Difference between revisions of "Analysis BLLac Aug 2021 Nozaki"

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(Created page with "=BL Lacertae flare July 2021= ==General information== * '''Name of the source''': BL Lacertae * '''Brief description of the source''': ** IBL / LBL ** highly variable ** z...")
 
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* Analysis by Seiya Nozaki (Kyoto U, - nozaki@cr.scphys.kyoto-u.ac.jp)
 
* Analysis by Seiya Nozaki (Kyoto U, - nozaki@cr.scphys.kyoto-u.ac.jp)
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* Crab check
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** https://indico.cta-observatory.org/event/3671/contributions/31276/attachments/20319/28344/20211118_SourceDepAnalysis.pdf
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* Presentation in LST General meeting (Nov 2021)
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** https://indico.cta-observatory.org/event/3671/contributions/31287/attachments/20340/28378/20211119_BLLac.pdf
  
 
==Data-taking information==
 
==Data-taking information==
 
* '''Dates of data-taking''':  
 
* '''Dates of data-taking''':  
 
** 2021-08-08 (0.41 h)
 
** 2021-08-08 (0.41 h)
***ZD: 23 - 26 deg
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***ZD: 13 - 32 deg
 
***Transmission9km: >80%
 
***Transmission9km: >80%
***Runs: 5292-5999
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***Runs: 5552-5559
 
***Joint observations with MAGIC
 
***Joint observations with MAGIC
  
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==DL1 data==
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Reprocessed using DL1a files procuded by LSTOSA (lstchain v0.7.3)
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(lstchain-0.7.6.dev242+g2086cb9)
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* real data: ailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning
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/fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/DL1_raw/lstchain_standard_config.json
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* MC: ailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning, PSF+NSB tuning
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/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/DL1_raw/lstchain_dl1ab_tune_MC_to_BLLac_config.json
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Revision as of 05:19, 20 November 2021

BL Lacertae flare July 2021

General information

  • Name of the source: BL Lacertae
  • Brief description of the source:
    • IBL / LBL
    • highly variable
    • z = 0.069
    • RA: 22 02 43.3 (hh mm ss), Dec: +42 16 40 (dd mm ss)
    • RA, Dec in deg (ICRS): 330.68038, 42.277772

Data-taking information

  • Dates of data-taking:
    • 2021-08-08 (0.41 h)
      • ZD: 13 - 32 deg
      • Transmission9km: >80%
      • Runs: 5552-5559
      • Joint observations with MAGIC

DL1 data

Reprocessed using DL1a files procuded by LSTOSA (lstchain v0.7.3) (lstchain-0.7.6.dev242+g2086cb9)

  • real data: ailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning
/fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/DL1_raw/lstchain_standard_config.json
  • MC: ailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning, PSF+NSB tuning
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/DL1_raw/lstchain_dl1ab_tune_MC_to_BLLac_config.json


DL2 data

Standard run-wise data files produced by LSTOSA.

  • lstchain v0.7.3
  • tailcut 8-4 (with cleaning based on pedestal RMS)
/fefs/aswg/data/real/DL2/20210709/v0.7.3/tailcut84/dl2_LST-1.Run05219.h5
/fefs/aswg/data/real/DL2/20210709/v0.7.3/tailcut84/dl2_LST-1.Run05220.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05229.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05230.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05231.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05232.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05233.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05234.h5
/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05235.h5
/fefs/aswg/data/real/DL2/20210712/v0.7.3/tailcut84/dl2_LST-1.Run05251.h5
/fefs/aswg/data/real/DL2/20210712/v0.7.3/tailcut84/dl2_LST-1.Run05252.h5

DL3 data selection

  • intensity > 30
  • r: [0, 1 ]
  • wl: [0.05, 1]
  • leakage_intensity_width_2: [0, 0.2 ]
  • fixed_gh_cut: 0.7
  • fixed_theta_cut: 0.2

High-level analysis

Significance of the detection

1 Off reflected position
Theta2 cut: 0.04 deg
  • Squares: Background
  • Circles: Signal events

Date: 2021-07-09

  • List of runs: [5219, 5220]
  • Observation time: 0.41 h
  • Number of ON events: 257
  • Number of OFF events: 234 +/- 15
  • Excess: 23 +/- 22
  • Li&Ma significance: 1.0 sigma

Theta2 BLLac 2021-07-09 DMorcuende.png

Date: 2021-07-10

  • List of runs: [5229, 5230, 5231, 5232, 5233, 5234, 5235]
  • Observation time: 1.56 h
  • Number of ON events: 598
  • Number of OFF events: 351 +/- 19
  • Excess: 247 +/- 31
  • Li&Ma significance: 8.1 sigma

Theta2 BLLac 2021-07-10 DMorcuende.png



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