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Changes between Version 66 and Version 67 of Background_Dark_Model


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Timestamp:
May 17, 2012, 1:07:27 PM (14 years ago)
Author:
watersc1
Comment:

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  • Background_Dark_Model

    v66 v67  
    11[wiki:Background_Continuity Return]
     2
     3== May 17, 2012 ==
     4
     5Following up on Nigel's work on false positive/star correlations, I used the most recent finalsynthtest footprint reduction to match false positives (the 19624 detections that have good flags, are qf perfect, and are above the 5-sigma limit, but are only detected one time) against the stars in the synthetic catalog (to avoid bright stars that have erroneous PS1 REFCAT magnitudes)
     6
     7[[Image(false_positive_star_cor.png,400px)]]
     8
     9Given the clear distribution of detections near bright stars, I placed a cut to isolate the detections that are correlated with the bright star (log10(R) < (g*_synthcat - 10) / -7.0; g*_synthcat < 15).  This cut catches 6864 of the false detections, suggesting ~1/3 of the remaining false positives are associated with false detections around bright stars.
    210
    311== May 15, 2012 ==