MAXI/GSC detection of a new X-ray brightening from Swift J0243.6+6124, LS I +61 303, or a new X-ray transient MAXI J0242+611
Abstract
The MAXI/GSC nova alert system triggered on a bright X-ray transient source at 13:23 UT on April 8, 2023. Assuming that the source flux was constant over six transits from 04:06 to 19:35 on April 8, we obtain the source position at (R.A., Dec) = (40.585 deg, 61.145 deg) = (02 42 20, +61 08 43) (J2000) with a 90% C.L. statistical error of 0.58 deg and an additional systematic uncertainty of 0.1 deg (90% containment radius).
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- April 2023
- Bibcode:
- 2023ATel15983....1S
- Keywords:
-
- Black Hole;
- Neutron Star;
- Transient