| Canonical Name: | MAGIC J1746.4-2853 |
| TeVCat Name: | TeV J1746-288 |
| Other Names: | VER J1746-289
HESS J1746-285
3FGL J166.3-2851c
3EG J1746-2851 |
| Source Type: | UNID |
| R.A.: | 17 46 25 (hh mm ss) |
| Dec.: | -28 52 55 (dd mm ss) |
| Gal Long: | 0.14 (deg) |
| Gal Lat: | -0.12 (deg) |
| Distance: | |
| Flux: | (Crab Units) |
| Energy Threshold: | GeV |
| Spectral Index: | |
| Extended: | No |
| Discovery Date: | 2016-11 |
| Discovered By: | MAGIC |
| TeVCat SubCat: | Newly Announced |
Source Notes:
Source Position:
From
Ahnen et al. (2016):
- R.A. (J2000): 17 46 25
- Dec. (J2000): -28 52 55
- "with an error circle of 0.03 deg"
- "the systematic pointing error of MAGIC is estimated to be 0.02 deg"
Source Association:
This source and
HESS J1746-285 and
VER J1746-289 are positionally very close to each other.
From
Ahnen et al. (2016):
- "The origin of this new source is unclear, though several possible
associations with known objects can be speculated upon. One possible
candidate is the giant molecular cloud (GMC) G0.11-0.11, located very
close to the southern half of the GCA, and between the GCA and Sgr
A*. Gamma-ray emission could either originate from electrons
accelerated in the interaction of G0.11-0.11 with the GCA (such a
scenario was already discussed by
Pohl 1997), or from CR interactions
inside the dense molecular material in the region. Those cosmic rays
could either originate from past active episodes of Sgr A*, several
hundreds or thousands of years ago, or they could have been
accelerated in shocks associated with the numerous supernova
explosions that have been driving the expansion of the GMC
(
Oka et al. 2001). The analysis of the X-ray data suggests,
alternatively, a possible association with a pulsar wind nebula
candidate found within the positional uncertainty of the source
(
Lemiere et al. 2015)."
Seen by: MAGIC
-
Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC
Ahnen, M.L. et al., ArXiv e-prints p (2016) [LINK]
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