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Observation Date (UT) Observation Lat

Canonical Name:Boomerang
TeVCat Name:TeV J2228+611
Other Names:G106.6+2.9
0FGL J2229.0+6114
MGRO J2228+61
HAWC J2227+610
Source Type:PWN
R.A.:22 28 44 (hh mm ss)
Dec.:+61 10 00 (dd mm ss)
Gal Long: 106.57 (deg)
Gal Lat: 2.91 (deg)
Distance: 0.8 kpc
Flux:0.44 (Crab Units)
Energy Threshold:35000 GeV
Spectral Index:
Size (X):0.00 (deg)
Size (Y):0.00 (deg)
Discovery Date:2009-04
Discovered By: Milagro
TeVCat SubCat:Default Catalog

Source Notes:

Source position and its uncertainty:
From Abdo et al. (2009):
- R.A. (J2000): 22h 28m 44s
- Dec. (J2000): 61d 10m
... statistical position error of 0.165 deg

Source Extent:
From Abdo et al. (2009):
- "Milagro identifies this source as clearly not a point source,
... with a long extension to the south."
- the extent measured is not given

Source Association:
From Cao et al. (2021):
- Boomerang Nebula may be associated with LHAASO J2226+6057
From Acero et al. (2013):
- This LAT emission from this source below 10 GeV is likely from a
From Acciari et al. (2009):
- This source could be associated with the VERITAS source G106.3+2.7
From Abdo et al. (2009):
- report a source associated with 0FGL J2229.0+6114 with a statistical
significance of 6.6sigma.
- This source is extended and is associated with a Fermi pulsar (J2229+6114)
and is therefore postulated to be the PWN of this pulsar

Source Flux:
From Abdo et al. (2009):
- The flux quoted here is based on a comparison of the flux at 35 TeV
of 70.9e-17 /TeV /s /cm2 with that from the Crab (162.6e-17 /TeV /s /cm2)
also quoted at 35 TeV.

Seen by: Milagro, HAWC, VERITAS
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