| Canonical Name: | S5 0716+714 |
| TeVCat Name: | TeV J0721+713 |
| Other Names: | 1H 0717+714 |
| Source Type: | IBL |
| R.A.: | 07 21 53.4 (hh mm ss) |
| Dec.: | +71 20 36 (dd mm ss) |
| Gal Long: | 143.98 (deg) |
| Gal Lat: | 28.02 (deg) |
| Distance: | |
| Flux: | (Crab Units) |
| Energy Threshold: | 0.4 GeV |
| Spectral Index: | 3.45 |
| Extended: | No |
| Discovery Date: | 2008-04 |
| Discovered By: | MAGIC |
| TeVCat SubCat: | Default Catalog |
Source Notes:
Source position and its uncertainty:
- no information is provided
- the position provided by
NED is used:
- R.A. (J2000): 07 21 53.4
- Dec. (J2000): +71 20 36
Distance:
From
Dorigo Jones et al. (2021):
- "Here, we significantly improve the precision of indirect redshift
constraints for blazars based on the edge of the HI-Ly-alpha forest
observed in their UV spectra. We develop a robust technique to
constrain the redshift of a z<0.5 AGN or blazar with a 1 sigma
uncertainty of approx. 0.01 using only the position of its
highest-redshift Ly-alpha absorber with log N_HI/cm^-2 > 12.6."
- "We utilize the archival COS G130M+G160M FUV spectra of S5 0716+714
to identify its highest-redshift Ly-alpha absorption line, which we
confirm with the line identifications of
Danforth et al. (2016).
Based on its max(z_Ly-alpha) at 𝑧 = 0.23146, our inferred redshift constraint
for S5 0716+714 using equation (1) is z_sys = 0.227 - 0.254, which provides
a strong redshift constraint for this blazar. Our improved upper limit for
the redshift of S5 0716+714 suggests that it may indeed be a member of the
galaxy group at z= 0.26 (approx. 99th percentile), especially if we assume blazars
to have a lower average incidence of associated Ly-alpha. However, our redshift
constraint for S5 0716+714 does leave open the possibility that it is located
at even lower redshift, and so further deep galaxy surveys toward this blazar
are necessary to confirm its redshift.
From
MAGIC Collaboration (2018):
- "The simultaneous spectra from MAGIC and Fermi-LAT were used to
estimate the redshift of the source. We apply the method presented in
Prandini et al. (
2010,
2011) based on the assumption that the slope of
the VHE spectrum corrected for EBL absorption should not be harder
than the one measured by Fermi-LAT at lower energies"
- "The empirical formula proposed in
Prandini et al. (2011) applied to
this data gives as most probable value for the redshift
z_rec = 0.31 +/- 0.02stat +/- 0.05sys, where the first error is
related to the statistical errors of Fermi-LAT and MAGIC slopes, while
the second error is the error of the method itself, as estimated in
Prandini et al. (2011)."
From
Danforth et al. (2012):
- "... we set a statistical upper bound of z < 0.322 (95% confidence)
on the blazar. This is the first direct redshift limit for this object
and is consistent with literature estimates of z = 0.31 +/- 0.08 based
on the detection of a host galaxy."
From
Mazin et al. (2009):
- "Due to the very bright nucleus, which outshines the host galaxy,
the redshift of S5 0716+714 is still uncertain"
From
Nilsson et al. (2008):
- "We have acquired a deep i-band image of the BL Lacertae object S5
0716+714 while the target was in an low optical state. Due to the
faintness of the nucleus, we were able to detect the underlying host
galaxy. The host galaxy is measured to have an I-band magnitude of
17.5 +/- 0.5 and an effective radius of (2.7 +/- 0.8) arcsec. Using
the host galaxy as a “standard candle”, we derive z = 0.31 +/- 0.08
(1 sigma error) for the host galaxy of S5 0716+714. This redshift is
consistent with the redshift z = 0.26 determined by spectroscopy for 3
galaxies close to S5 0716+714. The effective radius at z = 0.31 would
be 12 +/- 4 kpc, which is consistent with values obtained for BL Lac
host galaxies. An optical spectrum acquired during the same epoch
shows no identifiable spectral lines."
Flux:
From
MAGIC Collaboration (2018):
- "On 19 January 2015 (MJD 57041), triggered by the high optical state
and by high-energy photons detected by Fermi-LAT, MAGIC started to
observe S5 0716+714. On 23 January 2015 (MJD 57045) the significance
of the signal was found to be 6.4 sigma, and it reached a maximum
value of 13.2 sigma on 26 January (MJD 57048): the flux increased from
(4.1 +/- 1.1) 10e-11 cm-2 s-1 to (8.9 +/- 1.1) 10e-11 cm-2 s-1 above
150 GeV, which is the highest level ever detected in the VHE band for
this source. The next activity of S5 0716+714 in the VHE range was
detected by MAGIC on 13 February (MJD 57066), this time lasting four
days only, up to the 16 February (MJD 57069)."
Spectral Index:
From
MAGIC Collaboration (2018):
- "In the present work the two multi-wavelength periods of
observations that include MAGIC data are indicated as Phase A, from 18
to 27 January 2015 (MJD 57040 to MJD 57050), and Phase B from 12 to 17
February 2015 (MJD 57065 to MJD 57070)."
- During Phase A (MJD 57040-57050): observed spectral index: 4.08 +/- 0.22 (stat) +/- 0.15 (syst)
- During Phase A (MJD 57040-57050): intrinsic spectral index: 2.73 +/- 0.28 (stat) +/- 0.15 (syst)
- During Phase B (MJD 57065-57070): observed spectral index: 4.64 +/- 0.49 (stat) +/- 0.15 (syst)
- During Phase B (): observed spectral index: 3.65 +/- 0.53 (stat) +/- 0.15 (syst)
From
Anderhub et al. (2009):
- 3.45 +/- 0.54(stat) +/- 0.2(syst)
Classification:
Initially, this source was classified as an LBL in TeVCat. It has
been updated (121113) to an IBL based on its classification in
the
Fermi
2nd AGN Catalog (Ackermann et al. 2012)
Seen by: MAGIC
-
Long-term multiband optical variability of S5 0716+714 blazar
Gorbachev, Mark A. et al., arXiv e-prints parXiv:2201.09294 (2022) [LINK]
-
A 31.3 day transient quasi-periodic oscillation in gamma-ray emission from the blazar S5 0716+714
Chen, Junping et al., arXiv e-prints parXiv:2209.07002 (2022) [LINK]
-
Evidence of Periodic Variability in Gamma-ray Emitting Blazars with Fermi-LAT
Peńil, P. et al., arXiv e-prints parXiv:2211.01894 (2022) [LINK]
-
Blazars SED in Conical Plasma Flow : a Monte Carlo study
Kumar, Nagendra and Kushwaha, Pankaj, arXiv e-prints parXiv:2106.06263 (2021) [LINK]
-
Constraining Evolution of Magnetic Field Strength in Dissipation Region of Two BL Lac Objects
Fan, Xu-Liang et al., arXiv e-prints parXiv:2109.11229 (2021) [LINK]
-
Periods of the Long-Term Variability of the Blazar 0716+714 and Their Inter-Correlations in a Helical Jet Model
Butuzova, Marina S., arXiv e-prints parXiv:2110.10222 (2021) [LINK]
-
Radio and gamma-ray activity in the jet of the blazar S5 0716$+$714
Kim, Dae-Won et al., arXiv e-prints parXiv:2111.03006 (2021) [LINK]
-
Improving blazar redshift constraints with the edge of the Ly-alpha forest: 1ES 1553+113 and implications for observations of the WHIM
Dorigo Jones, J. et al., arXiv e-prints parXiv:2111.06927 (2021) [LINK]
-
X-ray timing and spectral variability properties of blazars S5 0716+714, OJ 287, Mrk 501, and RBS 2070
Mohorian, Maksym et al., MNRAS p (2021) [LINK]
-
Study of a 43 day optical quasi-periodic oscillation for BL Lac S5 0716+714
Lu, Lin et al., arXiv e-prints parXiv:2112.09883 (2021) [LINK]
-
Multicolor Optical Monitoring of the Blazar S5 0716+714 from 2017 to 2019
Xiong, Dingrong et al., arXiv e-prints parXiv:2002.08705 (2020) [LINK]
-
Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron. III. Blazar S5 0716+71 at microarcsecond resolution
Kravchenko, Evgeniya V. et al., arXiv e-prints parXiv:2003.08776 (2020) [LINK]
-
Diversity of gamma-ray and Radio Variabilities of Bright Blazars and Implications for gamma-ray Emission Location
Zhang, Hai-Ming et al., arXiv e-prints parXiv:2003.11175 (2020) [LINK]
-
Intraday variability of the polarization vector in AGN S5 0716+714
Shablovinskaya, E. and Afanasiev, V., arXiv e-prints parXiv:2003.12822 (2020) [LINK]
-
A geometrical interpretation for the properties of multiband optical variability of the blazar S5 0716+714
Butuzova, Marina S., arXiv e-prints parXiv:2005.08161 (2020) [LINK]
-
Short-term X-ray Variability during Different Activity Phases of Blazars S5 0716+714 and PKS 2155-304
Kushwaha, Pankaj and Pal, Main, arXiv e-prints parXiv:2009.06443 (2020) [LINK]
-
The dual nature of blazar fast variability. Space and ground observations of S5 0716+714
Raiteri, C.M. et al., arXiv e-prints parXiv:2011.06493 (2020) [LINK]
-
Spectroscopic Monitoring of Blazar S5 0716+714: Brightness-dependent Spectral Behavior
Feng, Hai-Cheng et al., ApJ 902 p42 (2020) [LINK]
-
The jet of S5 0716+71 at micro-as scales with RadioAstron
Kravchenko, E.V. et al., arXiv e-prints p (2019) [LINK]
-
Search for Intra-day Optical Variability in Gamma-ray-loud Blazars S5 0716+714 and 3C 273
Liu, H.T. et al., arXiv e-prints parXiv:1906.06568 (2019) [LINK]
-
Statistical analysis of micro-variability properties of the blazar S5 0716+714
Xu, Jingran et al., arXiv e-prints parXiv:1909.03129 (2019) [LINK]
-
Nature of gamma-ray variability in blazars
Bhatta, Gopal and Dhital, Niraj, arXiv e-prints parXiv:1911.08198 (2019) [LINK]
-
Quasi-simultaneous Spectroscopic and Multi-band Photometric Observations of Blazar S5 0716+714 during 2018-2019
Feng, Hai-Cheng. et al., arXiv e-prints parXiv:1911.08667 (2019) [LINK]
-
The Radio and Gamma-ray Variability Analysis of S5 0716+714
Li, H.Z. et al., ArXiv e-prints p (2018) [LINK]
-
Optical variability in IBL S5 0716+714 during the 2013-2015 outburst
Kaur, N. et al., ArXiv e-prints p (2018) [LINK]
-
Intra-day optical multi-band quasi-simultaneous observation of BL Lacertae object S5 0716+714 from 2013 to 2016
Zhang, X. et al., ArXiv e-prints p (2018) [LINK]
-
Multi-wavelength characterization of the blazar S5 0716+714 during an unprecedented outburst phase
MAGIC Collaboration et al., ArXiv e-prints p (2018) [LINK]
-
X-ray spectral variability of blazars using principal component analysis
Gallant, D. et al., ArXiv e-prints p (2018) [LINK]
-
Constraints on Lorentz Invariance and CPT Violation using Optical Photometry and Polarimetry of Active Galaxies BL Lacertae and S5 B0716+714
Friedman, A.S. et al., ArXiv e-prints p (2018) [LINK]
-
Multiwavelength intraday variability: what do the studies tell us about blazar jets?
Bhatta, G., ArXiv e-prints p (2018) [LINK]
-
Gamma-ray quasi-periodicities of blazars. A cautious approach
Covino, S. et al., ArXiv e-prints p (2018) [LINK]
-
The intraday variations of polarization vector direction in radio source S5 0716+714
Shablovinskaya, E.S. and Afanasiev, V.L., ArXiv e-prints p (2018) [LINK]
-
Long-term optical monitoring of TeV emitting blazars. I. Data analysis
Nilsson, K. et al., A&A 620 pA185 (2018) [LINK]
-
Gamma-ray and Optical Oscillations of PKS 0716+71, MRK 421, and BL Lac
Sandrinelli, A. et al., ArXiv e-prints p (2017) [LINK]
-
On the redshift of TeV BL Lac objects
Paiano, S. et al., ArXiv e-prints p (2017) [LINK]
-
Simultaneous dual-frequency radio observations of S5 0716+714: A search for intraday variability with the Korean VLBI Network
Lee, J.W. et al., ArXiv e-prints p (2017) [LINK]
-
Radio and optical intra-day variability observations of five blazars
Liu, X. et al., ArXiv e-prints p (2017) [LINK]
-
Core shift effect in blazars
Agarwal, A. et al., ArXiv e-prints p (2017) [LINK]
-
Interferometric Monitoring of Gamma-ray Bright AGNs: S5 0716+714
Lee, J.W. et al., ArXiv e-prints p (2017) [LINK]
-
Optical monitoring of BL Lac object S5 0716+714 and FSRQ 3C273 from 2000 to 2014
Yuan, Y.-H. et al., ArXiv e-prints p (2017) [LINK]
-
Multi-color optical monitoring of the BL Lacertae object S5 0716+714 during the 2012 outburst
Hong, S. et al., ArXiv e-prints p (2017) [LINK]
-
A search for cyclical sources of gamma-ray emission on the period range from days to years in the Fermi-LAT sky
Prokhorov, D.A. and Moraghan, A., ArXiv e-prints p (2017) [LINK]
-
Signature of Inverse Compton emission from blazars
Gaur, H. et al., ArXiv e-prints p (2017) [LINK]
-
Optical quasi-periodic oscillation of the BL Lacertae object S5 0716+714 during the faint state
Hong, S. et al., ArXiv e-prints p (2017) [LINK]
-
MAGIC detection of an unprecedented activity from S5 0716+714 at very-high-energy gamma rays
Mirzoyan, R., The Astronomer's Telegram 11100 p1 (2017) [LINK]
-
Hard X-ray properties of NuSTAR blazars
Bhatta, G. et al., ArXiv e-prints p (2017) [LINK]
-
Location and origin of gamma-rays in blazars
Rani, B. et al., ArXiv e-prints p (2016) [LINK]
-
First hard X-ray observations of the blazar S5 0716+714 with NuSTAR during a multiwavelength campaign
Wierzcholska, A. and Siejkowski, H., MNRAS 458 p2350-2359 (2016) [LINK]
-
Multifrequency Photo-polarimetric WEBT Observation Campaign on the Blazar S5 0716+714: Source Microvariability and Search for Characteristic Timescales
Bhatta, G. et al., ArXiv e-prints p (2016) [LINK]
-
Connection between the observed properties of blazar S5 0716+71 in the helical jet model
Butuzova, M.S., ArXiv e-prints p (2016) [LINK]
-
Multiwavelength Picture of the Blazar S5 0716+714 during Its Brightest Outburst
Manganaro, M. et al., Galaxies 4 p69 (2016) [LINK]
-
Investigating the Innermost Jet Structures of Blazar S5 0716+714 Using Uniquely Dense Intra-day Photo-polarimetric Observations
Bhatta, G., Galaxies 4 p56 (2016) [LINK]
-
MAGIC detects Very High Energy gamma-rays from S5 0716+714
Mirzoyan, R., The Astronomer's Telegram 6999 p1 (2015) [LINK]
-
The Extreme Gamma-Ray Blazar S5 0716+714: Jet Conditions from Radio-Band Variability and Radiative Transfer Modeling
Aller, M.F. et al., ArXiv e-prints p (2015) [LINK]
-
Perplexing correlations between Gamma-ray emission and parsec-scale jet orientation variations in the BL Lac object S5 0716+714
Rani, B. et al., ArXiv e-prints p (2015) [LINK]
-
Connection between inner jet kinematics and broadband flux variability in the BL Lac object S5 0716+714
Rani, B. et al., ArXiv e-prints p (2015) [LINK]
-
Multi-wavelength study of flaring activity in BL Lac object S5 0716+714 during 2015 outburst
Ch et al., ArXiv e-prints p (2015) [LINK]
-
Discovery of a Highly Polarized Optical Microflare in the Blazar S5 0716+714 During 2014 WEBT Campaign
Bhatta, G. et al., ArXiv e-prints p (2015) [LINK]
-
Multi-band optical variability of the Blazar S5 0716+714 in outburst state during 2014-2015
Agarwal, A. et al., ArXiv e-prints p (2015) [LINK]
-
Simultaneous optical monitoring of BL Lacertae object S5 0716+714 with high temporal resolution
Man, Z. et al., ArXiv e-prints p (2015) [LINK]
-
Swift/XRT view of S5 0716+714 during a flare
Wierzcholska, A. and Siejkowski, H., MNRAS 452 pL11-L15 (2015) [LINK]
-
Multi-wavelength variability properties of Fermi blazar S5 0716+714
Liao, N.H. et al., ArXiv e-prints p (2014) [LINK]
-
Jet outflow and gamma-ray emission correlations in S5 0716+714
Rani, B. et al., ArXiv e-prints p (2014) [LINK]
-
S5 0716+714 : GeV variability study
Rani, B. et al., ArXiv e-prints p (2013) [LINK]
-
The Outburst of the Blazar S5 0716+71 in 2011 October: Shock in a Helical Jet
Larionov, V.M. et al., ArXiv e-prints p (2013) [LINK]
-
A Fast Flare and Direct Redshift Constraint in Far-ultraviolet Spectra of the Blazar S5 0716+714
Danforth, C.W. et al., ApJ 764 p57 (2013) [LINK]
-
The 72-h WEBT microvariability observation of blazar S5 0716 + 714 in 2009
Bhatta, G. et al., A&A 558 pA92 (2013) [LINK]
-
Power Spectral Distribution of the BL Lac Object S5 0716+714
Mocanu, G.R. and Marcu, A., ArXiv e-prints p (2012) [LINK]
-
Seven-Year Multi-Color Optical Monitoring of BL Lacertae Object S5 0716+714
Dai, Y. et al., ArXiv e-prints p (2012) [LINK]
-
Multiwavelength intraday variability of the BL Lacertae S5 0716+714
Gupta, A.C. et al., MNRAS 425 p1357-1370 (2012) [LINK]
-
Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004. II.
Large-scale jet kinematics and the comparison of the different methods
of VLBI data imaging as applied to kinematic studies of AGN
Rastorgueva, E.A. et al., A&A 529 pA2+ (2011) [LINK]
-
Rapid Optical Variability in Blazar S5 0716+71 During 2010 March
Chandra, S. et al., ApJ 731 p118-+ (2011) [LINK]
-
Rapid optical variability of TeV blazars
Gopal-Krishna et al., ArXiv e-prints p (2011) [LINK]
-
Blazar S5 0716+714 is in a flaring state in optical and gamma
Blinov, D. et al., The Astronomer's Telegram 3700 p1-+ (2011) [LINK]
-
Power Spectral Distribution of the BL Lacertae Object S5 0716+714
Mocanu, G.-R. and Marcu, A., ArXiv e-prints p (2011) [LINK]
-
Connection Between Optical and VHE Gamma-ray Emission in Blazar Jets
Reinthal, R. et al., ArXiv e-prints p (2011) [LINK]
-
Quasi-periodic Oscillations of 15 Minutes in the Optical Light Curve of the BL Lac S5 0716+714
Rani, B. et al., ApJ 719 pL153-L157 (2010) [LINK]
-
Evolution of the Synchrotron and Inverse Compton Emissions of the Low-energy-peaked BL Lac Object S5 0716+714
Zhang, Y.H., ApJ 713 p180-193 (2010) [LINK]
-
Variability of the Spectral Energy Distribution of the Blazar S5 0716+714
Rani, B. et al., ArXiv e-prints p (2010) [LINK]
-
The Optical Microvariability and Spectral Changes of the BL Lacertae Object S5 0716+714
Poon, H. et al., ApJS 185 p511-525 (2009) [LINK]
-
Discovery of very High Energy Gamma-Rays from the Blazar S5 0716+714
Anderhub, H. et al., ApJ 704 pL129-L133 (2009) [LINK]
-
Implications of Bulk Velocity Structures in AGN Jets
Yang, J. et al., PASJ 61 p1153- (2009) [LINK]
-
A Quasi-Periodic Oscillation of 30 Minutes in the X-ray Light Curve of the BL Lac S5 0716+714
Gupta, A.C. et al., ArXiv e-prints p (2009) [LINK]
-
Discovery of Very High Energy gamma-rays from the blazar S5 0716+714
Mazin, D. et al., ArXiv e-prints p (2009) [LINK]
-
Powerful High-energy Emission of the Remarkable BL Lac Object S5 0716+714
Vittorini, V. et al., ApJ 706 p1433-1437 (2009) [LINK]
-
Non-radial motion in the TeV blazar S5 0716+714. The pc-scale kinematics of a BL Lacertae object
Britzen, S. et al., A&A 508 p1205-1215 (2009) [LINK]
-
MAGIC discovers VHE gamma ray emission from the blazar S50716+714
Teshima, M. and The MAGIC Collaboration, The Astronomer's Telegram 1500 p1-+ (2008) [LINK]
Want a reference added? Send a bibtex entry to
the TeVCat Team
