SRG discovery of SRGA J124404.1-632232 = SRGE J124403.8-632231 - possible Galactic X-ray transient
We've just found a new Galactic BeXRB! See, i.e. telegrams 14357, 14361 and 14364. On Jan 27, 2021, during the third consecutive all-sky survey, the Mikhail Pavlinsky ART-XC telescope on board the SRG observatory discovered a bright X-ray source at RA, Dec = 191.0172deg, -63.3756deg (J2000) with a 90% error radius of 25". The position was later refined by looking into archival eRosita data, which allowed to pinpoint the optical counterpart (Be star). We've triggered NuSTAR observations and the results suggest that's indeed a new X-ray pulsar!