Fast offline analysis 1ES 0806+524 December 2024 P071

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Fast offline analysis 1ES 0806+524 December 2024 P071

General information

• Name of the source: 1ES 0806+524
• Brief description of the source:
  • Object type : BL Lac
  • Redshift (z) : 0.138
  • Other relevant information
  • RA: 08 09 49.187 (hh mm ss), Dec: +52 18 58.25 (dd mm ss)
  • RA, Dec in deg (ICRS): 122.454946, 52.316181

• Analysis by:
  • Javier Méndez-Gallego (IAA-CSIC - jmendez@iaa.es)

Data-taking information

• Dates of data-taking:
  • 2024-12-02 (1.24 h)
    • ZD range (deg): 20-30
    • Observations:

2024-12-02: [20003, 20004, 20005, 20006]

• Data quality selection:

Not performed

• Joint observations with MAGIC?: No
• Information on data-taking (observations summaries): Some drops in the rates that might indicate the presence of clouds, see details in [1]

General analysis information

• source-independent analysis
• lstchain version: v0.10.13
• DL1b standard production (v0.10/tailcut84), run-wise merged files in:

/fefs/aswg/data/real/DL1/20241202/v0.10/tailcut84/dl1_LST-1.Run?????.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: (example below)

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

DL2 data

The config file to produce the DL2 files must be the one used to produce the RF models. Should be located together with model's files.

Files in:

/fefs/aswg/workspace/javier.mendez/foa_P071/dec02/1ES0806/dl2-like_step

DL3 data & IRF

Files in:

/fefs/aswg/workspace/javier.mendez/foa_P071/dec02/1ES0806/dl3-like_step

Configuration used for producing IRF/DL3 files (you can leave standard settings):

 "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": 0.95,
   "min_theta_cut": 0.0,
   "max_theta_cut": 0.2,
   "fill_theta_cut": 0.2,
   "allowed_tels": [1]
 },

• Standard cuts: Intensity > 50 p.e., 70 % efficiency for both gammaness and theta gamma-ray selection energy-dependent cuts.
• Max theta cut: 0.2 deg.
• 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: 0.01-10.0 TeV

Daily results

• 2024-11-22: Non detected

Last Run with more than 2 sigma of detection.