Listar Ciencias Exactas y Naturales por tema "Dark energy"

Mostrando ítems 1-3 de 3

    • First cosmology results using SNe Ia from the dark energy survey : analysis, systematic uncertainties, and validation 

      Brout, Dillon J.; Santiago, Basilio Xavier; DES Collaboration (2019) [Artículo de periódico]
      We present the analysis underpinning the measurement of cosmological parameters from 207 spectroscopically classified SNe Ia from the first 3 years of the Dark Energy Survey Supernova Program (DES-SN), spanning a redshift ...

    • OzDES multifibre spectroscopy for the Dark Energy Survey : 3-yr results and first data release 

      Childress, Michael; Ostrovski, F.; DES Collaboration (2017) [Artículo de periódico]
      We present results for the first three years of OzDES, a six year programme to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre positioner and AAOmega spectrograph on the ...

    • Star/galaxy separation at faint magnitudes : application to a simulated Dark Energy Survey 

      Soumagnac, Maayane Tamar; Abdalla, Filipe B.; Lahav, Ofer; Kirk, Donnacha; Sevilla Noarbe, Ignacio; Bertin, Emmanuel; Rowe, Barnaby T. P.; Annis, James T.; Busha, M. T.; Costa, Luiz N. da; Frieman, Joshua A.; Gaztañaga, Enrique; Jarvis, Michael; Lin, H.; Percival, Will J.; Santiago, Basilio Xavier; Sabiu, Cristiano Giovanni; Wechsler, Risa H.; Wolz, Laura; Yanny, Brian (2015) [Artículo de periódico]
      We address the problem of separating stars from galaxies in future large photometric surveys. We focus our analysis on simulations of the Dark Energy Survey (DES). In the first part of the paper, we derive the science ...