2 Hits in 5.0 sec

Photo-z-SQL: Integrated, flexible photometric redshift computation in a database

R. Beck, L. Dobos, T. Budavári, A.S. Szalay, I. Csabai
2017 Astronomy and Computing  
We present a flexible template-based photometric redshift estimation framework, implemented in C#, that can be seamlessly integrated into a SQL database (or DB) server and executed on-demand in SQL.  ...  The code is available for download at  ...  Summary In this article, we presented a new C# photometric redshift estimation code, Photo-z-SQL.  ... 
doi:10.1016/j.ascom.2017.03.002 fatcat:ouw3lhbzcjanzoenvufc7g3tui

On the realistic validation of photometric redshifts

R. Beck, C.-A. Lin, E. E. O. Ishida, F. Gieseke, R. S. de Souza, M. V. Costa-Duarte, M. W. Hattab, A. Krone-Martins
2017 Monthly notices of the Royal Astronomical Society  
Two of the main problems encountered in the development and accurate validation of photometric redshift (photo-z) techniques are the lack of spectroscopic coverage in feature space (e.g. colours and magnitudes  ...  In this work, we present two galaxy catalogues, Teddy and Happy, built to enable a more demanding and realistic test of photo-z methods.  ...  The program was held in Budapest, Hungary in August/2016 and supported by the Hungarian Academy of Sciences and Astrophysics group at Eötvos Lorand University.  ... 
doi:10.1093/mnras/stx687 fatcat:3yuee5osrbcizefqr65fnllluq