Highest Historical X-ray Flux through 0.3-10 keV Band in BL Lacertae Source 1ES 1215+303
ATel #4831; Bidzina Kapanadze (Ilia State Iniversity)
on 21 Feb 2013; 15:46 UT
Credential Certification: Bidzina Kapanadze (bidzina_kapanadze@iliauni.edu.ge)
We report the highest historical X-ray flux in the BL Lacertae source 1ES 1215+303(also known as ON 325, z=0.237) through 0.3-10 keV band detected by the X-ray Telescope (XRT) onboard the Swift satellite which observed the source during about 0.5 hr on 2013 February 19. Using the data allocated at the webpage http://www.swift.psu.edu/monitoring/, it was found that the object showed the 0.3-10 keV flux of 0.48+/-0.02 cts/s which is more than 4-times higher to that derived during previous observation performed on December 8, 2011 (0.11+\-0.01 cts/s). In the past, the highest 0.3-10 keV flux was recorded on 2011 January 4 amounting to 0.35+\-0.01 cts/s. we strongly encourage intensive multiwavelength observations of 1ES 1215+304 as with ground-based telescopes as by means of the different space missions.
