| Canonical Name: | LHAASO J1929+1745 |
| TeVCat Name: | TeV J1929+177 |
| Other Names: | 2HWC J1928+177
2HWC J1930+188
HESS J1930+188
VER J1930+188
PSR J1928+1746PSR J1930+1852
SNR G54.1+0.3 |
| Source Type: | UNID |
| R.A.: | 19 29 00 (hh mm ss) |
| Dec.: | +17 45 00 (dd mm ss) |
| Gal Long: | 52.94 (deg) |
| Gal Lat: | 0.04 (deg) |
| Distance: | |
| Flux: | 0.38 (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: 7.4 sigma
- E_max (PeV): 0.71 + 0.16 -0.07
- Differential photon flux at 100 TeV (CU): 0.38 +/- 0.09
- On-source events/Off-source events: 29/5.8
- Exposure (hr): 2282.6
Source Position:
From
Cao et al. (2021):
- R.A. (J2000): 292.25 = 19h 29m
- Dec. (J2000): +17.75 = +17d 45m
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
- PSR J1928+1746, Pulsar, Distance: 4.6 kpc, Age: 82.6 kyr, L_s: 1.6 x10e36
- PSR J1930+1852, Pulsar, Distance: 6.2 kpc, Age: 2.9 kyr, L_s: 1.2 x10e37
- SNR G54.1+0.3, Supernova Renmant, Distance: 6.3 +0.8 -0.7kpc, Age: 1.8-3.3 kyr
Potential TeV Counterparts:
From
Cao et al. (2021):
- This list contains "Nearby teraelectronvolt sources within 1deg of the centre of the LHAASO source"
-
2HWC J1928+177
-
2HWC J1930+188 / HESS J1930+188 / VER J1930+188
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
-
Ultrahigh-energy photons up to 1.4 petaelectronvolts from 12 gamma-ray Galactic sources
Cao, Z., Aharonian, F.A., An, Q., et al., Nature 594, pages 33–36 (2021) [LINK]
-
Strong constraints on Lorentz violation using new gamma-ray observations around PeV
Chen, Liang et al., arXiv e-prints parXiv:2105.07927 (2021) [LINK]
-
Constraints on Hadronic Contribution to LHAASO Sources with Neutrino Observations
Huang, Tian-Qi and Li, Zhuo, arXiv e-prints parXiv:2105.09851 (2021) [LINK]
-
Ultrahigh-energy photons from LHAASO as probes of Lorentz symmetry violations
Li, Chengyi and Ma, Bo-Qiang, arXiv e-prints parXiv:2105.07967 (2021) [LINK]
-
Status of Ground-based and Galactic Gamma-ray Astronomy
Mitchell, A.M.W., arXiv e-prints parXiv:2109.13753 (2021) [LINK]
-
The Hunt for Pevatrons: The Case of Supernova Remnants
Cristofari, P., arXiv e-prints parXiv:2110.07956 (2021) [LINK]
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