TY - JOUR
T1 - Studies of optical/gamma-ray flares of blazar 4C +01.02
T2 - 5th Annual Conference on High Energy Astrophysics in Southern Africa, HEASA 2017
AU - Fermi-LAT collaboration
AU - Britto, Richard J.
AU - Marais, Johannes P.
AU - van Soelen, Brian
AU - Böttcher, Markus
AU - Schutte, Hester
AU - Buckley, David A.H.
AU - Falcone, Abe
N1 - Funding Information:
The Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged. This work performed in part under DOE Contract DE-AC02-76SF00515.
Funding Information:
The authors affiliated to South African institutions acknowledge support from the National Research Foundation, South Africa and the South African Gamma-ray Astronomy Programme (SA-GAMMA).
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2017
Y1 - 2017
N2 - The flat spectrum radio quasar 4C +01.02 became one of the brightest active galactic nuclei detected at high redshift (z = 2.1) in gamma rays when it underwent a series of outbursts during several months in 2016. We monitored this source in gamma rays using the Large Area Telescope onboard of the Fermi spacecraft (Fermi-LAT), and in optical using the Las Cumbres Observatory (LCO). The highest peak flux detected was F(E > 100 MeV) = (2.8 ± 0.3) 10−6 ph cm−2 s−1 on 10 July 2016 (MJD 57579, daily average). We also obtained optical spectropolarimetry with the Robert Stobie Spectrograph on the Southern African Large Telescope (SALT-RSS) and observed a degree of linear polarisation of up to 10% during flaring states, and ∼1% during a quiescent period. We report recent updates we obtained in our time-domain and spectral studies of this source in July–August 2016, November–December 2016, and July 2017.
AB - The flat spectrum radio quasar 4C +01.02 became one of the brightest active galactic nuclei detected at high redshift (z = 2.1) in gamma rays when it underwent a series of outbursts during several months in 2016. We monitored this source in gamma rays using the Large Area Telescope onboard of the Fermi spacecraft (Fermi-LAT), and in optical using the Las Cumbres Observatory (LCO). The highest peak flux detected was F(E > 100 MeV) = (2.8 ± 0.3) 10−6 ph cm−2 s−1 on 10 July 2016 (MJD 57579, daily average). We also obtained optical spectropolarimetry with the Robert Stobie Spectrograph on the Southern African Large Telescope (SALT-RSS) and observed a degree of linear polarisation of up to 10% during flaring states, and ∼1% during a quiescent period. We report recent updates we obtained in our time-domain and spectral studies of this source in July–August 2016, November–December 2016, and July 2017.
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M3 - Conference article
AN - SCOPUS:85063591933
SN - 1824-8039
VL - 319
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 013
Y2 - 4 October 2017 through 6 October 2017
ER -