| Canonical Name: | RCW 86 |
| TeVCat Name: | TeV J1442-624 |
| Other Names: | SNR G315.4-2.3
MSH 14-63
HESS J1442-624 |
| Source Type: | Shell |
| R.A.: | 14 43 02.16 (hh mm ss) |
| Dec.: | -62 26 56 (dd mm ss) |
| Gal Long: | 315.44 (deg) |
| Gal Lat: | -2.32 (deg) |
| Distance: | 2.5 kpc |
| Flux: | 0.1 (Crab Units) |
| Energy Threshold: | 480 GeV |
| Spectral Index: | 2.54 |
| Extended: | Yes |
| Size (X): | 0.41 (deg) |
| Size (Y): | 0.41 (deg) |
| Discovery Date: | 2008-10 |
| Discovered By: | H.E.S.S. |
| Green's Catalog: | Link |
| TeVCat SubCat: | Default Catalog |
Source Notes:
| H.E.S.S. Galactic Plane Survey (HGPS, 2018): |
| A selection of information for each of the 78 sources in the HGPS is provided in TeVCat. For full details, visit the HGPS website. |
| Name: | HESS J1442-624 |
| Source Class: | SNR |
| Identified Object: | RCW 86 |
| R.A. (J2000): | 220.72 deg (14 42 53) |
| Dec. (J2000): | -62.43 deg (-62 25 48) |
| Positional uncertainty: | 0.030 deg |
| Spatial Model: | Shell |
| Size: | 0.300 +/- 0.020 deg |
| Spectral Model: | exponentially cutoff power law |
| Integral Flux > 1 TeV: | 2.44e-12 +/- 6.70e-13 cm-2 s-1 |
| Pivot Energy, E0: | 1.00 TeV |
| Diff. Flux at E0: | 4.00e-12 +/- 2.67e-13 cm-2 s-1 TeV-1 |
| Spectral Index: | 1.59 +/- 0.22 |
| Cutoff fit param.: | 0.288 +/- 0.102 TeV-1 |
| HGPS Source Notes: | |
| | |
"This is one of the fourteen EXTERN sources in the HGPS catalog, i.e., VHE sources in the HGPS region previously detected by H.E.S.S. that were not reanalyzed
in the paper:"
- "Given the difficulties with modeling complex source morphologies, we decided to restrict the HGPS analyses to a symmetrical Gaussian model assumption and
exclude all firmly identified shell-like sources and the very complex GC region from reanalysis."
This is one of the 31 firmly-identified objects among the HGPS sources. Two possible associations are listed in Table A.9. "This is a list of astronomical objects,
extracted from catalogs of plausible counterparts, which are are found to be spatially coincident with the HGPS source":
- G315.4−2.3 (SNR)
- 2FHL J1443.2−6221e (2FHL)
Source position and its uncertainty:
150129: The source position was updated to that from
H.E.S.S. Collaboration (2016)
From
H.E.S.S. Collaboration (2016):
The excess gamma rayw were detected within a circular region centred at:
- R.A. (J2000): 14 43 02.16
- Dec. (J2000): -62 26 56
- with a radius of 0.41 deg
150409: The source position was updated from the centre of the
best-fit shell to the centre of the circular region from which the
gamma-ray excess was detected.
From
Aharonian et al. (2009):
Centre of circular region from which gamma-ray excess was detected:
- R.A. (J2000): 14 42 43
- Dec. (J2000): -62 28 48
Centre of best-fit shell:
- R.A. (J2000): 14 42 42.96 +/- 14.1s(stat)
- Dec. (J2000): -62 26 41.6 +/- 66.5"(stat)
Source Classification:
From
H.E.S.S. Collaboration (2016):
"We present the first conclusive evidence that the TeV gamma-ray
emission region is shell-like based on our morphological studies. The
comparison with 2 – 5 keV X-ray data reveals a correlation with the
0.4 – 50 TeV gamma-ray emission."
From
de Naurois (2011):
- the TeV shell morphology has not yet been clearly proved
Source Extent:
From
H.E.S.S. Collaboration (2016):
- radius of circular region from which gamma-ray excess was detected: 0.41 deg
From
Aharonian et al. (2009):
- radius of circular region from which gamma-ray excess was detected: 0.45 deg
- best-fit shell outer radius: 24.43' +/- 1.79'(stat)
- best-fit shell width: 12.39' +/- 4.22'(stat)
Spectral Properties:
From
H.E.S.S. Collaboration (2016):
- the spectrum is best described by a power law with an exponential
cutoff at 3.5 +/- 1.2(stat) +/- 2.2(stat) TeV
- Spectral index: 1.6 +/- 0.2(stat) +/-0.2(syst)
Seen by: H.E.S.S.
-
TeV cosmic ray nuclei acceleration in shell-type supernova remnants with hard gamma-ray spectra
Zeng, Houdun et al., arXiv e-prints parXiv:2102.03465 (2021) [LINK]
-
The Interstellar Medium in young supernova remnants: key to the production of cosmic X-rays and gamma-rays
Sano, Hidetoshi and Fukui, Yasuo, arXiv e-prints parXiv:2106.00708 (2021) [LINK]
-
Electron Acceleration in Middle-age Shell-type Gamma-Ray Supernova Remnants
Zhang, Xiao and Liu, Siming, ApJ 876 p24 (2019) [LINK]
-
Possible Evidence for Cosmic-Ray Acceleration in the Type Ia Supernova Remnant
RCW 86: Spatial Correlation between TeV Gamma rays and Interstellar Atomic Protons
Sano, H. et al., ArXiv e-prints p (2018) [LINK]
-
RCW 86 as the remnant of a calcium-rich core-collapse supernova explosion
Gvaramadze, V.V. et al., ArXiv e-prints p (2017) [LINK]
-
Detailed spectral and morphological analysis of the shell type SNR RCW 86
H.E.S.S. Collaboration et al., ArXiv e-prints p (2016) [LINK]
-
Deep morphological and spectral study of the SNR RCW 86 with Fermi-LAT
The Fermi-LAT Collaboration et al., ArXiv e-prints p (2016) [LINK]
-
A statistical study of Galactic SNR source spectra detected at >GeV energies
Mandelartz, M. and Becker Tjus, J., ArXiv e-prints p (2013) [LINK]
-
Cosmic Ray acceleration and Balmer emission from RCW 86 (G315.4-2.3)
Morlino, G. et al., ArXiv e-prints p (2013) [LINK]
-
RCW 86: A Type Ia Supernova in a Wind-Blown Bubble
Williams, N. et al., ArXiv e-prints p (2011) [LINK]
-
Discovery of Gamma-Ray Emission From the Shell-Type Supernova Remnant RCW 86 With Hess
Aharonian, F. et al., ApJ 692 p1500-1505 (2009) [LINK]
-
Measuring the Cosmic-Ray Acceleration Efficiency of a Supernova Remnant
Helder, E.A. et al., Science 325 p719- (2009) [LINK]
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