Table 1: Observed and calculated physical and dynamical characteristics of the ellipsoidal stellar wind bubble surrounding 3C 434.1.
Parameter Value

Geometric Centre ( $\ell _{0},b_{0}$ ) 93.961 $\hbox{$^\circ$ }$ , 1.123 $\hbox{$^\circ$ }$

Systemic velocity $v_{\rm sys}$ -79 km s^-1

Distance $5.2\pm 1.1$ kpc

Size (semimajor, semiminor axes) $36\pm 7$ pc, $29\pm 6$ pc

Mean Thickness of Shell $3.1\pm 0.6$ pc

Expansion Velocity $v_{\rm e}$ $14 \pm 3$ km s^-1

H I density within shell n $12.9 \pm 2$ cm^-3

Local ISM H I density n₀ $4.6 \pm 1$ cm^-3

H I mass within shell $M_{\rm shell}$ $14~500 \pm 2500$ $M_{\odot}$

Kinetic energy of shell $E_{\rm k}$ $2.8 \pm 0.5 \times 10^{49}$ ergs

**Table 1:** Observed and calculated physical and dynamical characteristics of the ellipsoidal stellar wind bubble surrounding 3C 434.1.
Parameter	Value
Geometric Centre ( $\ell _{0},b_{0}$ )	93.961 $\hbox{$^\circ$ }$ , 1.123 $\hbox{$^\circ$ }$
Systemic velocity $v_{\rm sys}$	-79 km s^-1
Distance	$5.2\pm 1.1$ kpc
Size (semimajor, semiminor axes)	$36\pm 7$ pc, $29\pm 6$ pc
Mean Thickness of Shell	$3.1\pm 0.6$ pc
Expansion Velocity $v_{\rm e}$	$14 \pm 3$ km s^-1
H I density within shell n	$12.9 \pm 2$ cm^-3
Local ISM H I density n₀	$4.6 \pm 1$ cm^-3
H I mass within shell $M_{\rm shell}$	$14~500 \pm 2500$ $M_{\odot}$
Kinetic energy of shell $E_{\rm k}$	$2.8 \pm 0.5 \times 10^{49}$ ergs

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