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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=BL Lacertae flare July 2021=
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=BL Lacertae flare August 8, 2021=
  
  
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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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==Data-taking information==
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==Analysis conditions and results==
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* '''Dates of data-taking''':
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* [[BLLac analysis (Nozaki) (lstchain v0.7, LST general meeting 2021 Nov)]]
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** 2021-08-08 (0.41 h)
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* [[BLLac analysis (Nozaki) (lstchain v0.9, south MC, zd20+40, LST general meeting 2022 Apr)]]
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***ZD: 23 - 26 deg
 
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***Transmission9km: >80%
 
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***Runs: 5292-5999
 
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***Joint observations with MAGIC
 
  
  
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==Presentations==
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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
  
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==DL2 data==
 
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Standard run-wise data files produced by LSTOSA.
 
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* lstchain v0.7.3
 
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* tailcut 8-4 (with cleaning based on pedestal RMS)
 
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/fefs/aswg/data/real/DL2/20210709/v0.7.3/tailcut84/dl2_LST-1.Run05219.h5
 
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/fefs/aswg/data/real/DL2/20210709/v0.7.3/tailcut84/dl2_LST-1.Run05220.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05229.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05230.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05231.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05232.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05233.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05234.h5
 
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/fefs/aswg/data/real/DL2/20210710/v0.7.3/tailcut84/dl2_LST-1.Run05235.h5
 
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/fefs/aswg/data/real/DL2/20210712/v0.7.3/tailcut84/dl2_LST-1.Run05251.h5
 
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/fefs/aswg/data/real/DL2/20210712/v0.7.3/tailcut84/dl2_LST-1.Run05252.h5
 
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==DL3 data selection==
 
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*intensity > 30
 
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*r: [0,  1 ]
 
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*wl: [0.05, 1]
 
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*leakage_intensity_width_2: [0, 0.2 ]
 
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*fixed_gh_cut: 0.7
 
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*fixed_theta_cut: 0.2
 
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==High-level analysis==
 
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*Science Tool: gammapy 0.18.2 (+ bugfix https://github.com/gammapy/gammapy/pull/3374)
 
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==Significance of the detection==
 
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1 Off reflected position
 
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Theta2 cut: 0.04 deg
 
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* Squares: Background
 
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* Circles: Signal events
 
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===Date: 2021-07-09===
 
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* List of runs: [5219, 5220]
 
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* Observation time: 0.41 h
 
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* Number of ON events: 257
 
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* Number of OFF events: 234 +/- 15
 
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* Excess: 23 +/- 22
 
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* Li&Ma significance: 1.0 sigma
 
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[[File:Theta2_BLLac_2021-07-09_DMorcuende.png|500px]]
 
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===Date: 2021-07-10===
 
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* List of runs: [5229, 5230, 5231, 5232, 5233, 5234, 5235]
 
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* Observation time: 1.56 h
 
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* Number of ON events: 598
 
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* Number of OFF events: 351 +/- 19
 
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* Excess: 247 +/- 31
 
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* Li&Ma significance: 8.1 sigma
 
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[[File:Theta2_BLLac_2021-07-10_DMorcuende.png|500px]]
 
  
  

Latest revision as of 15:07, 14 April 2022

BL Lacertae flare August 8, 2021[edit]

General information[edit]

  • 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

Analysis conditions and results[edit]


Presentations[edit]



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