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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20140107T123000
DTEND;TZID=Atlantic/Canary:20140107T133000
UID:iactalks-575
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/575
CREATED:2014-01-07T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Measuring galaxy clustering in photometric redshift surveys
DESCRIPTION:Measuring galaxy clustering in photometric redshift surveys\nDr
 . Aurelio Carnero Crosell\n\nIn this talk I will show how we can study cos
 molgy in a photometric redshift galaxy survey, by means of the angular clu
 stering of galaxies. Previously to fit your data to a cosmological model, 
 the need for a representative, clean and reliable galaxy catalog imposes m
 any constrains in the selection of your data, from the day the data was ta
 ken, up to the final galaxy catalog used in the cosmological Analysis. I w
 ill try to introduce those issues that are most important for the analysis
  of galaxy clustering: data reduction and detection limit, catalog pruning
 , sample selection, photometric redshifts, star/galaxy separation and the 
 need for a detailed angular and depth mask. Once a neat catalog is build u
 pon the raw data of the survey, the cosmological analysis can start confid
 ently. In this context, I will show as an example, the last cosmological r
 esults obtained from the DR8 SDSS-III photometric sample, conveniently cor
 rected from systematic errors.
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