Fast Offline Analysis MAGIC J2001+435 August 2024 P067

General information

• Name of the source: MAGIC J2001+435
• Brief description of the source:
  • Object type : Coincident with BL Lac source 1FGL J2001.1+4351.
  • Redshift (z) : 0.1739
  • Other relevant information
  • RA, Dec in deg (ICRS): 300.3100, 43.8800

• Analysis by:
  • Irene Jiménez Martínez (MPI - irenejm@mpp.mpg.de)

Data-taking information

• Dates of data-taking:
  • Date: 2024-08-09 (2.11 h)
    • ZD range (deg): 15 - 27
    • Observations:

2024-08-05: [18538, 18539, 18540, 18541, 18542, 18543, 18544]

• Data quality selection: no run survives the data quality selection, but they all pass all selections except the dR/dI rate selection. FOA is performed with all runs.

• Joint observations with MAGIC?: no.
• Information on data-taking (observations summaries): https://www.lst1.iac.es/datacheck/observation_overview/2024/08/run_summary_2024_08_09.pdf

General analysis information

• source-independent analysis
• lstchain version: v0.10.9
• DL1b standard production (v0.10/tailcut84), run-wise merged files in:

/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18538.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18539.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18540.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18541.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18542.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18543.h5
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18544.h5

Monte Carlo information

Write below the MC production ID among the existing MC

• All-sky MC production used: 20240131_allsky_v0.10.5_all_dec_base
• Declination line (training): dec_4822

Random forest

Path to the models used:

/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_4822

DL2 data

Config file:

/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_4822/lstchain_config_2024-01-31.json

Files in:

/fefs/aswg/workspace/irene.jimenez/FOA/MAGICJ2001+435_20240809/DL2

DL3 data & IRF

"EventSelector": {
   "filters": {
     "intensity": [50, Infinity],
     "width": [0, Infinity],
     "length": [0, Infinity],
     "r": [0, 1],
     "wl": [0.01, 1],
     "leakage_intensity_width_2": [0, 1],
     "event_type": [32, 32]
   }
 },
 "DL3Cuts": {
   "min_event_p_en_bin": 100,
   "min_gh_cut": 0.1,
   "max_gh_cut": 0.98,
   "min_theta_cut": 0.1,
   "max_theta_cut": 0.32,
   "fill_theta_cut": 0.32,
   "allowed_tels": [1]
 }

• 70 % efficiency for both gammaness and theta gamma-ray selection cuts
• Point-like IRF

High-level analysis and results

Analysis settings

• Gammapy version: 1.1
• 1D analysis (point-like IRF)

Theta2 plot

Settings:

• Theta2 cut for signal extraction: 0.04 deg2
• Normalization range: 0.1 - 0.4 deg2
• Number of off positions: 3
• Energy range: 0.01 - 10 TeV

Daily results

• 2024-08-09:

Significance and Excess sky maps

Camera seems rather homogeneous, with some hot spots, one of them in the center.