theory

parameter

value

initial thermal model

$E_{51}$

1

initial thermal model

$n_0$

1

initial thermal model

$t_{\mathrm{7,0}}$

0.0078

initial thermal model

$N^{\mathrm{<mo>\; *\; </mo>}}$

1.22 × 10¹⁴

initial thermal model

$N_{SN}$

1.91 × 10¹¹

SB

$r_0$

4000 pc

SB

$Z_0$

74.07 pc

SB

$v_0$

30,000 km/s

SB

t

8 × 10⁸ yr