Difference between revisions of "Dragonfly Pulsar analysis CristianPozo"

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(Created page with "==General information== * '''Name of the source''': Dragonfly Pulsar * '''Brief description of the source''': :- Object type : Pulsar :- RA, Dec in deg (ICRS): 83.63, 22.01...")
 
 
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Line 1: Line 1:
 
==General information==
 
==General information==
* '''Name of the source''': Dragonfly Pulsar
+
* '''Name of the source''': Dragonfly Pulsar (PSRJ2021+3651)
 
* '''Brief description of the source''':  
 
* '''Brief description of the source''':  
 
:- Object type : Pulsar
 
:- Object type : Pulsar
:- RA, Dec in deg (ICRS): 83.63, 22.01
+
:- RA, Dec in deg (ICRS): 305.27252, 36.85126
  
 
==People involved in this analysis (LST-1 and new Fermi-LAT analysis)==
 
==People involved in this analysis (LST-1 and new Fermi-LAT analysis)==
Line 19: Line 19:
 
* '''Summary of selection cuts''':  
 
* '''Summary of selection cuts''':  
  
:- Zenith < 70 deg
+
:- Zenith < 70 deg and Zenith < 20 deg
 
:- elapsed_time > 2 min
 
:- elapsed_time > 2 min
 
:- transmission_cut > 0.60
 
:- transmission_cut > 0.60
Line 27: Line 27:
 
:- Cosmic rate( > 30 p.e.) > 3-4 ev/s (depends on zd)
 
:- Cosmic rate( > 30 p.e.) > 3-4 ev/s (depends on zd)
  
 +
* '''Number of runs with zenith < 70 deg (% is w.r.t. those in Sky region & zenith range)''':
  
* '''List of selected runs''':  
+
  + In the requested Sky region and range of dates: 132
 +
  + zenith in requested range: 132
 +
  + NSB in requested range: 131 (99.2%)
 +
  + FF and pedestal interleaved events are present: 130 (98.5%)
 +
  + Stable pointing: 129 (97.7%)
 +
  + dR/dI fit P-value ok: 128 (97.0%)
 +
  + dR/dI LS periodogram ok: 127 (96.2%)
 +
  + dR/dI index ok: 121 (91.7%)
 +
  + dR/dI rate ok: 48 (36.4%)
 +
  + intensity threshold ok: 48 (36.4%)
 +
 
 +
Note: about 64% of all *dark-night* observations within ZD<80 deg fulfill all quality cuts.
 +
(in the stable, good-quality period 2022-11-18 - 2023-02-14, 92% of *dark-night* observations within ZD<80 deg do).
 +
 
 +
* '''List of selected runs (Zenith < 70 deg)''':  
  
 
  1  :  2022-06-28  :  [8948 8949 8950 8951 8952 8953 8954 8955 8956 8957 8958 8959]
 
  1  :  2022-06-28  :  [8948 8949 8950 8951 8952 8953 8954 8955 8956 8957 8958 8959]
Line 39: Line 54:
 
  8  :  2023-10-06  :  [14918 14919 14920 14921 14922 14923 14924]
 
  8  :  2023-10-06  :  [14918 14919 14920 14921 14922 14923 14924]
 
  9  :  2023-11-13  :  [15489 15490 15491 15495 15497]
 
  9  :  2023-11-13  :  [15489 15490 15491 15495 15497]
 
  
== MC information ==
+
* '''Number of runs with zenith < 20 deg (% is w.r.t. those in Sky region & zenith range)''':
  
:- 20221027_v0.9.9_crab_tuned
+
  + In the requested Sky region and range of dates: 132
:- AllSky MC using different test nodes for different runs depending on sky location.
+
  + zenith in requested range: 77
 +
  + NSB in requested range: 76 (98.7%)
 +
  + FF and pedestal interleaved events are present: 75 (97.4%)
 +
  + Stable pointing: 74 (96.1%)
 +
  + dR/dI fit P-value ok: 73 (94.8%)
 +
  + dR/dI LS periodogram ok: 73 (94.8%)
 +
  + dR/dI index ok: 72 (93.5%)
 +
  + dR/dI rate ok: 31 (40.3%)
 +
  + intensity threshold ok: 31 (40.3%)
  
* '''PSF and NSB tuned''':
+
Note: about 64% of all *dark-night* observations within ZD<80 deg fulfill all quality cuts.
  "image_modifier": {
+
(in the stable, good-quality period 2022-11-18 - 2023-02-14, 92% of *dark-night* observations within ZD<80 deg do).
    "increase_nsb": true,
 
    "extra_noise_in_dim_pixels": 1.27,
 
    "extra_bias_in_dim_pixels": 0.665,
 
    "transition_charge": 8,
 
    "extra_noise_in_bright_pixels": 2.08,
 
    "increase_psf": false,
 
    "smeared_light_fraction": 0
 
    },
 
  
* '''Tuned DL1b MC''':
+
* '''List of selected runs (Zenith < 20 deg)''':
:- Training sample: /fefs/aswg/data/mc/DL1/AllSky/20221027_v0.9.9_crab_tuned/TrainingDataset/
 
:- Testing sample (AllSky MC): /fefs/aswg/data/mc/DL1/AllSky/20221027_v0.9.9_crab_tuned/TestingDataset/
 
  
* '''Random Forests - Source Dependent''':
+
1  :  2022-06-28  : [8951 8952 8953 8954 8955 8956 8957 8958 8959]
:- General path: /fefs/aswg/workspace/seiya.nozaki/Crab_performance_paper/20221027_v0.9.9_crab_tuned/std/RF/trained_models/
+
: 2022-06-29  : [8980 8982 8983 8985 8986 8987]
:- Configuration file: /fefs/aswg/workspace/seiya.nozaki/Crab_performance_paper/20221027_v0.9.9_crab_tuned/std/DL2/lstchain_src_dep_config.json
+
: 2023-05-16  : [13066 13067]
 
+
4  :  2023-05-18  :  [13098 13099]
* '''DL2 MC (testing only)''':
+
: 2023-06-22  :  [13520 13521 13522]
:- Souce-dependent
+
: 2023-06-25  :  [13588 13589 13590 13591]
:- AllSky MC depending on the sky location.
+
: 2023-10-05  :  [14910]
:- General path: /fefs/aswg/workspace/seiya.nozaki/Crab_performance_paper/20221027_v0.9.9_crab_tuned/std/DL2_MC/
+
: 2023-10-06  : [14918 14919 14920 14921]
  
 
== DL1 data ==
 
== DL1 data ==
Line 76: Line 88:
  
 
== DL2 data ==
 
== DL2 data ==
:- Data before August 2021: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL2_preAug/
+
:- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL2
:- Data after August 2021: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL2_posAug/
 
  
 
===IRFs===
 
===IRFs===
 
:- Point-like
 
:- Point-like
 
:- IRFs for each MC node and for each intensity cut
 
:- IRFs for each MC node and for each intensity cut
:- IRF path before Aug2021: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/IRF/IRF_cut80/eff_0.7/
+
:- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/IRF
:- IRF path after Aug2021: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/IRF/IRF_cut50/eff_0.7/
 
 
   
 
   
* IRF for different MC efficiency for extra checks: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/IRF/IRF_cut{int_cut}/eff_{eff}/
 
 
 
== DL3 data ==
 
== DL3 data ==
:- General path for standard MC efficiency: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL3/eff_0.7/
+
:- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL3
:- General path for different MC efficiency: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL3/eff_{eff}/
 
:- Distribution of runs in AllSKy MC test nodes:
 
 
 
* mc_node = [10,102.199]
 
  [2929,2930,2931,2950,2970,2971,2972,2973,2988,3095,3096,3273,3274,3275,3318,3319,3320,3338,9438,10001,
 
  10002,10880,10909,10981,11087,11120,11121,11374,11463,11464,11491,11492,11576,11577,11625,11626]
 
 
 
* mc_node = [10,248.117]
 
  [2914,2932,2933,2934,2974,2975,2976,2989,2990,2991,3004,3005,3006,3276,3277,3278,3279,3321,3328,3329,
 
  3330,3339,3340,3355,3356,3598,3632,3672,3673,3674,3675,6872,6873,6874,6892,6893,7133,7161,7195,7196,
 
  7197,7227,7228,7253,7274,10881,10882,10910,10911,10946,10947,10948,10982,10983,11014,11088,11089,11122,
 
  11123,11402,11465,11466,11467,11493,11578,11579,11627,11628,11667]
 
 
* mc_node = [14.984,175.158]
 
  [9436,9437,9907,9998,9999,10883,10912,10913,10949,10950,10984,10985,11015,11090,11091,11118,11119,11124,
 
  11125,11373,11432,11433,11468,11469,11489,11490,11575,11630,11631,11668,11669,11681,11682,11699]
 
 
 
* mc_node = [23.63,100.758]
 
  [2949,2968,2969,3093,3094,3271,3272,6304, 9434, 9435, 9596, 9905, 9996,9997, 11117,11430,11431,11487,11488]
 
 
 
* mc_node = [23.63,259.265]
 
  [2977,2992,3007,3008,3231,3243,3373,3599,3600,3615,3633,3634,3676,3677,3706,3707,4067,4086,6875,6894,7097,
 
  7098,7099,7199,7231,7254,7255,7256,7275,10914,10915,10986,10987,11016,11017,11092,11093,11470,11471,11560,
 
  11561,11562,11603,11604,11670,11671,11683,11700,11701,11738,11739,11763]
 
 
 
* mc_node = [32.059,102.217]
 
  [2925,2966,2967,3090,3268,3269,3270,6016,6045,6072,6073,6302,9903,9904,11428,11429,11486]
 
 
 
* mc_node=[32.059,248.099]
 
  [2959,3009,3010,3169,3232,3233,3244,3245,3601,3635,3636,3708,4068,4069,4087,4088,6895,6896,7100,7101,7136,7137,
 
  7200,7201,7232,7233,7234,7276,7277,7278,7301,7302,10916,10917,10918,10988,10989,11018,11019,11094,11095,11472,
 
  11473,11563,11605,11606,11673,11674,11684,11685,11702,11703,11740,11741,11742,11764,11765,11766,11923]
 
 
 
* mc_node = [43.197,87.604]
 
  [2923,2924,2965,3088,3089,3266,3267,6043,6044,6071,6279,6301,6070,9274,11427]
 
 
 
* mc_node = [43.197,262.712]
 
  [2919,2961,3011,3012,3143,3170,3171,3234,3382,3383,3384,3637,3638,3639,3711,3925,4007,4008,4031,4032,4070,4071,
 
  4089,4090,6897,7102,7138,7139,7168,7169,7235,7236,7237,7238,7279,7280,7303,7304,7465,10919,11510,11511,11675,
 
  11676,11743,11744,11767,11768,11828,11829,11890,11891,11926]
 
 
 
* mc_node = [52.374,110.312]
 
  [2759,3264,3265,2922,3087,6013,6014,6041,6042,6069]
 
 
 
* mc_node = [52.374,301.217]
 
  [3235,3236,3385,3712,3961,3980,4033,4034,4091,4125,4126,4073,4092,6898,7105,7106,7140,7170,7171,7281,7305,11512,11513,
 
  11708,11709,11745,11746,11769,11770,11830,11831,11892,11893,11927,11928]
 
 
 
* mc_node = [60.528,99.126]
 
  [6012]
 
 
 
* mc_node = [60.528,251.19]
 
  [3237,4074,7172]
 
 
 
* Fixed cuts (before August 2021):
 
"intensity": [80, Infinity],
 
"width": [0, Infinity],
 
"length": [0, Infinity],
 
"r": [0, 1],
 
"wl": [0.1, 1],
 
"leakage_intensity_width_2": [0, 1.0],
 
"event_type": [32, 32]
 
 
 
* Fixed cuts (after August 2021):
 
"intensity": [50, Infinity],
 
"width": [0, Infinity],
 
"length": [0, Infinity],
 
"r": [0, 1],
 
"wl": [0.1, 1],
 
"leakage_intensity_width_2": [0, 1.0],
 
"event_type": [32, 32]
 
 
 
* Global gammaness and alpha cuts optimized on MC gamma efficiency of 70%, point-like source assumption
 
 
 
gh-efficiency 0.7
 
alpha-containment 0.7
 
  
 
== DL3 pulsar data ==
 
== DL3 pulsar data ==
 
:- Add phases using PINT-pulsar tools for LST-1 (https://github.com/alvmas/PulsarTimingAnalysis)
 
:- Add phases using PINT-pulsar tools for LST-1 (https://github.com/alvmas/PulsarTimingAnalysis)
:- Ephemeris file: /home/alvaro.mas/software/Pulsar_analysis/data/all.gro
+
:- Ephemeris file: /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021+3651/J2021+3651_58685_60244_cube.par
:- General path for standard MC efficiency: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL3_pulsar/eff_0.7/
+
:- DL3 pulsar data: /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL3_pulsar
:- General path for different MC efficiency: /fefs/aswg/workspace/alvaro.mas/data/real/Crab/v0.9.9_final/DL3_pulsar/eff_{eff}/
 
 
   
 
   
 
==High-level analysis==
 
==High-level analysis==
Line 178: Line 109:
 
* Performed with gammapy-v0.20.1
 
* Performed with gammapy-v0.20.1
  
  energy_axis = MapAxis.from_energy_bounds(
+
  energy_geometry: #Geometry on true energy and reco energy for gammapy. True energy should be larger
     0.01, 10, nbin=40, per_decade=False, unit="TeV", name="energy"
+
  real:
)
+
     emin: 0.003
energy_axis_true = MapAxis.from_energy_bounds(
+
    emax: 1
     0.05, 100, nbin=100, per_decade=False, unit="TeV", name="energy_true"
+
    units: 'TeV'
)
+
    nbinning: 40
 +
  reco:
 +
    emin: 0.01
 +
     emax: 0.5
 +
    units: 'TeV'
 +
    nbinning: 20
  
 
  spectral_points_binning  
 
  spectral_points_binning  
Line 193: Line 129:
 
* Phase Regions:
 
* Phase Regions:
  
   Bkg: [0.52,0.87]
+
   Bkg: [0.73,1]
   P1: [0,0.026,0.983,1]
+
   P1: [0.105,0.13]
   P2: [0.377,0.422]
+
   P2: [0.57,0.615]
   P1+P2: [0,0.026,0.377,0.422, 0.983,1]
+
   P1+P2: [0.105,0.13,0.57,0.615]
   P3: [0.08,0.24]
+
   P3: None
  
 
* Spectral fitting of stacked LST dataset
 
* Spectral fitting of stacked LST dataset
Line 211: Line 147:
  
 
* Phaseogram with all data
 
* Phaseogram with all data
 +
[[File:phaseograma_all_zenit.jpg|1000px]]
  
[[File:phaseogram_all_0.7.png|1000px]]
+
* Phaseogram with zd<20
 
+
[[File:phaseograme_20_zd.jpg|1000px]]
* Phaseogram with zd<35
 
 
 
[[File:phaseogram_low50.png|1000px]]
 
  
* Phaseogram with zd>35
+
* Phaseogram in different energy bins (without zd cut):
[[File:phaseogram_above50.png|1000px]]
+
[[File:energy_bin_1_all_zenit.jpg|500px]]
 +
[[File:energy_bin_2_all_zenit.jpg|500px]]
  
* Phaseogram in different energy bins:
+
* Phaseogram in different energy bins (zd<20):
[[File:phaseogram_bin1_1.png|500px]]
+
[[File:energy_bin_1_zd_20.jpg|500px]]
[[File:phaseogram_bin2_1.png|500px]]
+
[[File:energy_bin_2_zd_20.jpg|500px]]
[[File:phaseogram_bin3_1.png|500px]]
 
[[File:phaseogram_bin4_1.png|500px]]
 
[[File:phaseogram_bin5_1.png|500px]]
 
[[File:phaseogram_bin6_1.png|500px]]
 
[[File:phaseogram_bin7_1.png|500px]]
 
  
 
* Evolution of the signal in time (without zd cut):
 
* Evolution of the signal in time (without zd cut):
 +
[[File:time_vs_significance_all_zenit.jpg|1000px]]
  
[[File:time_evolution_lst.png|1000px]]
+
* Evolution of the signal in time (zd<20):
* Fitting results
+
[[File:time_vs_significace_zd_20.jpg|1000px]]
 
 
* P1/P2 differential ratio (with Fermi-LAT). Until 200 GeV due to large uncertainties
 
[[File:p1p2_differential_2.png|500px]]
 
 
 
* P1/P2 integral ratio (with Fermi-LAT).
 
[[File:p1p2_ratio_integral_2.png|500px]]
 
 
 
=== LST-1 only fit and SED (zd<50) ===
 
 
 
*P1
 
[[File:SED_P1_1.png]]
 
[[File:LST_fit_only_P1_fine_bin_fermi.png]]
 
[[File:LST_fit_only_P1_fine_wide_fermi.png]]
 
 
 
[[File:fitting_sed_p1.png|800px]]
 
 
 
 
 
*P2
 
[[File:SED_p2_1.png]]
 
[[File:LST_fit_only_P2_fine_bin_fermi.png]]
 
[[File:LST_fit_only_P2_wide_bin_fermi.png]]
 
  
[[File:fitting_sed_p2.png|800px]]
 
  
 
=== P1 LST-1 + Fermi-LAT joint fit ===
 
=== P1 LST-1 + Fermi-LAT joint fit ===
  
** Using a SubExponentialCutOffPL model:
+
** Using a PowerLaw model (without zd cut):
 
+
[[File:fit_fermi_all_zd.png|1000px]]
[[File:P1_exponential_model_3.png|500px]]
 
[[File:Exponential_result_fit_P1.png|500px]]
 
 
 
'''Total stat: -2logL = 32.56'''
 
 
 
** Using a SmoothBrokenPowerLaw model
 
[[File:SmoothBrokenPL_P1_2.png|500px]]
 
[[File:SmoothBPL_results_fit_P1.png|500px]]
 
 
 
'''Total stat: -2logL = 24.44'''
 
 
 
*P1 for E>10 GeV:
 
 
 
** Using a LogParabola model
 
[[File:P1_logParabolaModel_2.png|500px]]
 
[[File:LogParabola_results_fit_P1.png|500px]]
 
 
 
'''Total stat: -2logL = 7.34'''
 
 
 
** Using a PowerLaw model
 
[[File:P1_PLmodel_2.png|500px]]
 
[[File:PL_results_fit_P1.png|500px]]
 
 
 
'''Total stat: -2logL = 7.83'''
 
 
 
=== P2 LST-1 + Fermi-LAT joint fit ===
 
 
 
** Using a SubExponentialCutOffPL model:
 
 
 
[[File:P2_Exponential_model.png|500px]]
 
[[File:Exponential_results_fit_P2.png|500px]]
 
 
 
'''Total stat: -2logL = 51.40'''
 
 
 
** Using a SmoothBrokenPowerLaw model
 
[[File:SmoothBrokenPL_P2.png|500px]]
 
[[File:SmoothBPL_results_fit_P2.png|500px]]
 
 
 
'''Total stat: -2logL = 34.74'''
 
 
 
 
 
*P2 for E>10 GeV:
 
 
 
** Using a LogParabola model
 
[[File:P2_logParabolaModel.png|500px]]
 
[[File:LogParabola_results_fit_P2.png|500px]]
 
 
 
'''Total stat: -2logL = 17.85'''
 
 
 
** Using a PowerLaw model
 
[[File:P2_PLmodel.png|500px]]
 
[[File:PL_results_fit_P2.png|500px]]
 
 
 
'''Total stat: -2logL = 19.35'''
 
 
 
=== LST-1+ Fermi-LAT energy calibration ===
 
 
 
*P1 in left and P2 in right (Using SmoothBrokenPowerLaw model in all energy range)
 
 
 
[[File:energy_factor_fermi_LST_P1_3.png|500px]]
 
[[File:energy_factor_LST_fermi_P2_3.png|500px]]
 
 
 
*P1 in left and P2 in right (Using PowerLaw model at E>10 GeV)
 
 
 
[[File:energy_factor_fermi_LST_P1_PL_3.png|500px]]
 
[[File:energy_factor_LST_fermi_P2_PL_3.png|500px]]
 
 
 
'''In all the cases the energy factor that minimize the chi2 value is below 5%'''
 
 
 
=== Lightcurve ===
 
[[File:lightcurve.png|1000px]]
 
[[File:lightcurve_together.png|1000px]]
 
 
 
=== Systematics tests ===
 
 
 
==== Phaseogram and SED for different samples ====
 
 
 
 
 
 
 
*Phaseogram Before August 2021
 
[[File:histo_preAug.png|600px]]
 
 
 
 
 
'''sign(P1)/sqrt(Tobs) = 0.856 h^(-1/2)'''
 
 
 
'''sign(P2)/sqrt(Tobs) = 1.059 h^(-1/2)'''
 
 
 
 
 
*Phaseogram After August 2021
 
[[File:histo_posAug.png|600px]]
 
 
 
'''sign(P1)/sqrt(Tobs) = 1.063 h^(-1/2)'''
 
 
 
'''sign(P2)/sqrt(Tobs) = 1.183 h^(-1/2)'''
 
 
 
*SED for P1:
 
[[File:spectra_P1_bothsamples.png|600px]]
 
 
 
'''Difference in spectral index of ~10% and flux 60% (lacking some statistics for first sample)'''
 
 
 
 
 
*SED for P2:
 
[[File:spectra_P2_bothsamples.png|600px]]
 
 
 
'''Difference in spectral index of ~2% and flux of 15%'''
 
 
 
==== Phaseogram and SED with different efficiencies ====
 
[[File:phaseogram_different_efficiencies.png|1000px]]
 
 
 
* P1 SED:
 
[[File:SED_different_efficiencies.png|1000px]]
 
'''Relative maximum error of 3.07% in spectral index and 35.4% in flux.'''
 
 
 
* P1 SED:
 
[[File:SED_different_efficiencies_P2.png|1000px]]
 
'''Relative maximum error of 7.36% in spectral index and 29.2% in flux.'''
 
 
 
==== Effect on SED due to shift on MC true energy =====
 
 
 
** P1:
 
[[File:P1_energy_factor_SED_2.png|1000px]]
 
 
 
'''Relative maximum error of 1.01% in spectral index and 24.9% in flux.'''
 
 
 
**P2:
 
 
 
[[File:energy_factor_LST_P2.png|1000px]]
 
 
 
'''Relative maximum error of 0.45% in spectral index and 16.4% in flux.'''
 
 
 
==== Final uncertainties ====
 
 
 
**P1:
 
[[File:relative_error_index_P1.png|300px]]
 
[[File:relative_error_flux_P1.png|300px]]
 
[[File:total_uncertainty_P1.png|500px]]
 
  
**P2:
+
** Using a PowerLaw model (zd<20):
[[File:relative_error_index_P2.png|300px]]
+
[[File:fit_fermi_zd_20.jpg|1000px]]
[[File:relative_error_flux_P2.png|300px]]
 
[[File:total_uncertainty_P2.png|500px]]
 

Latest revision as of 10:40, 10 July 2024

General information[edit]

  • Name of the source: Dragonfly Pulsar (PSRJ2021+3651)
  • Brief description of the source:
- Object type : Pulsar
- RA, Dec in deg (ICRS): 305.27252, 36.85126

People involved in this analysis (LST-1 and new Fermi-LAT analysis)[edit]

  • Cristian Pozo González
  • Alvaro Mas-Aguilar
  • Ruben Lopez-Coto
  • Daniel Morcuende

Run selection[edit]

  • Run selection with the use of the notebook from Abelardo Moralejo [1]
  • Atmospheric transmission extracted from ELOG
  • In total 48 runs selected, obstime 13.51 hours
  • Summary of selection cuts:
- Zenith < 70 deg and Zenith < 20 deg
- elapsed_time > 2 min
- transmission_cut > 0.60
- pedestal charge std dev < 1.9 p.e.
- Cosmic rate > 3000 ev/s
- Cosmic rate( > 10 p.e.) > 25-15 ev/s (depends on zd)
- Cosmic rate( > 30 p.e.) > 3-4 ev/s (depends on zd)
  • Number of runs with zenith < 70 deg (% is w.r.t. those in Sky region & zenith range):
 + In the requested Sky region and range of dates:	 132
 + zenith in requested range:				 132
 + NSB in requested range:				 131 (99.2%)
 + FF and pedestal interleaved events are present:	 130 (98.5%)
 + Stable pointing:					 129 (97.7%)
 + dR/dI fit P-value ok:				 128 (97.0%)
 + dR/dI LS periodogram ok:				 127 (96.2%)
 + dR/dI index ok:					 121 (91.7%)
 + dR/dI rate ok:					 48 (36.4%)
 + intensity threshold ok:				 48 (36.4%)

Note: about 64% of all *dark-night* observations within ZD<80 deg fulfill all quality cuts. (in the stable, good-quality period 2022-11-18 - 2023-02-14, 92% of *dark-night* observations within ZD<80 deg do).

  • List of selected runs (Zenith < 70 deg):
1  :  2022-06-28  :  [8948 8949 8950 8951 8952 8953 8954 8955 8956 8957 8958 8959]
2  :  2022-06-29  :  [8980 8982 8983 8985 8986 8987]
3  :  2023-05-16  :  [13062 13063 13064 13066 13067]
4  :  2023-05-18  :  [13096 13097 13098 13099]
5  :  2023-06-22  :  [13519 13520 13521 13522]
6  :  2023-06-25  :  [13588 13589 13590 13591]
7  :  2023-10-05  :  [14910]
8  :  2023-10-06  :  [14918 14919 14920 14921 14922 14923 14924]
9  :  2023-11-13  :  [15489 15490 15491 15495 15497]
  • Number of runs with zenith < 20 deg (% is w.r.t. those in Sky region & zenith range):
 + In the requested Sky region and range of dates:	 132
 + zenith in requested range:				 77
 + NSB in requested range:				 76 (98.7%)
 + FF and pedestal interleaved events are present:	 75 (97.4%)
 + Stable pointing:					 74 (96.1%)
 + dR/dI fit P-value ok:				 73 (94.8%)
 + dR/dI LS periodogram ok:				 73 (94.8%)
 + dR/dI index ok:					 72 (93.5%)
 + dR/dI rate ok:					 31 (40.3%)
 + intensity threshold ok:				 31 (40.3%)

Note: about 64% of all *dark-night* observations within ZD<80 deg fulfill all quality cuts. (in the stable, good-quality period 2022-11-18 - 2023-02-14, 92% of *dark-night* observations within ZD<80 deg do).

  • List of selected runs (Zenith < 20 deg):
1  :  2022-06-28  :  [8951 8952 8953 8954 8955 8956 8957 8958 8959]
2  :  2022-06-29  :  [8980 8982 8983 8985 8986 8987]
3  :  2023-05-16  :  [13066 13067]
4  :  2023-05-18  :  [13098 13099]
5  :  2023-06-22  :  [13520 13521 13522]
6  :  2023-06-25  :  [13588 13589 13590 13591]
7  :  2023-10-05  :  [14910]
8  :  2023-10-06  :  [14918 14919 14920 14921]

DL1 data[edit]

- DL1a files produced by LSTOSA (lstchain v0.9.9)
- lstchain v0.9 tailcut8-4
- /fefs/aswg/data/real/DL1/{date}/v0.9/tailcut84/

DL2 data[edit]

- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL2

IRFs[edit]

- Point-like
- IRFs for each MC node and for each intensity cut
- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/IRF

DL3 data[edit]

- /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL3

DL3 pulsar data[edit]

- Add phases using PINT-pulsar tools for LST-1 (https://github.com/alvmas/PulsarTimingAnalysis)
- Ephemeris file: /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021+3651/J2021+3651_58685_60244_cube.par
- DL3 pulsar data: /fefs/aswg/workspace/cristian.pozo/data/PSRJ2021_3651/DL3_pulsar

High-level analysis[edit]

1D Spectral analysis[edit]

  • Performed with gammapy-v0.20.1
energy_geometry: #Geometry on true energy and reco energy for gammapy. True energy should be larger
 real:
   emin: 0.003
   emax: 1
   units: 'TeV'
   nbinning: 40
 reco:
   emin: 0.01
   emax: 0.5
   units: 'TeV'
   nbinning: 20
spectral_points_binning 
   e_min, e_max = 0.02, 0.7
   nbins = 8 
   logspace
   sqrt_ts>1.5
  • Phase Regions:
 Bkg: [0.73,1]
 P1: [0.105,0.13]
 P2: [0.57,0.615]
 P1+P2: [0.105,0.13,0.57,0.615]
 P3: None
  • Spectral fitting of stacked LST dataset
  • Performed for point-like assumption
  • Stacked analysis
  • LST-1 data alone: Power-law spectral model
  • Fermi + LST-1 data: Power-Law Spectral Model, ExponentialCutOff, LogParabola


Results[edit]

Phaseogram[edit]

  • Phaseogram with all data

Phaseograma all zenit.jpg

  • Phaseogram with zd<20

Phaseograme 20 zd.jpg

  • Phaseogram in different energy bins (without zd cut):

Energy bin 1 all zenit.jpg Energy bin 2 all zenit.jpg

  • Phaseogram in different energy bins (zd<20):

Energy bin 1 zd 20.jpg Energy bin 2 zd 20.jpg

  • Evolution of the signal in time (without zd cut):

Time vs significance all zenit.jpg

  • Evolution of the signal in time (zd<20):

Time vs significace zd 20.jpg


P1 LST-1 + Fermi-LAT joint fit[edit]

    • Using a PowerLaw model (without zd cut):

Fit fermi all zd.png

    • Using a PowerLaw model (zd<20):

Fit fermi zd 20.jpg