PKS1424 LST1 analysis Cycle I DanielMorcuende
Contents
- 1 Analysis of LST-1 PKS 1424+240 data from observation cycle I
Analysis of LST-1 PKS 1424+240 data from observation cycle I[edit]
General information[edit]
- Name of the source: PKS 1424+240
- Brief description of the source:
- Object type : blazar, HBL object
- Detected in VHE, TeVCat: http://tevcat.uchicago.edu/?mode=1;id=184
- Redshift (z) : uncertain, current limits place it in the range z = 0.24 - 1.19 (see several works references in TeVCat)
- Other relevant information: potential neutrino emitter found by IceCube (https://doi.org/10.1126/science.abg3395)
- RA, Dec in deg (ICRS): 216.75163247, 23.80001042
- Analysis by Name (Institute - email)
- Daniel Morcuende (IAA-CSIC, dmorcuende@iaa.es)
- José Manuel Gavilán (IAA-CSIC)
Data-taking information[edit]
Cycle I observations 2023-01-23 to 2023-07-17
- Dates of data-taking:
- Date (time of observation h)
- ZD range (deg):
- Date (time of observation h)
Dataset after good quality selection[edit]
File:Pks1424 LST1 quality selection cycle I dmorcuende.png
Number of runs (% is w.r.t. those in Sky region & zenith range):
In the requested Sky region and range of dates: 35
+ zenith in requested range: 35
+ NSB in requested range: 32 (91.4%)
+ FF and pedestal interleaved events are present: 32 (91.4%)
+ Stable pointing: 32 (91.4%)
+ dR/dI fit P-value ok: 32 (91.4%)
+ dR/dI LS periodogram ok: 30 (85.7%)
+ dR/dI index ok: 29 (82.9%)
+ dR/dI rate ok: 20 (57.1%)
+ intensity threshold ok: 20 (57.1%)
Total observation time: 5.47 h (20 runs)
Total number of runs: 20 (in 5 nights)
Total observation time: 5.47 hours
'2023-01-23': [11805, 11806, 11807, 11808],
'2023-01-27': [11933, 11934, 11935, 11936, 11937, 11938],
'2023-04-18': [12747, 12748, 12749, 12750],
'2023-05-12': [12957, 12958, 12959, 12960, 12961],
'2024-03-10': [17029],
File:Pk1424 LST1 rel light yield cycle I dmorcuende.png
Analysis information[edit]
- lstchain v0.10
- source-independent analysis
- Gammapy v1.1
Monte Carlo information[edit]
Closest declination line towards La Palma latitude (28.8 deg)
20240131_allsky_v0.10.5_all_dec_base/?
DL1 data[edit]
Standard DL1b files produced by LSTOSA (lstchain v0.10, tailcut 8-4 with cleaning based on pedestal RMS, dynamic cleaning)
/fefs/aswg/data/real/DL1/YYYYMMDD/v0.10/tailcut84/dl1_LST-1.Run?????.h5
Random forest[edit]
Models:
/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/?
DL2[edit]
Files:
/fefs/aswg/workspace/daniel.morcuende/data/real/DL2/PKS1424
IRF and DL3 data selection[edit]
DL3 files:
/fefs/aswg/workspace/daniel.morcuende/data/real/DL3/NGC1068/20240131_allsky_v0.10.5_all_dec_base/dec_931/gh_eff_0.7_th_cont_0.7
- IRF linear interpolation
- intensity > 50 p.e.
- gammaness energy-dependent cuts with 70% efficiency
- theta energy-dependent cuts 70% efficiency
High-level analysis[edit]
- Science Tool: Gammapy 1.1
- point-like IRF, 1D analysis
Analysis Results[edit]
Theta2 plot[edit]
Theta2 plots (Effective time: 5.185 h; Elapsed time: 5.463 h)
No detection
File:Pks1424 LST1 theta2 LE cycle I dmorcuende.png
Energy range: 0.0 - 0.2 TeV Excess: -534.0; Off: 177283 Gamma rate: -1.7 events / minute Off rate: 569.9 events / minute alpha (backg normalization): 1.00 Li & Ma Significance: 0.0 standard deviations
File:Pks1424 LST1 theta2 HE cycle I dmorcuende.png
Energy range: 0.2 - 1000000.0 TeV Excess: 9.3; Off: 380 Gamma rate: 0.0 events / minute Off rate: 1.2 events / minute alpha (backg normalization): 0.33 Li & Ma Significance: 0.7 standard deviations
Significance map[edit]
Excess map[edit]
Spectral results[edit]
- Fermi-LAT 3FHL and 3FGL SED shown.
- Spectral model plotted corresponds to the Fermi-LAT data, extended to VHE.
File:Pks1424 LST1 SED ULs cycle I dmorcuende.png
