| Canonical Name: | S3 0218+35 |
| TeVCat Name: | TeV J0218+359 |
| Other Names: | B2 0218+35
QSO B0218+357 |
| Source Type: | FSRQ |
| R.A.: | 02 21 05.5 (hh mm ss) |
| Dec.: | +35 56 14 (dd mm ss) |
| Gal Long: | 142.60 (deg) |
| Gal Lat: | -23.49 (deg) |
| Distance: | z=0.954 |
| Flux: | 0.3 (Crab Units) |
| Energy Threshold: | 100 GeV |
| Spectral Index: | 3.8 |
| Extended: | No |
| Discovery Date: | 2014-07 |
| Discovered By: | MAGIC |
| TeVCat SubCat: | Default Catalog |
Source Notes:
This source was moved from the "Newly Announced" to the "Default" catalogue on 160915.
Its class was updated from blazar to FSRQ on 160916.
This detection was announced in an
ATel 6349.
More details can be found in the presentation of
D. Mazin from
the
2014 Fermi Symposium and in the paper of
J. Sitarek
presented at the 34th ICRC.
From
ATel 6349:
- "S3 0218+357 is a gravitationally lensed blazar located at the
redshift of 0.944+/-0.002 (
Cohen et al., 2003)"
Source Position:
The source position was taken from
NED.
R.A. (J2000): 02 21 05.5
Dec. (J2000): +35 56 14
Distance
The redshift for this source is yet to be confirmed.
The redshift was updated from z=0.944 to z=0.954 on 170119
From
Paiano et al. (2016):
"We clearly detect the strong broad emission line at 5480 Ang (EW=35
Ang, FWHM=4700 km/s) that if attributed to Mg II 2800 Ang, yields the
redshift of z = 0.954. We stress that in our spectrum we do not detect
the claimed emissions HBeta and [OIII] attributed to the blazar by
Cohen et al. (2003). We note again that these features are placed in a
spectral region that is heavily contaminated by strong H2O atmospheric
absorption. Therefore we conclude that the redshift of S3 0218+357 is
still tentative since it is based on only one line. If confirmed, this
source is the most distant blazar detected at frequencies >100 GeV"
From
Cohen et al. (2003):
- redshift of z = 0.944 +/- 0.002
Spectral Information:
From
MAGIC Collaboration (2016):
- Spectral index: 3.80 +/- 0.61(stat) +/- 0.20(syst)
Seen by: MAGIC
-
Measurement of size of gamma-ray source in blazar B0218+357 from microlensing at 100 GeV energy
Vovk, Ie. and Neronov, A., arXiv e-prints parXiv:2306.09857 (2023) [LINK]
-
Multiwavelength study of the gravitationally lensed blazar QSO B0218+357 between 2016 and 2020
MAGIC Collaboration et al., arXiv e-prints parXiv:2111.12926 (2021) [LINK]
-
On the redshift of TeV BL Lac objects
Paiano, S. et al., ArXiv e-prints p (2017) [LINK]
-
Variability of GeV gamma-ray emission in QSO B0218+357 due to microlensing on intermediate size structures
Sitarek, J. and Bednarek, W., ArXiv e-prints p (2016) [LINK]
-
Latest MAGIC discoveries pushing redshift boundaries in VHE Astrophysics
Manganaro, M. et al., Journal of Physics Conference Series 718 p052022 (2016) [LINK]
-
Detection of very high energy gamma-ray emission from the gravitationally-lensed blazar QSO B0218+357 with the MAGIC telescopes
MAGIC Collaboration et al., ArXiv e-prints p (2016) [LINK]
-
Fermi-LAT Detection of a Hard Spectrum Flare from the Gravitationally Lensed Blazar B0218+357
Buson, S. et al., ArXiv e-prints p (2015) [LINK]
-
Microlensing constraint on the size of the gamma-ray emission region in blazar B0218+357
Vovk, I. and Neronov, A., ArXiv e-prints p (2015) [LINK]
-
Detection of very-high-energy gamma rays from the most distant and gravitationally lensed blazar QSO B0218+357 using the MAGIC telescope system
Sitarek, J. et al., ArXiv e-prints p (2015) [LINK]
-
The Structure of the Strongly Lensed Gamma-ray Source B2 0218+35
Barnacka, A. et al., ArXiv e-prints p (2015) [LINK]
-
Discovery of Very High Energy Gamma-Ray Emission From Gravitationally Lensed Blazar S3 0218+357 With the MAGIC Telescopes
Mirzoyan, R., The Astronomer's Telegram 6349 p1 (2014) [LINK]
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