Detection of bursting activity with INTEGRAL/SPI-ACS, possibly from 1E 2259+586 or SGR 1806-20
Abstract
We report on a possible detection of bursting activity (tentatively from the magnetars 1E 2259+586 or SGR 1806-20) with the SPI Anti-Coincidence System (ACS) on-board INTEGRAL.
From 2012-04-19T12:03:10 to 2012-04-21 06:28:49 UTC, the ACS detected 25 short (from 50ms to 8s) bursts at a significance level of 5-10 sigma (peak count-rate of 1×104 - 1×105 counts/s on 50 ms time bin).- Publication:
-
The Astronomer's Telegram
- Pub Date:
- May 2012
- Bibcode:
- 2012ATel.4101....1S
- Keywords:
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- Gamma Ray;
- Neutron Star;
- Soft Gamma-ray Repeater;
- Transient;
- Pulsar