Infrared observations of soft gamma repeaters.
Abstract
We have made IRAS (12, 25, and 60μm) maximum entropy images of the three known soft gamma repeaters SGR 0526-66, SGR 1806-20, and SGR 1900+14. In addition we have obtained a high-resolution 10μm image of SGR 1900+14 using TIMMI at the ESO 3.6m telescope. All three SGRs have associated with them an infrared source. The infrared emission associated with SGR 0526-66 likely originates from heated dust in the supernova remnant N49. The infrared properties of the two galactic SGRs are similar; both are unresolved at 12 and 25μm, and extended at 60μm. The relation of these infrared sources (if any) to the SGRs is as yet unclear.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 1996
- Bibcode:
- 1996A&A...314..146V
- Keywords:
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- GAMMA RAYS: BURSTS;
- CIRCUMSTELLAR MATTER;
- SUPERNOVA REMNANTS;
- INFRARED: ISM: CONTINUUM