Fast Offline Analysis OP313 May 2024 P064

General information

• Name of the source: OP 313
• Brief description of the source:
  • Object type : FSRQ
  • Redshift (z) : 0.997
  • Other relevant information
  • RA: 13 10 28.6638 (hh mm ss), Dec: +32 20 43.783 (dd mm ss)
  • RA, Dec in deg (ICRS): 197.619432, 32.345495

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

Data-taking information

• Dates of data-taking:
  • Date (time of observation h)
    • ZD range (deg): Zenith Range
    • AZ range (deg): Azimuth Range
    • Transmission9km:
    • Runs:
    • Observations:

'2024-05-01': [17220, 17221, 17222, 17223]

• Data quality selection applied on above data sample: only 17221 and 17222 survive the data quality cuts.
• Joint observations with MAGIC? : Simultaneous observations but MAGIC GPS not working so timestamp matching between LST-1 and MAGIC cannot be properly done.
• Information on data-taking (observations summaries): https://www.lst1.iac.es/datacheck/observation_overview/2024/05/run_summary_2024_05_01.pdf

General analysis information

• source-independent analysis
• lstchain version: v0.10.7 (software school)
• DL1b standard production (v0.10/tailcut84), run-wise merged files in:

/fefs/aswg/data/real/DL1/20240501/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_3476

Random forest

Path to the models used:

/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_3476

DL2 data

Config file:

/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_3476/lstchain_config_2024-01-31.json

Files in:

/fefs/aswg/workspace/irene.jimenez/FOA/OP313_20240501_data/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": 0.95,
   "min_theta_cut": 0.0,
   "max_theta_cut": 0.2,
   "fill_theta_cut": 0.2,
   "allowed_tels": [1]
 },

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

High-level analysis

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

Analysis Results

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: 100 GeV - 10 TeV

Stacked observations

• 2024-05-01

Spectral results

• 2024-05-01

Spectral parameters: PL+EBL(dominguez)

  type      name         value         unit        error       min     max frozen is_norm link
--------  ----------  ----------  --------------  --------- ---------  --- ------ ------- ----
spectral       index  1.9394e+00                  7.889e-01       nan  nan  False   False 
spectral   amplitude  9.2076e-09  TeV-1 s-1 cm-2  2.605e-09       nan  nan  False    True  
spectral   reference  1.0000e-01             TeV  0.000e+00       nan  nan   True   False 
spectral  alpha_norm  1.0000e+00                  0.000e+00       nan  nan   True   False 
spectral    redshift  9.9700e-01                  0.000e+00       nan  nan   True   False 

Light curve

• 2024-05-01