ar X iv : a st ro - p h / 97 11 12 0 v 1 1 1 N ov 1 99 7 HEXTE Observations of SGR 1806 – 20 During Outburst
نویسنده
چکیده
We discuss observations of the soft gamma repeater SGR 1806–20 during the RXTE Target of Opportunity observations made in November 1996. During the ∼ 50 ksec RXTE observation, HEXTE (15− 250 keV) detected 17 bursts from the source, with fluxes ranging from 3× 10 to 2.2× 10 ergs cm s (20− 100 keV). We obtained spectra for the brighter HEXTE by fitting thermal bremsstrahlung and power law functions over the energy range 17 − 200 keV. The best-fit temperatures and photon indices range from 30 − 55 keV and 2.2 − 2.7, respectively. The weighted average temperature of the HEXTE bursts was 41.8±1.7 keV, which is consistent with previous SGR 1806–20 burst spectra. The persistent emission from SGR 1806−20 was not detected with HEXTE.
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