B3 1343 + 451 is a distant ( z = 2.534 ) and bright flat-spectrum radio quasar observed in the γ -ray band. The results from the multiwavelength observations of B3 1343 + 451 with Fermi-LAT and Swift are reported. In the γ -ray band, strong flares were observed on 05 December 2011 and on 13 December 2009 when the flux increased up to (8.78 ± 0.83)·10-7 photon cm-2 s-1. The hardest photon index Γ = 1.73 ± 0.24 has been observed on MJD 58089 which is not common for flat-spectrum radio quasars. The analysis of Swift XRT data shows that in 2014 the X-ray flux of the source increased ~2 times as compared to 2009, but in both periods the X-ray emission is characterized by a hard photon index of ΓX-ray = 1.2–1.3. During the γ -ray flares, the shortest flux halving timescale was ~2.34 days, implying the emission had been produced in a very compact region, R ≤ δ ct /(1 + z) = 3.43·1016 cm (when δ = 20 ). The spectral energy distribution of B3 1343 + 451 is modeled during the quiescent and flaring periods assuming a compact emitting region outside the BLR. It is found that the flares can be explained by only changing the bulk Lorentz factor of the emitting region without significant modification of the emitting electron parameters and luminosity of the jet.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Change history
12 January 2023
A Correction to this paper has been published: https://doi.org/10.1007/s10511-023-09763-5
References
C. M. Urry, P. Padovani, Publ. Astron. Soc. Pacif., 107, 803, 1995.
G. Ghisellini, Radiative Processes in High Energy Astrophysics (Berlin: Springer), 2013.
L. Maraschi, G. Ghisellini, and A. Celotti, Astrophys. J., 397, L5, 1992.
S. Bloom and A. Marscher, Astrophys. J., 461, 657, 1996.
G. Ghisellini, L. Maraschi, and A. Treves, Astron. Astrophys., 146, 204, 1985.
M. Sikora, M. Begelman, and M. Rees, Astrophys. J., 421, 153, 1994.
M. B3azejowski, M. Sikora, R. Moderski et al., Astrophys. J., 545, 107, 2000.
A. Mucke and R. Protheroe, Astroparticle Physics, 15, 121, 2001.
K. Mannheim, Astron. Astrophys., 269, 67, 1993.
A. Mucke, R. Protheroe, R. Engel et al., Astroparticle Physics, 18, 593, 2003.
M. Aartsen, M. Ackermann, and J. Adams, Science, 361, 147, 2018.
P. Padovani, P. Giommi, E. Resconi et al., Mon. Not. Roy. Astron. Soc., 480, 192, 2018.
S. Ansoldi, L. A. Antonelli, C. Arcaro et al., Astrophys. J., 863, L10, 2018.
M. Cerruti, A. Zech, C. Boisson et al., Mon. Not. Roy. Astron. Soc., 483, L12, 2019.
N. Sahakyan, Astrophys. J., 866, 109, 2018.
N. Sahakyan, Astron. Astrophys., 622, A144, 2019.
A. Brown, Mon. Not. Roy. Astron. Soc., 431, 824, 2013.
M. Ackermann, R. Anantua, K. Asano et al., Astrophys. J. Lett., 824, L20, 2016.
V. Baghmanyan, S. Gasparyan, and N. Sahakyan, Astrophys. J., 848, 111, 2017.
N. Sahakyan, V. Baghmanyan, and D. Zargaryan, Astron. Astrophys., 614, A6, 2018.
R. Buehler, The Astronomer's Telegram, No. 2217, 2009.
O. Roopesh, M. Dutka, and E. Torresi, The Astronomer's Telegram, No. 3793, 2011.
W. B. Atwood, A. A. Abdo, M. Ackermann et al., Astrophys. J., 697, 1071, 2009.
Fermi-LAT collaboration, arXiv e-prints, arXiv:1902. 10045, 2019.
E. Massaro, M. Perri, P. Giommi et al., Astron. Astrophys., 413, 489, 2004.
A. Abdo, M. Ackermann, M. Ajello et al., Astrophys. J., 710, 810, 2010.
A. Abdo, M. Ackermann, M. Ajello et al., Astrophys. J., 721, 1425, 2010.
S. Gasparyan, N. Sahakyan, V. Baghmanyan et al., Astrophys. J., 863, 114, 2018.
J. G. Kirk, F. Riege, and A. Mastichiadis, Astron. Astrophys., 333, 452, 1998.
A. Abdo, M. Ackermann, M. Ajello et al., Astrophys. J., 699, 31, 2009.
W. Cash, Astrophys. J., 228, 939, 1979.
T. Poole, A. Breeveld, M. Page et al., Mon. Not. Roy. Astron. Soc., 383, 627, 2008.
N. Sahakyan, D. Zargaryan, and V. Baghmanyan, Astron. Astrophys., 574, A88, 2015.
D. Zargaryan, S. Gasparyan, V. Baghmanyan et al., Astron. Astrophys., 608, A37, 2017.
A. Abdo, M. Ackermann, M. Ajello et al., Astrophys. J., 719, 1433, 2010.
N. Sahakyan and S. Gasparyan, Mon. Not. Roy. Astron. Soc., 470, 2861, 2017.
G. Ghisellini and F. Tavecchio, Mon. Not. Roy. Astron. Soc., 448, 1060, 2015.
E. Summerlin and M. Baring, Astrophys. J., 745, 63, 2012.
D. Ellison, F. Jones, and S. Reynolds, Astrophys. J., 360, 702, 1990.
G. Ghisellini, L. Maraschi, and F. Tavecchio, Mon. Not. Roy. Astron. Soc., 396, L105, 2009.
E. Massaro, A. Tramacere, M. Perri et al., Astron. Astrophys., 448, 861, 2006.
A. Tramacere, P. Giommi, M. Perri et al., Astron. Astrophys., 501, 879, 2009.
A. Tramacere, E. Massaro, and A. Taylor, Astrophys. J., 739, 66, 2011.
A. Paggi, A. Cavaliere, V. Vittorini et al., Astrophys. J., 736, 128, 2011.
L. Pacciani, F. Tavecchio, I. Donnarumma et al., Astrophys. J., 790, 45, 2014.
Author information
Authors and Affiliations
Corresponding author
Additional information
Published in Astrofizika, Vol. 63, No. 3, pp. 375-390 (August 2020).
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Sahakyan, N., Harutyunyan, G., Israelyan, D. et al. Exploring the Origin of Multiwavelength Emission from High-Redshift Blazar B3 1343 + 451. Astrophysics 63, 334–348 (2020). https://doi.org/10.1007/s10511-020-09638-z
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10511-020-09638-z