Fast Analysis PKS1725 ToO Feb Mar 2024 P062

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Fast analysis PKS1725 ToO P062 (March 2024)

General information

  • Name of the source: PKS1725+123
  • Brief description of the source:
    • Object type : FSRQ
    • Redshift (z) : 0.58
    • Other relevant information: Observations triggered because Seiya's Fermi-LAT analysis found 2 HE photons (>7 GeV) from PKS 1725+123. The latest 3-days SED also has a hard index (1.69).
    • RA: 17 28 00.5 (hh mm ss), Dec: +12 17 20.4 (dd mm ss)
    • RA, Dec in deg (ICRS): 262.02938006, 12.26096821
  • Analysis by:
    • Daniel Morcuende (IAA-CSIC - dmorcuende@iaa.es)

Data-taking information

  • Dates of data-taking:
    • Date (time of observation h): 2024-03-16 (0.9 h livetime)
      • ZD range (deg): 20 - 35 deg
      • AZ range (deg): 110 - 130 deg
      • Runs:
'2024-03-16': [17183, 17184, 17185, 17186]
  • Joint observations with MAGIC? : No

General analysis information

  • source-independent analysis
  • lstchain v0.10.7

Monte Carlo information

  • All-sky MC production used: 20240131_allsky_v0.10.5_all_dec_base
    • Declination line (training): dec_2276

DL1 data

LSTOSA standard production (v0.10/tailcut84) of DL1b run-wise merged files.

/fefs/aswg/data/real/DL1/YYYYMMDD/v0.10/tailcut84/dl1_LST-1.Run?????.h5

Random forest

Source declination is 12.3 deg. Two closest MC declination tracks are 9 and

/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_2276


DL2 data

Config file:


Files in:

/fefs/aswg/workspace/daniel.morcuende/data/real/DL2/PKS1725/dec_2276

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: 0.04 deg2 for signal extraction
  • normalization range 0.1 - 0.4 deg2
  • 3 off positions
  • Energy range 10 - 1000 GeV


  • 2024-03-16

Theta2 pks1725 20240316 dmorcuende.png

Significance map

Spectral results

Light curve