Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/256091COMPARTIR / EXPORTAR:
 SHARE
 CORE
BASE
|
|
| Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
| Título: | Dark energy survey year 3 results: Photometric data set for cosmology |
Autor: | Sevilla-Noarbe, I.; Alarcon, Alex CSIC ORCID; Gaztañaga, Enrique CSIC ORCID; Ávila, S.; Castander, Francisco J. CSIC ORCID; Crocce, Martín CSIC ORCID; Serrano, Santiago CSIC ORCID; Wilkinson, Reese D.; DES Collaboration | Palabras clave: | Surveys Catalogs Observational cosmology |
Fecha de publicación: | 17-abr-2021 | Editor: | IOP Publishing | Citación: | Astrophysical Journal - Supplement Series 254(2): 24 (2021) | Resumen: | We describe the Dark Energy Survey (DES) photometric data set assembled from the first three years of science operations to support DES Year 3 cosmologic analyses, and provide usage notes aimed at the broad astrophysics community. Y3 GOLD improves on previous releases from DES, Y1 GOLD, and Data Release 1 (DES DR1), presenting an expanded and curated data set that incorporates algorithmic developments in image detrending and processing, photometric calibration, and object classification. Y3 GOLD comprises nearly 5000 deg of grizY imaging in the south Galactic cap, including nearly 390 million objects, with depth reaching a signal-to-noise ratio ∼10 for extended objects up to i ∼ 23.0, and top-of-the-atmosphere photometric uniformity <3 mmag. Compared to DR1, photometric residuals with respect to Gaia are reduced by 50%, and per-object chromatic corrections are introduced. Y3 GOLD augments DES DR1 with simultaneous fits to multi-epoch photometry for more robust galactic color measurements and corresponding photometric redshift estimates. Y3 GOLD features improved morphological star–galaxy classification with efficiency >98% and purity >99% for galaxies with 19 < i < 22.5. Additionally, it includes per-object quality information, and accompanying maps of the footprint coverage, masked regions, imaging depth, survey conditions, and astrophysical foregrounds that are used to select the cosmologic analysis samples. | Descripción: | Sevilla-Noarbe, I., et al. (DES Collaboration) | Versión del editor: | http://doi.org/10.3847/1538-4365/abeb66 | URI: | http://hdl.handle.net/10261/256091 | DOI: | 10.3847/1538-4365/abeb66 | Identificadores: | doi: 10.3847/1538-4365/abeb66 issn: 0067-0049 |
| Aparece en las colecciones: | (IFT) Artículos (ICE) Artículos |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| accesoRestringido.pdf | 15,38 kB | Adobe PDF |  Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
98
checked on 06-abr-2024
WEB OF SCIENCETM
Citations
74
checked on 29-feb-2024
Page view(s)
37
checked on 18-abr-2024
Download(s)
2
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.