Strong inter/intra-day flux variations detected at 4.8 GHz in the Fermi-LAT source S5 1357+769

ATel #6048; Liu X., Lin M.-Q., Liu J., Cui L.(XAO), Krichbaum T. P.(MPIfR), Bignall H.(Curtin University)
on 7 Apr 2014; 05:27 UT
Credential Certification: Xiang Liu (liux@xao.ac.cn)

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We observed the Fermi-LAT detected (2FGL J1358.1+7644) quasar S5 1357+769 at 4.8 GHz in two Intra-day variability (IDV) sessions with the Urumqi 25m radio telescope of Xinjiang Astronomical Observatory (XAO), we find strong inter/intra-day flux variability both in 8-12 Feb. 2014 and 7-9 March 2014. We show the results below, which scaled to 3c286's flux density 7.51 Jy. MJD Flux and error(Jy) -------------------------------------- 08-12/02/2014 56696.2399 0.45002 0.00512 56696.28059 0.45831 0.00486 56696.31779 0.44703 0.00511 56696.36158 0.44334 0.00451 56696.40927 0.43811 0.00678 56696.46464 0.4515 0.00535 56696.5231 0.45101 0.00589 56696.63323 0.43656 0.00576 56696.71734 0.43951 0.00544 56696.78681 0.44721 0.00409 56696.8621 0.4458 0.00451 56696.9198 0.43771 0.00462 56696.98159 0.43674 0.00447 56697.04229 0.44719 0.00543 56697.10083 0.43956 0.00468 56697.15261 0.44535 0.00466 56697.20483 0.43269 0.00495 56697.25576 0.44982 0.00466 56697.31047 0.4436 0.00548 56697.47438 0.4259 0.00568 56697.53195 0.43971 0.00654 56697.60578 0.44015 0.00422 56697.67691 0.43745 0.00548 56697.76286 0.45314 0.0042 56697.83239 0.44928 0.00494 56697.89778 0.44484 0.00585 56697.95882 0.44268 0.0052 56698.01958 0.45506 0.00473 56698.08072 0.45247 0.00513 56698.13542 0.47191 0.00564 56698.18415 0.46115 0.00469 56698.23522 0.44262 0.00593 56698.28168 0.45901 0.00494 56698.38305 0.44391 0.00718 56698.44759 0.46431 0.00607 56698.5599 0.46707 0.00661 56698.62897 0.48279 0.00612 56698.71914 0.4838 0.01091 56698.79179 0.48532 0.00465 56698.9279 0.51222 0.00882 56698.99545 0.49691 0.00477 56699.06327 0.48276 0.0049 56699.495 0.50857 0.00691 56699.55761 0.49783 0.00589 56699.62958 0.5141 0.00602 56699.74984 0.50742 0.0044 56699.81887 0.51753 0.00676 56699.87789 0.49638 0.00535 56699.93837 0.49053 0.00672 56700.05829 0.48011 0.00549 56700.11339 0.47355 0.00508 07-09/03/2014 56723.18975 0.40036 0.00371 56723.22945 0.40416 0.00417 56723.27017 0.4039 0.00381 56723.30794 0.41483 0.00334 56723.34615 0.42689 0.00485 56723.39035 0.41432 0.00377 56723.43888 0.43538 0.00436 56723.50518 0.42762 0.00397 56723.57169 0.42788 0.00401 56723.70833 0.41824 0.00329 56723.77996 0.40638 0.00361 56723.84338 0.3957 0.00358 56723.97498 0.39897 0.00386 56724.02432 0.39529 0.00355 56724.07227 0.4031 0.00375 56724.18362 0.41153 0.00352 56724.22368 0.4158 0.0036 56724.26428 0.41418 0.00403 56724.30206 0.41327 0.00429 56724.38423 0.42185 0.00343 56724.49909 0.4184 0.00359 56724.56538 0.42479 0.00372 56724.63861 0.42691 0.00384 56724.70176 0.41668 0.00343 56724.77328 0.42351 0.00396 56724.84343 0.4158 0.00338 56724.90719 0.40613 0.00347 56724.97052 0.41004 0.00377 56725.02013 0.40807 0.0039 56725.06793 0.41481 0.00365 56725.12148 0.42109 0.00354 56725.16482 0.40621 0.00422 56725.20488 0.40038 0.00387 56725.40777 0.41024 0.00479 56725.61101 0.41455 0.00336 56725.6796 0.40298 0.0039