Table 1: Swift BAT spectral fits. Quoted errors are 90% confidence on 1 interesting parameter.
GRB050126 GRB050219a

Parameter

T90 (s)
$25.7\pm0.1$ $23.5\pm0.02$

Fluence ( $\times10^{-6}$ erg cm^-2) $1.7\pm0.3$ $5.2\pm 0.4$

Model 1: Power-law (20-150keV)

$\Gamma$
$1.44\pm{0.18}$ $\rm 1.23^{+0.06}_{-0.06}$

$\chi^{2}/{\rm d.o.f.}$ 66.2/53 125/53

Model 2: Cut-off powerlaw (20-150 keV)

$\Gamma$
- $\rm -0.39^{+0.38}_{-0.40}$

$E_{\rm peak}$ - $9\rm 7.0^{+51.1}_{-31.8}$

$\chi^{2}/{\rm d.o.f.}$ - 46.9/52

**Table 1:** Swift BAT spectral fits. Quoted errors are 90% confidence on 1 interesting parameter.
	GRB050126	GRB050219a
Parameter
T90 (s)	$25.7\pm0.1$	$23.5\pm0.02$
Fluence ( $\times10^{-6}$ erg cm^-2)	$1.7\pm0.3$	$5.2\pm 0.4$
	Model 1: Power-law (20-150keV)
$\Gamma$	$1.44\pm{0.18}$	$\rm 1.23^{+0.06}_{-0.06}$
$\chi^{2}/{\rm d.o.f.}$	66.2/53	125/53
	Model 2: Cut-off powerlaw (20-150 keV)
$\Gamma$	-	$\rm -0.39^{+0.38}_{-0.40}$
$E_{\rm peak}$	-	$9\rm 7.0^{+51.1}_{-31.8}$
$\chi^{2}/{\rm d.o.f.}$	-	46.9/52

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