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J-PLUS: A first glimpse at the spectrophotometry of asteroids. The MOOJa catalog

David Morate, Jorge Marcio Carvano, Álvaro Álvarez-Candal, Mário De Prá, Javier Licandro, Andrés Galarza, Max Mahlke, Enrique Solano-Márquez, Javier Cenarro, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Carlos López-Sanjuan (+13 others)
2021 Astronomy and Astrophysics  

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Context. The Javalambre Photometric Local Universe Survey (J-PLUS) is an observational campaign that aims to obtain photometry in 12 ultraviolet-visible filters (0.3−1 µm) over ∼8500 deg 2 of the sky observable from Javalambre (Teruel, Spain). Due to its characteristics and observation strategy, this survey will allow a great number of Solar System small bodies to be analyzed, and with improved spectrophotometric resolution with respect to previous large-area photometric surveys in optical
more » ... engths. Aims. The main goal of the present work is to present the first catalog of magnitudes and colors of minor bodies of the Solar System compiled using the first data release (DR1) of the J-PLUS observational campaign: the Moving Objects Observed from Javalambre (MOOJa) catalog. Methods. Using the compiled photometric data we obtained very-low-resolution reflectance (photo)spectra of the asteroids. We first used a σ-clipping algorithm in order to remove outliers and clean the data. We then devised a method to select the optimal solar colors in the J-PLUS photometric system. These solar colors were computed using two different approaches: on one hand, we used different spectra of the Sun convolved with the filter transmissions of the J-PLUS system, and on the other, we selected a group of solar-type stars in the J-PLUS DR1 according to their computed stellar parameters. Finally, we used the solar colors to obtain the reflectance spectra of the asteroids. Results. We present photometric data in the J-PLUS filters for a total of 3122 minor bodies (3666 before outlier removal), and we discuss the main issues with the data, as well as some guidelines to solve them.
doi:10.1051/0004-6361/202038477 fatcat:pp67y3nusnapnbwwuukckrdgse
Citation

David Morate, Jorge Marcio Carvano, Álvaro Álvarez-Candal, Mário De Prá, Javier Licandro, Andrés Galarza, Max Mahlke, Enrique Solano-Márquez, Javier Cenarro, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Carlos López-Sanjuan, Antonio Marín-Franch, Mariano Moles, Jesús Varela, Héctor Vázquez Ramió, Jailson Alcaniz, Renato Dupke, Alessandro Ederoclite, Claudia Mendes de Oliveira, Laerte Sodré, Raul E. Angulo, Francisco M. Jiménez-Esteban, Beatriz B. Siffert, J-PLUS. "J-PLUS: A first glimpse at the spectrophotometry of asteroids. The MOOJa catalog." Astronomy and Astrophysics (2021)