J-PLUS: Beyond Spectroscopy. III. Stellar Parameters and Elemental-abundance Ratios for Five Million Stars from DR3

Autor: Yang Huang, Timothy C. Beers, Kai Xiao, Haibo Yuan, Young Sun Lee, Hongrui Gu, Jihye Hong, Jifeng Liu, Zhou Fan, Paula Coelho, Patricia Cruz, F. J. Galindo-Guil, Simone Daflon, Fran Jiménez-Esteban, 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, Laerte Sodré Jr., Raul E. Angulo

Publikováno v: The Astrophysical Journal, Vol 974, Iss 2, p 192 (2024)

We present a catalog of stellar parameters (effective temperature T _eff , surface gravity $\mathrm{log}g$ , age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/Fe], and [ α /Fe]) for some five million stars (4.5 million dwarfs

Externí odkaz: https://doaj.org/article/ad77f3edf33b4139943af0a68c73fc99

J-PLUS: a catalogue of globular cluster candidates around the M 81/M 82/NGC 3077 triplet of galaxies

Autor: Ana L Chies-Santos, Rafael S de Souza, Juan P Caso, Ana I Ennis, Camila P E de Souza, Renan S Barbosa, Peng Chen, A Javier Cenarro, Alessandro Ederoclite, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Carlos López-Sanjuan, Antonio Marín-Franch, Mariano Moles, Jesús Varela, Héctor Vázquez Ramió, Renato Dupke, Laerte Sodré, Raul E Angulo

Publikováno v: Monthly Notices of the Royal Astronomical Society. 516:1320-1338

Globular clusters (GCs) are proxies of the formation assemblies of their host galaxies. However, few studies exist targeting GC systems of spiral galaxies up to several effective radii. Through 12-band Javalambre Photometric Local Universe Survey (J-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b6c890f637a9ffeeb80e07d1f2ffc1
https://doi.org/10.1093/mnras/stac2002

The miniJPAS survey quasar selection II: Machine learning classification with photometric measurements and uncertainties

Autor: Natália V N Rodrigues, L Raul Abramo, Carolina Queiroz, Ginés Martínez-Solaeche, Ignasi Pérez-Ràfols, Silvia Bonoli, Jonás Chaves-Montero, Matthew M Pieri, Rosa M González Delgado, Sean S Morrison, Valerio Marra, Isabel Márquez, A Hernán-Caballero, L A Díaz-García, Narciso Benítez, A Javier Cenarro, Renato A Dupke, Alessandro Ederoclite, Carlos López-Sanjuan, Antonio Marín-Franch, Claudia Mendes de Oliveira, Mariano Moles, Laerte Sodré, Jesús Varela, Héctor Vázquez Ramió, Keith Taylor

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2023, 520 (3), pp.3494-3509. ⟨10.1093/mnras/stac2836⟩

Astrophysical surveys rely heavily on the classification of sources as stars, galaxies or quasars from multi-band photometry. Surveys in narrow-band filters allow for greater discriminatory power, but the variety of different types and redshifts of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e0a2cf8d02a1a4d9a6999a9922fa4b1
https://hal.science/hal-04012294

Costs and benefits of automation for astronomical facilities

Autor: Axel Yanes Díaz, Sergio Rueda-Teruel, Rafael Bello, David Lozano, Miriam Royo Navarro, Tamara Civera, Mikel Domínguez Martínez, Nuria Martínez Olivar, Sergio Chueca, Cesar Iñiguez García, Antonio Marín Franch, Fernando Rueda-Teruel, Guillermo López-Alegre, Samuel Bielsa de Toledo, Jorge Muñoz Maudos, Hector Rueda Asensio, Alejandro Muñoz Teruel, David Garcés Cubel, Ildefonso Soriano Laguía, María Almarcegui Gracia, Javier Cenarro Lagunas, Mariano Moles Villamate, David Cristobal Hornillos, Jesús Varela López, Alessandro Ederoclite, Héctor Vázquez Ramió, Miguel Chioare Díaz Martín, Ramón Iglesias Marzoa, Juan Castillo, Angel López-Sainz, Javier Hernández Fuertes, Muniesa-Gallardo David, Alberto Moreno Signes, Antonio Hernán Caballero, Carlos López Sanjuan, Andrés Del Pino, Akhlaghi Mohammad, Irene Pintos Castro, Juan Antonio Fernández Ontiveros, Fabiola Carolina Hernández Pérez, Stylianos Stylianos, Raul Infante, Teet Kuutma, Alejandro Lumbreras, Natalio Maicas, Jose Luis Lamadrid, Fátima lópez Martinez, Francisco José Galindo Guil, Elvis Lacruz Calderón, Luisa Valdivielso Casas, Maribel Aguilar Martín, Sepideh Eskandarlou, Alejandro Javier Domínguez Fernández, Francisco Arizo Borillo, Silvia Vaquero Valer, Inés Muñoz Igado, María Teresa Alegre Sánchez, Gema María Julián Caballero de España, Alicia Romero, David Casinos Cardo

The Observatorio Astrof\'isico de Javalambre (OAJ{\dag}1) in Spain is a young astronomical facility, conceived and developed from the beginning as a fully automated observatory with the main goal of optimizing the processes in the scientific and gene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd7450475296d1accd15da754621afe

The miniJPAS survey quasar selection I: Mock catalogues for classification

Autor: Carolina Queiroz, L Raul Abramo, Natália V N Rodrigues, Ignasi Pérez-Ràfols, Ginés Martínez-Solaeche, Antonio Hernán-Caballero, Carlos Hernández-Monteagudo, Alejandro Lumbreras-Calle, Matthew M Pieri, Sean S Morrison, Silvia Bonoli, Jonás Chaves-Montero, Ana L Chies-Santos, L A Díaz-García, Alberto Fernandez-Soto, Rosa M González Delgado, Jailson Alcaniz, Narciso Benítez, A Javier Cenarro, Tamara Civera, Renato A Dupke, Alessandro Ederoclite, Carlos López-Sanjuan, Antonio Marín-Franch, Claudia Mendes de Oliveira, Mariano Moles, David Muniesa, Laerte Sodré, Keith Taylor, Jesús Varela, Héctor Vázquez Ramió

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2023, 520 (3), pp.3476-3493. ⟨10.1093/mnras/stac2962⟩

In this series of papers, we employ several machine learning (ML) methods to classify the point-like sources from the miniJPAS catalogue, and identify quasar candidates. Since no representative sample of spectroscopically confirmed sources exists at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ae2e8f72c34b0ad7c5b25be1945e616