Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December

Svetlana G. Jorstad; Alan P. Marscher; Karen E. Williamson; Valeri M. Larionov; Paul S. Smith; Mark A. Gurwell; Anne Lahteenmaki

Abstract

Abstract: The quasar CTA102 underwent a dramatic outburst from gamma-ray toradio wavelengths in late 2016. The gamma-ray emission at 0.1-200 GeV roseup to (12.1+-0.7)x10^{-6} phot/s/cm^2, with a significant flattening of the spectral index. The blazar reached an optical brightness level never observed previously, <11 mag in R band, and an increase of the radio flux density at millimeter wavelengths with flattening of the radio spectrum was observed as well.We present analysis of multi-wavelength data during the event obtained at gamma-rays with the Fermi Large Area telescope, at X-rays provided by the NuStar X-ray telescope and Swift XRT and UVOT, in optical bands measured at different telescopes around the world along with polarimetric observations, and at mm-waves obtained at Metsahovi Radio Observatory and SubMillimeter Array, along with imaging of theparsec-scale jet of the quasar with the VLBA at 43 GHz. This research is funded in part by NASA through Fermi Guest Investigator grant NNX14AQ58G and by the National Science Foundation through grant AST-1615796.

Original language	English
Publication status	Published - 2017
MoE publication type	Not Eligible
Event	American Astronomical Society - High Energy Astrophysics Division Meeting - Sun Valley, United States Duration: 20 Aug 2017 → 24 Aug 2017 Conference number: 16

Conference

Conference	American Astronomical Society - High Energy Astrophysics Division Meeting
Abbreviated title	HEAD meeting
Country/Territory	United States
City	Sun Valley
Period	20/08/2017 → 24/08/2017

Access to Document

http://adsabs.harvard.edu/abs/2017HEAD...1610602J

Metsähovi Radio Observatory
Tammi, J. (Manager)
School of Electrical Engineering
Facility/equipment: Facility

Cite this

Jorstad, S. G., Marscher, A. P., Williamson, K. E., Larionov, V. M., Smith, P. S., Gurwell, M. A., & Lahteenmaki, A. (2017). Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December. Abstract from American Astronomical Society - High Energy Astrophysics Division Meeting, Sun Valley, Idaho, United States. http://adsabs.harvard.edu/abs/2017HEAD...1610602J

@conference{cb88e4bbf94446bdb79c0c4a23d15dff,

title = "Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December",

abstract = "Abstract: The quasar CTA102 underwent a dramatic outburst from gamma-ray toradio wavelengths in late 2016. The gamma-ray emission at 0.1-200 GeV roseup to (12.1+-0.7)x10^{-6} phot/s/cm^2, with a significant flattening of the spectral index. The blazar reached an optical brightness level never observed previously, <11 mag in R band, and an increase of the radio flux density at millimeter wavelengths with flattening of the radio spectrum was observed as well.We present analysis of multi-wavelength data during the event obtained at gamma-rays with the Fermi Large Area telescope, at X-rays provided by the NuStar X-ray telescope and Swift XRT and UVOT, in optical bands measured at different telescopes around the world along with polarimetric observations, and at mm-waves obtained at Metsahovi Radio Observatory and SubMillimeter Array, along with imaging of theparsec-scale jet of the quasar with the VLBA at 43 GHz. This research is funded in part by NASA through Fermi Guest Investigator grant NNX14AQ58G and by the National Science Foundation through grant AST-1615796.",

author = "Jorstad, {Svetlana G.} and Marscher, {Alan P.} and Williamson, {Karen E.} and Larionov, {Valeri M.} and Smith, {Paul S.} and Gurwell, {Mark A.} and Anne Lahteenmaki",

year = "2017",

language = "English",

note = "American Astronomical Society - High Energy Astrophysics Division Meeting, HEAD meeting ; Conference date: 20-08-2017 Through 24-08-2017",

}

Jorstad, SG, Marscher, AP, Williamson, KE, Larionov, VM, Smith, PS, Gurwell, MA & Lahteenmaki, A 2017, 'Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December', American Astronomical Society - High Energy Astrophysics Division Meeting, Sun Valley, United States, 20/08/2017 - 24/08/2017. <http://adsabs.harvard.edu/abs/2017HEAD...1610602J>

Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December. / Jorstad, Svetlana G.; Marscher, Alan P.; Williamson, Karen E. et al.
2017. Abstract from American Astronomical Society - High Energy Astrophysics Division Meeting, Sun Valley, Idaho, United States.

Research output: Contribution to conference › Abstract › Scientific › peer-review

TY - CONF

T1 - Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December

AU - Jorstad, Svetlana G.

AU - Marscher, Alan P.

AU - Williamson, Karen E.

AU - Larionov, Valeri M.

AU - Smith, Paul S.

AU - Gurwell, Mark A.

AU - Lahteenmaki, Anne

N1 - Conference code: 16

PY - 2017

Y1 - 2017

N2 - Abstract: The quasar CTA102 underwent a dramatic outburst from gamma-ray toradio wavelengths in late 2016. The gamma-ray emission at 0.1-200 GeV roseup to (12.1+-0.7)x10^{-6} phot/s/cm^2, with a significant flattening of the spectral index. The blazar reached an optical brightness level never observed previously, <11 mag in R band, and an increase of the radio flux density at millimeter wavelengths with flattening of the radio spectrum was observed as well.We present analysis of multi-wavelength data during the event obtained at gamma-rays with the Fermi Large Area telescope, at X-rays provided by the NuStar X-ray telescope and Swift XRT and UVOT, in optical bands measured at different telescopes around the world along with polarimetric observations, and at mm-waves obtained at Metsahovi Radio Observatory and SubMillimeter Array, along with imaging of theparsec-scale jet of the quasar with the VLBA at 43 GHz. This research is funded in part by NASA through Fermi Guest Investigator grant NNX14AQ58G and by the National Science Foundation through grant AST-1615796.

AB - Abstract: The quasar CTA102 underwent a dramatic outburst from gamma-ray toradio wavelengths in late 2016. The gamma-ray emission at 0.1-200 GeV roseup to (12.1+-0.7)x10^{-6} phot/s/cm^2, with a significant flattening of the spectral index. The blazar reached an optical brightness level never observed previously, <11 mag in R band, and an increase of the radio flux density at millimeter wavelengths with flattening of the radio spectrum was observed as well.We present analysis of multi-wavelength data during the event obtained at gamma-rays with the Fermi Large Area telescope, at X-rays provided by the NuStar X-ray telescope and Swift XRT and UVOT, in optical bands measured at different telescopes around the world along with polarimetric observations, and at mm-waves obtained at Metsahovi Radio Observatory and SubMillimeter Array, along with imaging of theparsec-scale jet of the quasar with the VLBA at 43 GHz. This research is funded in part by NASA through Fermi Guest Investigator grant NNX14AQ58G and by the National Science Foundation through grant AST-1615796.

M3 - Abstract

T2 - American Astronomical Society - High Energy Astrophysics Division Meeting

Y2 - 20 August 2017 through 24 August 2017

ER -

Multi-Wavelength Analysis of the Quasar CTA102 during a Dramatic Outburst in 2016 December

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