Continued Swift and GROND observations of Swift J2058+0516
Abstract
We report further observations of the transient Swift J2058+0516 (Krimm et al. 2011, ATEL #3384; Greiner et al. 2011, ATEL #3385, Rau et al. 2011, ATEL #3390) by Swift and GROND.
Swift J2058.4+0516 has now faded below detectability in the Swift/BAT (15-50 keV). The last significant detection was for the 4-day period 30 May - 2 June 2011 (0.0022 ± 0.0004 ct/s/cm2; ~10 mCrab). The 1-sigma upper limit for 10 June 2011 is 0.003 ct/s/cm2.
We obtained 4 Swift/XRT observations over the last 10 days, sometimes stretching over several orbits.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- June 2011
- Bibcode:
- 2011ATel.3425....1R
- Keywords:
-
- Infra-Red;
- Optical;
- X-ray;
- Transient