagnostic diagrams are validated using two known halo PNe observed by J-PLUS during the scientific verification phase and the first data release (DR1) of S-PLUS and the DR1 of J-PLUS. By applying our criteria to the DR1s ($\sim$1,190 deg$^2$), we identified one PN candidate. However, optical follow-up spectroscopy proved it to be a H II region belonging to the UGC 5272 galaxy. Here, we also discuss the PN and two H II galaxies recovered by these selection criteria. Finally, the cross-matching with the most updated PNe catalogue (HASH) helped us to highlight the potential of these surveys, since we recover all the known PNe in the observed area. The tools here proposed to identify PNe and separate them from their emission-line contaminants proved to be very efficient thanks to the combination of many colours, even when applied -like in the present work- to an automatic photometric search that is limited to compact PNe.

### Bibliographic note

The final, definitive version of this article has been published in the Journal, Astronomy and Astrophysics, 633, 2020, © EDP Sciences.