耀变体4C+01.02的光学/伽马射线耀斑研究:2016-2017年观测的最新进展

Proceedings of 5th Annual Conference on High Energy Astrophysics in Southern Africa — PoS(HEASA2017) Pub Date : 2018-10-04 DOI:10.22323/1.319.0013

R. Britto, M. Böttcher, H. Schutte, A. Falcone, J. P. Marais, B. V. Soelen, D. Buckley

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摘要

平谱射电类星体4C + 1.02在2016年的几个月里经历了一系列爆发，成为在伽马射线高红移(z = 2.1)下探测到的最亮的活动星系核之一。我们使用费米航天器(Fermi- lat)上的大面积望远镜(Large Area Telescope)在伽马射线中监测这个源，并使用拉斯康布雷斯天文台(LCO)在光学方面监测这个源。2016年7月10日检测到的最高通量峰为F(E > 100 MeV) = (2.8 +/- 0.3) 10^-6 ph cm^-2 s^-1 (MJD 57579，日平均值)。我们还使用南部非洲大望远镜(SALT-RSS)上的罗伯特·斯托比光谱仪进行了光学光谱偏振测量，观察到在耀斑状态下的线偏振度高达10%，在静止期为~1%。我们报告了我们在2016年7月至8月、2016年11月至12月和2017年7月对该源的时域和光谱研究中获得的最新更新。

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Studies of optical/gamma-ray flares of blazar 4C+01.02: recent updates from the 2016-2017 observations

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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Proceedings of 5th Annual Conference on High Energy Astrophysics in Southern Africa — PoS(HEASA2017)

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