Prominent outburst of the blazar CTA 102 in 2012

V. M. Larionov; D. A. Blinov; S. G. Jorstad; A. P. Marscher; M. Villata; C. M. Raiteri; I. Agudo; P. S. Smith; D. A. Morozova; I. S. Troitsky; D. P. Clemens

doi:10.1051/epjconf/20136104019

Prominent outburst of the blazar CTA 102 in 2012

V. M. Larionov, D. A. Blinov, S. G. Jorstad, A. P. Marscher, M. Villata, C. M. Raiteri, I. Agudo, P. S. Smith, D. A. Morozova, I. S. Troitsky, D. P. Clemens

Steward Observatory

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

After a few years of quiescence, the blazar CTA 102 underwent a large outburst in the fall of 2012. The flare has been tracked from γ-rays to near-infrared, including Fermi and Swift data as well as polarimetric data from several observatories. An intensive GASP-WEBT collaboration campaign in optical and NIR bands, with the addition of previously unpublished archival data, allows comparison of this outburst with the previous activity period of this blazar in the early 2000s. We find remarkable similarity between the optical and γ-ray behavior of CTA 102 during the outburst, without any time lag between the two light curves, indicating co-spatiality of the optical and γ-ray emission regions. A strong harder-when-brighter spectral dependence is seen both in γ-rays and optical. The polarimetric behavior of CTA 102 during the outburst conforms with a shock-in-jet interpretation.

Original language	English (US)
Article number	04019
Journal	EPJ Web of Conferences
Volume	61
DOIs	https://doi.org/10.1051/epjconf/20136104019
State	Published - 2013
Event	International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields - Granada, Spain Duration: Jun 10 2013 → Jun 14 2013

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General Physics and Astronomy

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10.1051/epjconf/20136104019

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title = "Prominent outburst of the blazar CTA 102 in 2012",

abstract = "After a few years of quiescence, the blazar CTA 102 underwent a large outburst in the fall of 2012. The flare has been tracked from γ-rays to near-infrared, including Fermi and Swift data as well as polarimetric data from several observatories. An intensive GASP-WEBT collaboration campaign in optical and NIR bands, with the addition of previously unpublished archival data, allows comparison of this outburst with the previous activity period of this blazar in the early 2000s. We find remarkable similarity between the optical and γ-ray behavior of CTA 102 during the outburst, without any time lag between the two light curves, indicating co-spatiality of the optical and γ-ray emission regions. A strong harder-when-brighter spectral dependence is seen both in γ-rays and optical. The polarimetric behavior of CTA 102 during the outburst conforms with a shock-in-jet interpretation.",

author = "Larionov, {V. M.} and Blinov, {D. A.} and Jorstad, {S. G.} and Marscher, {A. P.} and M. Villata and Raiteri, {C. M.} and I. Agudo and Smith, {P. S.} and Morozova, {D. A.} and Troitsky, {I. S.} and Clemens, {D. P.}",

year = "2013",

doi = "10.1051/epjconf/20136104019",

language = "English (US)",

volume = "61",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "EDP Sciences",

note = "International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields ; Conference date: 10-06-2013 Through 14-06-2013",

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TY - JOUR

T1 - Prominent outburst of the blazar CTA 102 in 2012

AU - Larionov, V. M.

AU - Blinov, D. A.

AU - Jorstad, S. G.

AU - Marscher, A. P.

AU - Villata, M.

AU - Raiteri, C. M.

AU - Agudo, I.

AU - Smith, P. S.

AU - Morozova, D. A.

AU - Troitsky, I. S.

AU - Clemens, D. P.

PY - 2013

Y1 - 2013

N2 - After a few years of quiescence, the blazar CTA 102 underwent a large outburst in the fall of 2012. The flare has been tracked from γ-rays to near-infrared, including Fermi and Swift data as well as polarimetric data from several observatories. An intensive GASP-WEBT collaboration campaign in optical and NIR bands, with the addition of previously unpublished archival data, allows comparison of this outburst with the previous activity period of this blazar in the early 2000s. We find remarkable similarity between the optical and γ-ray behavior of CTA 102 during the outburst, without any time lag between the two light curves, indicating co-spatiality of the optical and γ-ray emission regions. A strong harder-when-brighter spectral dependence is seen both in γ-rays and optical. The polarimetric behavior of CTA 102 during the outburst conforms with a shock-in-jet interpretation.

AB - After a few years of quiescence, the blazar CTA 102 underwent a large outburst in the fall of 2012. The flare has been tracked from γ-rays to near-infrared, including Fermi and Swift data as well as polarimetric data from several observatories. An intensive GASP-WEBT collaboration campaign in optical and NIR bands, with the addition of previously unpublished archival data, allows comparison of this outburst with the previous activity period of this blazar in the early 2000s. We find remarkable similarity between the optical and γ-ray behavior of CTA 102 during the outburst, without any time lag between the two light curves, indicating co-spatiality of the optical and γ-ray emission regions. A strong harder-when-brighter spectral dependence is seen both in γ-rays and optical. The polarimetric behavior of CTA 102 during the outburst conforms with a shock-in-jet interpretation.

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U2 - 10.1051/epjconf/20136104019

DO - 10.1051/epjconf/20136104019

M3 - Conference article

AN - SCOPUS:84893260186

SN - 2101-6275

VL - 61

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 04019

T2 - International Symposium on the Innermost Regions of Relativistic Jets and Their Magnetic Fields

Y2 - 10 June 2013 through 14 June 2013

ER -

Prominent outburst of the blazar CTA 102 in 2012

Abstract

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