Back to Main Page
Observation Date (UT) Observation Lat

Canonical Name:LHA 120-N 157B
TeVCat Name:TeV J0537-691
Other Names:HESS J0537-691
PSR J0537-6910
Source Type:PWN
R.A.:05 37 44 (hh mm ss)
Dec.:-69 09 57 (dd mm ss)
Gal Long: 279.55 (deg)
Gal Lat: -31.75 (deg)
Distance: 50 kpc
Flux:0.02 (Crab Units)
Energy Threshold:600 GeV
Spectral Index:2.8
Extended:Yes
Size (X):0.01 (deg)
Size (Y):0.01 (deg)
Discovery Date:2012-01
Discovered By: H.E.S.S.
TeVCat SubCat:Default Catalog

Source Notes:

Source Location:
From HESS Collaboration (2012):
- R.A. (J2000): 05h 37m 44s +/- 11"(stat)
- Dec. (J2000): 69d 09' 57" +/- 11"(stat)
- systematic uncertainty of 20" on each axis
From Komin et al. (2012):
- R.A. (J2000): 05h 37m 44s +/- 2s(stat)
- Dec. (J2000): 69d 09' 57" +/- 11"(stat)

Spectral Information:
From H.E.S.S. Collaboration (2015):
- Spectral index: 2.8 +/- 0.1(stat) +/ 0.3(syst)
From HESS Collaboration (2012):
- Spectral index: 2.8 +/- 0.2(stat) +/- 0.3(syst)
From Komin et al. (2012):
- Spectral index: 2.7 +/- 0.2(stat) +/- 0.3(syst)

Source Extent:
From H.E.S.S. Collaboration (2015):
- "The diameter of N 157B of 100" is of the order of the
H.E.S.S. angular resolution."
- the radius has been entered as 0.014deg (=50")

Source Association:
From Ferdman et al. (2017):
- "Rotating with a spin period of 16 ms, PSR J0537-6910 is the fastest
spinning and most energetic young pulsar known. It also displays the
most glitch activity of any known pulsar. We have found 42 glitches
over the data span, corresponding to a glitch rate of 3.2 yr-1, with
an overall glitch activity rate of 8.8 e10-7 yr-1."
From HESS Collaboration (2012):
- This is the first detection of an extragalactic PWN at these
energies. It is associated with PSR J0537-6910, which is the pulsar
with the highest known spin-down luminosity.
From Komin et al. (2012):
- This source is in the LMC and is likely associated with PSR J0537-6910.

Distance:
From H.E.S.S. Collaboration (2015):
- the distance to the Large Magellenic Cloud, where this PWN
lies, is approximately 50 kpc


Seen by: H.E.S.S.
Want a reference added? Send a bibtex entry to the TeVCat Team