S5 First Epoch BNS

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S5 First EpochBNS BBH Inspiral Update

• Duncan Brown1, Drew Keppel1, Eirini Messaritaki2
• 1California Institute of Technology,
• 2Univeristy of Wisconsin-Milwaukee
• LSC Meeting, August 2006
• LIGO-G060424-00-Z

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Introduction

• Talk divided into three parts
• S5 Online BNS Analysis
• S5 First Epoch BNS search
• Start of run (11/4/05) to start of LHO
  commissioning (02/06/06)
• Standard 1 - 3 Msun 2pN inspiral templates
• Full search pipeline (filter, signal based
  vetoes, coincidence)
• S5 First Epoch BBH search
• Start of run (11/4/05) to start of LHO
  commissioning (02/06/06)
• 3 - 30 Msun 2pN inspiral templates
• Full search pipeline (filter, signal based
  vetoes, coincidence)

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S5 Online BNS Analysis

• Runs with latency 20 mins at LHO and LLO
• Results displayed in control room via InspiralMon
• Glitch Pages
• Display top 10 loudest single IFO triggers with
  SNR gt 25
• Scimons encouraged to look at glitches with no
  current DQ explanation
• Experts encouraged to create DQ flags for
  glitches that are obvious but are not currently
  flagged
• ASI_CORR_OVERFLOW was created in this way

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S5 First Epoch BNS Analysis

• Distance to optimally oriented 1.4,1.4 solar mass
  BNS at ? 8

First S5 Epoch Nov 4, 2005 - Feb 6, 2006
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BNS Parameter Accuracy

• Mchirp accuracy 0.01 Msun
• Eta accuracy 0.1
• End time accuracy 5 ms

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BNS Accidental Coincidencesand Simulated Signals

• Tune pipeline using background, playground (10
  of data) and injections
• Measure background by applying time slides before
  coincidence
• Add simulated signals to detector data to
  evaluate analysis performance

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BNS Vetoes

• Two types of Vetoes are used to eliminate time
  slides
• Data Quality Vetoes (e.g. MASTER_OVERFLOW_LSC,
  PRE_LOCKLOSS_120_SEC, etc.)
• Signal-Based Vetoes (e.g. Chi-squared and
  R-squared vetoes)

• All vetoed injections above coincide with
  glitches.

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BNS Coincident Triggers Veto Hardware
Injections

• Double coincident H1L1 time slide triggers from
  double and triple coincident time

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BNS Coincident Triggers also use Category 2
3 Vetoes

• Double coincident H1L1 time slide triggers from
  double and triple coincident time

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BNS Coincident Triggers also use R-square Veto

• Double coincident H1L1 time slide triggers from
  double and triple coincident time

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Histogram of Luminosity

• The galaxy catalog has been extended to 100 Mpc
• only complete to 25 Mpc
• we are now sensitive to those distances

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S5 Epoch 1 BNS Plans

• Finish final tuning of vetoes before opening box
• Total time in triple coincident data 0.1 years
• The total luminosity 300 L10 190 MWEG
• R90 0.08 yr-1 L10-1 0.13 yr-1 MWEG-1
• But would not quote this number outside this
  room
• Efficiency computed at threshold, not loudest
  event (limit will go up)
• Error estimates not included (limit will go up)
• No consideration of background, etc.
• Not reviewed!

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S5 First Epoch BBH Analysis

• Distance to optimally oriented equal mass
  binaries at ? 8

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BBH Parameter Accuracy

• Mchirp accuracy 5 Msun
• Eta accuracy 0.15
• End time accuracy 20 ms

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BBH Chi-squared Veto

• Minimal loss in efficiency due to Chi-squared
  veto for all injection runs
• EOB
• PadeT1
• TaylorT1
• TaylorT3

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BBH Slides before Chi-squared

• Double coincident time slide triggers from HXL1
  in triple coincident time

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BBH Slides after Chi-squared

• Double coincident time slide triggers from HXL1
  in triple coincident time

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BBH Accidental Coincidencesand Simulated Signals

• Tune pipeline using background, playground (10
  of data) and injections
• Measure background by applying time slides before
  coincidence
• Add simulated signals to detector data to
  evaluate analysis performance

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S5 Epoch 1 BBH Plans

• Finishing final tuning of vetoes
• Finishing looking at missed nearby injections

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Future for S5

• Complete S5 first epoch BNS upper limit (or
  detection?) for approval at November LSC meeting
• Setting up automated code to analyze data for BNS
  weekly for a detection/no detection statement
• BNS final upper limit from 1 yr of S5 data
  planned to be completed for Feb. 2007

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The End
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Efficiency in Triple Coincident Data
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Efficiency in Triple Coincident Data
These are injections found as H1H2 double
coincidence, but which have a large effective
distance in LLO (due to detector misalignment)
Apparent structure here due to low number
statistics
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Histogram of Number of Galaxies