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Observation Date (UT) Observation Lat

Canonical Name:LHAASO J1843-0338
TeVCat Name:TeV J1843-036
Other Names:HESS J1843-033
HESS J1844-030
2HWC J1844-032
SNR G28.6-0.1
Source Type:UNID
R.A.:18 43 00 (hh mm ss)
Dec.:-03 39 00 (dd mm ss)
Gal Long: 28.72 (deg)
Gal Lat: 0.21 (deg)
Distance:
Flux:0.73 (Crab Units)
Energy Threshold:100000 GeV
Spectral Index:
Extended:Yes
Size (X):0.00 (deg)
Size (Y):0.00 (deg)
Discovery Date:2021-05
Discovered By: LHAASO
TeVCat SubCat:Default Catalog

Source Notes:
Details of the source detection:

From Cao et al. (2021):
- "At 100 TeV, the angular and energy resolutions are about 15–20 arcmin
and better than 20%, respectively, allowing adequate spectroscopic and
morphological studies."
- "The statistical significance of the detection above 100 TeV is calculated
using a 0.3deg extension template"
- "Crab Units (CU), flux of the Crab Nebula at 100 TeV; 1 CU = 6.1 x 10-17 photons TeV-1 cm-2 s-1)"
- Significance above 100 TeV: 8.5 sigma
- E_max (PeV): 0.26 + 0.16 -0.10
- Differential photon flux at 100 TeV (CU): 0.73 +/- 0.17
- On-source events/Off-source events: 30/4.3
- Exposure (hr): 1715.4

Source Position:

From Cao et al. (2021):
- R.A. (J2000): 280.75 = 18h 43m
- Dec. (J2000): -3.65 = -03d 39m

Possible Origin:

From Cao et al. (2021):
- This list contains sources potentially at the origin of the LHAASO source, together with their class, their distance, age and luminosity
- SNR G28.6-0.1, Supernova Remnant, Distance: 9.6 +/- 0.3 kpc, Age: <2 kyr

Potential TeV Counterparts:

From Cao et al. (2021):
- This list contains "Nearby teraelectronvolt sources within 1deg of the centre of the LHAASO source"
- HESS J1843-033
- HESS J1844-030
- 2HWC J1844-032

Pevatron:

From Mitchell (2021):
- this source is included in a list of Galactic sources currently known
to produce gamma-ray emission above 100 TeV.



Seen by: LHAASO
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