The Highest Historical X-ray Brightness State in HBL Source 1ES 1727+502
ATel #8224; Bidzina Kapanadze (Ilia State University, Tbilisi, Georgia)
on 29 Oct 2015; 21:03 UT
Credential Certification: Bidzina Kapanadze (bidzina_kapanadze@iliauni.edu.ge)
Subjects: X-ray, AGN, Blazar
The nearby TeV-detected HBL object 1ES 1727+502 (1Zw 187, z=0.055) has been monitored intensively by Swift since 2015 October 11 on the basis of our and Fallah Ramazani's ToO requests of medium, high and highest priorities. During these observations, the source showed an oscillatory-like behaviour varying its brightness by 0.36-0.79 cts/s, and the 0.3-10 keV count rate reached the value of 3.23+/-0.05 cts/s on October 29 that is the highest historical brightness level for this object. In the framework of one-zone SSC models, an increased activity is also expected in the UV-radio and gamma-ray parts of the spectrum, and intensive multiwavelength observations of 1ES 1727+502 are strongly encouraged to study instable processes and emission mechanisms in this source.
