2004A&A...417L..45G


Query : 2004A&A...417L..45G

2004A&A...417L..45G - Astronomy and Astrophysics, volume 417, L45-48 (2004/4-3)

Spectral evolution of weak bursts from SGR 1806-20 observed with INTEGRAL.

GOETZ D., MEREGHETTI S., MIRABEL I.F. and HURLEY K.

Abstract (from CDS):

We report on bursts from the Soft Gamma-Ray Repeater SGR 1806-20 detected with INTEGRAL in October 2003, during a period of moderate activity of the source. The spectral and temporal properties of 21 short bursts are consistent with those found in previous observations, even if these bursts are among the faintest observed in the 15-200keV range from this source. During some of the bursts a clear spectral evolution is visible. The data also show, for the first time, evidence for a hardness-intensity anti-correlation within SGR 1806-20 bursts.

Abstract Copyright:

Journal keyword(s): gamma rays: bursts - gamma rays: observations - pulsars: general - stars: individual: SGR 1806-20

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 PSR B0525-66 Psr 05 26 00.7 -66 04 35           ~ 545 1
2 PSR J1808-2024 Psr 18 08 39.32 -20 24 40.1           ~ 1240 2
3 GBS 1900+14 gB 19 07 13 +09 19.6           ~ 857 0
4 CTB 109 BL? 23 01 35 +58 53.0           ~ 344 0

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