Ohio State is in the process of revising websites and program materials to accurately reflect compliance with the law. While this work occurs, language referencing protected class status or other activities prohibited by Ohio Senate Bill 1 may still appear in some places. However, all programs and activities are being administered in compliance with federal and state law.

Cosmology Lunch: "PAU Survey: Overview and current photo-z results" Alex Alarcon

astrolunch
Thu, May 10, 2018
2:30 pm - 3:30 pm
M2005 Price Place

In this talk I will give an overview of the Physics of the Accelerating Universe Survey (PAUS): a unique combination of a large field-of-view and 40 narrow-band (NB) filters (12.5nm FWHM) that span the wavelength range from 450nm to 850nm and that was commissioned successfully in June 2015 on the WHT. This exquisite wavelength sampling results in photometric redshifts with a precision that approaches that of spectroscopic measurements, while being able to cover large areas of sky. I will present the current photometric redshift performance comparing to the zCOSMOS spectroscopic sample and the new photo-z template-based code that we have developed to estimate photometric redshifts for a narrow band photometric survey.