| Canonical Name: | VER J2016+371 |
| TeVCat Name: | TeV J2016+372 |
| Other Names: | CTB 87 |
| Source Type: | UNID |
| R.A.: | 20 16 02 (hh mm ss) |
| Dec.: | +37 11 52 (dd mm ss) |
| Gal Long: | 74.94 (deg) |
| Gal Lat: | 1.14 (deg) |
| Distance: | |
| Flux: | 0.01 (Crab Units) |
| Energy Threshold: | 1000 GeV |
| Spectral Index: | 2.3 |
| Extended: | No |
| Discovery Date: | 2011-08 |
| Discovered By: | VERITAS |
| TeVCat SubCat: | Default Catalog |
Source Notes:
Source Name:
On 150304, the source name was updated to VER J2016+371
(
Aliu et
al. 2014).
Previously it had been called VER J2016+372
(
Aliu
et al. 2011)
Source Position:
On 150304, the position was updated to that given in
Aliu et al. (2014):
- R.A. (J2000): 20 16 02 +/- 3s (stat)
- Dec. (J2000): +37 11 52 +/- 40" (stat)
Previously: The R.A. and Dec. are taken directly from the source's name and so
have errors of 30s and 30", respectively:
- R.A. (J2000): 20 16 00 +/- 30s
- Dec. (J2000): +37 12 00 +/- 30"
Source Association:
From
Cao et al. (2021):
- VER J2016+371 may be associated with
LHAASO J2018+3651
From
Gotthelf et al. (2016):
- "We present NuSTAR hard X-ray observations of Sh 2–104, a compact
HII region containing sev- eral young massive stellar clusters
(YMSCs). We have detected distinct hard X-ray sources coincident with
localized VERITAS TeV emission recently resolved from the giant
gamma-ray complex MGRO J2019+37 in the Cygnus region."
From
Aliu et al. (2014):
- this source is positionally coincident with part of the emission from
MGRO J2019+37.
- "MGRO J2019+37 is resolved into two VERITAS sources." (VER J2016+371 and
VER J2019+368)
- "The most likely counterpart of the new source VER J2016+371 is the
PWN in the SNR CTB 87. The co-location, the VHE extent, and the
X-ray/VHE luminosity ratio argue in favor of this."
From
Acero et al. (2013):
- in the LAT energy range, this source is point-like with a relatively soft spectrum
- it lacks a pulsar energetic enough to power its emission
From
Aliu et al. (2011):
- the location of VER J2016+372 is compatible with the position of CTB 87
From Aliu et al. (2012) Contribution to
Gamma 2012:
- suggests that this source could be associated with a PWN
Spectral Information:
From
Aliu et al. (2014):
- Spectral index: 2.3 +/- 0.3 (stat) +/- 0.2 (syst)
Seen by: VERITAS, ARGO-YBJ
-
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 p33-36 (2021) [LINK]
-
Deciphering the Nature of the Pulsar Wind Nebula CTB 87 with XMM-Newton
Guest, Benson et al., arXiv e-prints parXiv:1911.11829 (2019) [LINK]
-
A Very High Energy Gamma-Ray Survey towards the Cygnus Region of the Galaxy
The VERITAS Collaboration et al., ArXiv e-prints p (2018) [LINK]
-
Hard X-ray Emission from Sh2-104: A NuSTAR search for Gamma-ray Counterparts
Gotthelf, E.V. et al., ArXiv e-prints p (2016) [LINK]
-
Implications of the pulsar wind nebula scenario for a TeV gamma-ray source VER J2016+371
Saha, L., ArXiv e-prints p (2016) [LINK]
-
The VERITAS Survey of the Cygnus Region of the Galaxy
Popkow, A. and for the VERITAS Collaboration, ArXiv e-prints p (2015) [LINK]
-
Spatially Resolving the Very High Energy Emission from MGRO J2019+37 with VERITAS
Aliu, E. et al., ApJ 788 p78 (2014) [LINK]
-
X-ray Observations of the Supernova Remnant CTB 87 (G74.9+1.2): An Evolved Pulsar Wind Nebula
Matheson, H. et al., ArXiv e-prints p (2013) [LINK]
-
Constraints on the Galactic Population of TEV Pulsar Wind Nebulae Using Fermi Large Area Telescope Observations
Acero, F. et al., ArXiv e-prints p (2013) [LINK]
-
The counterpart/s of IGR J20159+3713/SWIFT J2015.9+3715: dissecting a complex region with emission from keV to TeV
Bassani, L. et al., ArXiv e-prints p (2013) [LINK]
-
Observation of TeV gamma rays from the Cygnus region with the ARGO-YBJ experiment
Bartoli, B. et al., ArXiv e-prints p (2012) [LINK]
-
Observations of SNR CTA 1 and the Cyg OB1 region with VERITAS
Aliu, E., ArXiv e-prints p (2011) [LINK]
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