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The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission. / Raiteri, C. M.; Stamerra, A.; Villata, M.; Larionov, V. M.; Acosta-Pulido, J. A.; Arévalo, M. J.; Arkharov, A. A.; Bachev, R.; Benítez, E.; Bozhilov, V. V.; Borman, G. A.; Buemi, C. S.; Calcidese, P.; Carnerero, M. I.; Carosati, D.; Chigladze, R. A.; Damljanovic, G.; Di Paola, A.; Doroshenko, V. T.; Efimova, N. V.; Ehgamberdiev, Sh A.; Giroletti, M.; González-Morales, P. A.; Grinon-Marin, A. B.; Grishina, T. S.; Hiriart, D.; Ibryamov, S.; Klimanov, S. A.; Kopatskaya, E. N.; Kurtanidze, O. M.; Kurtanidze, S. O.; Kurtenkov, A. A.; Larionova, L. V.; Larionova, E. G.; Lázaro, C.; Lähteenmäki, A.; Leto, P.; Markovic, G.; Mirzaqulov, D. O.; Mokrushina, A. A.; Morozova, D. A.; Mújica, R.; Nazarov, S. V.; Nikolashvili, M. G.; Ohlert, J. M.; Ovcharov, E. P.; Paiano, S.; Pastor Yabar, A.; Prandini, E.; Ramakrishnan, V.; Sadun, A. C.; Semkov, E.; Sigua, L. A.; Strigachev, A.; Tammi, J.; Tornikoski, M.; Trigilio, C.; Troitskaya, Yu V.; Troitsky, I. S.; Umana, G.; Velasco, S.; Vince, O.

In: Monthly Notices of the Royal Astronomical Society, Vol. 454, No. 1, 21.11.2015, p. 353-367.

Research output: Contribution to journal › Article › peer-review

Harvard

Raiteri, CM, Stamerra, A, Villata, M, Larionov, VM, Acosta-Pulido, JA, Arévalo, MJ, Arkharov, AA, Bachev, R, Benítez, E, Bozhilov, VV, Borman, GA, Buemi, CS, Calcidese, P, Carnerero, MI, Carosati, D, Chigladze, RA, Damljanovic, G, Di Paola, A, Doroshenko, VT, Efimova, NV, Ehgamberdiev, SA, Giroletti, M, González-Morales, PA, Grinon-Marin, AB, Grishina, TS, Hiriart, D, Ibryamov, S, Klimanov, SA, Kopatskaya, EN, Kurtanidze, OM, Kurtanidze, SO, Kurtenkov, AA, Larionova, LV, Larionova, EG, Lázaro, C, Lähteenmäki, A, Leto, P, Markovic, G, Mirzaqulov, DO, Mokrushina, AA, Morozova, DA, Mújica, R, Nazarov, SV, Nikolashvili, MG, Ohlert, JM, Ovcharov, EP, Paiano, S, Pastor Yabar, A, Prandini, E, Ramakrishnan, V, Sadun, AC, Semkov, E, Sigua, LA, Strigachev, A, Tammi, J, Tornikoski, M, Trigilio, C, Troitskaya, YV, Troitsky, IS, Umana, G, Velasco, S & Vince, O 2015, 'The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission', Monthly Notices of the Royal Astronomical Society, vol. 454, no. 1, pp. 353-367. https://doi.org/10.1093/mnras/stv1884, https://doi.org/10.1093/mnras/stv1884

APA

Raiteri, C. M., Stamerra, A., Villata, M., Larionov, V. M., Acosta-Pulido, J. A., Arévalo, M. J., Arkharov, A. A., Bachev, R., Benítez, E., Bozhilov, V. V., Borman, G. A., Buemi, C. S., Calcidese, P., Carnerero, M. I., Carosati, D., Chigladze, R. A., Damljanovic, G., Di Paola, A., Doroshenko, V. T., ... Vince, O. (2015). The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission. Monthly Notices of the Royal Astronomical Society, 454(1), 353-367. https://doi.org/10.1093/mnras/stv1884, https://doi.org/10.1093/mnras/stv1884

Vancouver

Raiteri CM, Stamerra A, Villata M, Larionov VM, Acosta-Pulido JA, Arévalo MJ et al. The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission. Monthly Notices of the Royal Astronomical Society. 2015 Nov 21;454(1):353-367. https://doi.org/10.1093/mnras/stv1884, https://doi.org/10.1093/mnras/stv1884

Author

Raiteri, C. M. ; Stamerra, A. ; Villata, M. ; Larionov, V. M. ; Acosta-Pulido, J. A. ; Arévalo, M. J. ; Arkharov, A. A. ; Bachev, R. ; Benítez, E. ; Bozhilov, V. V. ; Borman, G. A. ; Buemi, C. S. ; Calcidese, P. ; Carnerero, M. I. ; Carosati, D. ; Chigladze, R. A. ; Damljanovic, G. ; Di Paola, A. ; Doroshenko, V. T. ; Efimova, N. V. ; Ehgamberdiev, Sh A. ; Giroletti, M. ; González-Morales, P. A. ; Grinon-Marin, A. B. ; Grishina, T. S. ; Hiriart, D. ; Ibryamov, S. ; Klimanov, S. A. ; Kopatskaya, E. N. ; Kurtanidze, O. M. ; Kurtanidze, S. O. ; Kurtenkov, A. A. ; Larionova, L. V. ; Larionova, E. G. ; Lázaro, C. ; Lähteenmäki, A. ; Leto, P. ; Markovic, G. ; Mirzaqulov, D. O. ; Mokrushina, A. A. ; Morozova, D. A. ; Mújica, R. ; Nazarov, S. V. ; Nikolashvili, M. G. ; Ohlert, J. M. ; Ovcharov, E. P. ; Paiano, S. ; Pastor Yabar, A. ; Prandini, E. ; Ramakrishnan, V. ; Sadun, A. C. ; Semkov, E. ; Sigua, L. A. ; Strigachev, A. ; Tammi, J. ; Tornikoski, M. ; Trigilio, C. ; Troitskaya, Yu V. ; Troitsky, I. S. ; Umana, G. ; Velasco, S. ; Vince, O. / The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission. In: Monthly Notices of the Royal Astronomical Society. 2015 ; Vol. 454, No. 1. pp. 353-367.

BibTeX

@article{d37b725223b1436dbc8489cfd50c59aa,
title = "The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission",
abstract = "A multifrequency campaign on the BL Lac object PG 1553+113 was organized by theWhole Earth Blazar Telescope (WEBT) in 2013 April-August, involving 19 optical, two near-IR, and three radio telescopes. The aim was to study the source behaviour at low energies during and around the high-energy observations by the Major Atmospheric Gamma-ray Imaging Cherenkov telescopes in April-July. We also analyse the UV and X-ray data acquired by the Swift and XMM-Newton satellites in the same period. The WEBT and satellite observations allow us to detail the synchrotron emission bump in the source spectral energy distribution (SED). In the optical, we found a general bluer-when-brighter trend. The X-ray spectrum remained stable during 2013, but a comparison with previous observations suggests that it becomes harder when the X-ray flux increases. The long XMM-Newton exposure reveals a curved X-ray spectrum. In the SED, the XMM-Newton data show a hard near-UV spectrum, while Swift data display a softer shape that is confirmed by previous Hubble Space Telescope/Cosmic Origins Spectrograph and International Ultraviolet Explorer observations. Polynomial fits to the optical-X-ray SED show that the synchrotron peak likely lies in the 4-30 eV energy range, with a general shift towards higher frequencies for increasing X-ray brightness. However, the UV and X-ray spectra do not connect smoothly. Possible interpretations include: (i) orientation effects, (ii) additional absorption, (iii) multiple emission components, and (iv) a peculiar energy distribution of relativistic electrons. We discuss the first possibility in terms of an inhomogeneous helical jet model.",
keywords = "BL Lacertae objects: general, BL Lacertae objects: individual:PG 1553+113, Galaxies: active",
author = "Raiteri, {C. M.} and A. Stamerra and M. Villata and Larionov, {V. M.} and Acosta-Pulido, {J. A.} and Ar{\'e}valo, {M. J.} and Arkharov, {A. A.} and R. Bachev and E. Ben{\'i}tez and Bozhilov, {V. V.} and Borman, {G. A.} and Buemi, {C. S.} and P. Calcidese and Carnerero, {M. I.} and D. Carosati and Chigladze, {R. A.} and G. Damljanovic and {Di Paola}, A. and Doroshenko, {V. T.} and Efimova, {N. V.} and Ehgamberdiev, {Sh A.} and M. Giroletti and Gonz{\'a}lez-Morales, {P. A.} and Grinon-Marin, {A. B.} and Grishina, {T. S.} and D. Hiriart and S. Ibryamov and Klimanov, {S. A.} and Kopatskaya, {E. N.} and Kurtanidze, {O. M.} and Kurtanidze, {S. O.} and Kurtenkov, {A. A.} and Larionova, {L. V.} and Larionova, {E. G.} and C. L{\'a}zaro and A. L{\"a}hteenm{\"a}ki and P. Leto and G. Markovic and Mirzaqulov, {D. O.} and Mokrushina, {A. A.} and Morozova, {D. A.} and R. M{\'u}jica and Nazarov, {S. V.} and Nikolashvili, {M. G.} and Ohlert, {J. M.} and Ovcharov, {E. P.} and S. Paiano and {Pastor Yabar}, A. and E. Prandini and V. Ramakrishnan and Sadun, {A. C.} and E. Semkov and Sigua, {L. A.} and A. Strigachev and J. Tammi and M. Tornikoski and C. Trigilio and Troitskaya, {Yu V.} and Troitsky, {I. S.} and G. Umana and S. Velasco and O. Vince",
note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2015",
month = nov,
day = "21",
doi = "10.1093/mnras/stv1884",
language = "English",
volume = "454",
pages = "353--367",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Wiley-Blackwell",
number = "1",

}

RIS

TY - JOUR

T1 - The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission

AU - Raiteri, C. M.

AU - Stamerra, A.

AU - Villata, M.

AU - Larionov, V. M.

AU - Acosta-Pulido, J. A.

AU - Arévalo, M. J.

AU - Arkharov, A. A.

AU - Bachev, R.

AU - Benítez, E.

AU - Bozhilov, V. V.

AU - Borman, G. A.

AU - Buemi, C. S.

AU - Calcidese, P.

AU - Carnerero, M. I.

AU - Carosati, D.

AU - Chigladze, R. A.

AU - Damljanovic, G.

AU - Di Paola, A.

AU - Doroshenko, V. T.

AU - Efimova, N. V.

AU - Ehgamberdiev, Sh A.

AU - Giroletti, M.

AU - González-Morales, P. A.

AU - Grinon-Marin, A. B.

AU - Grishina, T. S.

AU - Hiriart, D.

AU - Ibryamov, S.

AU - Klimanov, S. A.

AU - Kopatskaya, E. N.

AU - Kurtanidze, O. M.

AU - Kurtanidze, S. O.

AU - Kurtenkov, A. A.

AU - Larionova, L. V.

AU - Larionova, E. G.

AU - Lázaro, C.

AU - Lähteenmäki, A.

AU - Leto, P.

AU - Markovic, G.

AU - Mirzaqulov, D. O.

AU - Mokrushina, A. A.

AU - Morozova, D. A.

AU - Mújica, R.

AU - Nazarov, S. V.

AU - Nikolashvili, M. G.

AU - Ohlert, J. M.

AU - Ovcharov, E. P.

AU - Paiano, S.

AU - Pastor Yabar, A.

AU - Prandini, E.

AU - Ramakrishnan, V.

AU - Sadun, A. C.

AU - Semkov, E.

AU - Sigua, L. A.

AU - Strigachev, A.

AU - Tammi, J.

AU - Tornikoski, M.

AU - Trigilio, C.

AU - Troitskaya, Yu V.

AU - Troitsky, I. S.

AU - Umana, G.

AU - Velasco, S.

AU - Vince, O.

N1 - Publisher Copyright: © 2015 The Authors. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2015/11/21

Y1 - 2015/11/21

N2 - A multifrequency campaign on the BL Lac object PG 1553+113 was organized by theWhole Earth Blazar Telescope (WEBT) in 2013 April-August, involving 19 optical, two near-IR, and three radio telescopes. The aim was to study the source behaviour at low energies during and around the high-energy observations by the Major Atmospheric Gamma-ray Imaging Cherenkov telescopes in April-July. We also analyse the UV and X-ray data acquired by the Swift and XMM-Newton satellites in the same period. The WEBT and satellite observations allow us to detail the synchrotron emission bump in the source spectral energy distribution (SED). In the optical, we found a general bluer-when-brighter trend. The X-ray spectrum remained stable during 2013, but a comparison with previous observations suggests that it becomes harder when the X-ray flux increases. The long XMM-Newton exposure reveals a curved X-ray spectrum. In the SED, the XMM-Newton data show a hard near-UV spectrum, while Swift data display a softer shape that is confirmed by previous Hubble Space Telescope/Cosmic Origins Spectrograph and International Ultraviolet Explorer observations. Polynomial fits to the optical-X-ray SED show that the synchrotron peak likely lies in the 4-30 eV energy range, with a general shift towards higher frequencies for increasing X-ray brightness. However, the UV and X-ray spectra do not connect smoothly. Possible interpretations include: (i) orientation effects, (ii) additional absorption, (iii) multiple emission components, and (iv) a peculiar energy distribution of relativistic electrons. We discuss the first possibility in terms of an inhomogeneous helical jet model.

AB - A multifrequency campaign on the BL Lac object PG 1553+113 was organized by theWhole Earth Blazar Telescope (WEBT) in 2013 April-August, involving 19 optical, two near-IR, and three radio telescopes. The aim was to study the source behaviour at low energies during and around the high-energy observations by the Major Atmospheric Gamma-ray Imaging Cherenkov telescopes in April-July. We also analyse the UV and X-ray data acquired by the Swift and XMM-Newton satellites in the same period. The WEBT and satellite observations allow us to detail the synchrotron emission bump in the source spectral energy distribution (SED). In the optical, we found a general bluer-when-brighter trend. The X-ray spectrum remained stable during 2013, but a comparison with previous observations suggests that it becomes harder when the X-ray flux increases. The long XMM-Newton exposure reveals a curved X-ray spectrum. In the SED, the XMM-Newton data show a hard near-UV spectrum, while Swift data display a softer shape that is confirmed by previous Hubble Space Telescope/Cosmic Origins Spectrograph and International Ultraviolet Explorer observations. Polynomial fits to the optical-X-ray SED show that the synchrotron peak likely lies in the 4-30 eV energy range, with a general shift towards higher frequencies for increasing X-ray brightness. However, the UV and X-ray spectra do not connect smoothly. Possible interpretations include: (i) orientation effects, (ii) additional absorption, (iii) multiple emission components, and (iv) a peculiar energy distribution of relativistic electrons. We discuss the first possibility in terms of an inhomogeneous helical jet model.

KW - BL Lacertae objects: general

KW - BL Lacertae objects: individual:PG 1553+113

KW - Galaxies: active

UR - http://www.scopus.com/inward/record.url?scp=84947222624&partnerID=8YFLogxK

U2 - 10.1093/mnras/stv1884

DO - 10.1093/mnras/stv1884

M3 - Article

VL - 454

SP - 353

EP - 367

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 1

ER -

ID: 5794103