Table 1: Dereddened spectra and physical conditions from different regions in NGC 6309. Intensity values are relative to $I_{\rm H\beta }$ = 100. Extinction law ($f_\lambda $) is from Howarth (1983). The size of the integration region (in arcsec) along the slit is 7 $.\!\!^{\prime\prime}$4 for R1, R2, R3, and R4, and 5 $.\!\!^{\prime\prime}$3 for the rest. Slit width was set at 1 $.\!\!^{\prime\prime}$6 in all the cases.
Ion $\lambda_0$ (Å) $f_\lambda $ R1 R2 R3 R4 E2 W1 W2
[O II] 3727 0.256 108 102 - - - - -
[Ne III] 3869 0.230 163 165 - - - - -
[Ne III] 3968 0.210 68 67 - - - - -
[S II] 4071 0.189 6.5 - - - - - -
H$\delta$ + He II 4101 0.182 33 34 - - - - -
H$\gamma$ 4340 0.127 55 53 26 27 52 - -
[O III] 4363 0.121 12 12 7.9 8.5 - - -
He I 4471 0.095 8.2 7.1 3.4 3.2 - - -
He II 4540 0.078 - - 2.8 3.3 - - -
N III 4640 0.054 4.3 5.0 5.2 6.1 - - -
He II 4686 0.043 29 31 81 79 86 106 -
[Ar IV] 4711 0.037 6.0 5.8 12 12 - - -
[Ar IV] 4740 0.030 4.6 4.6 9.4 9.3 - - -
H$\beta$ 4861 0.000 100 100 100 100 100 100 100
[O III] 4959 -0.024 487 464 335 365 341 364 451
[O III] 5007 -0.036 1504 1466 993 1081 1046 1097 1238
N I 5199 -0.082 0.9 - - - - - -
He II 5411 -0.133 2.5 2.3 6.2 6.0 8.5 - -
[Cl III] 5517 -0.154 1.1 1.0 0.7 0.7 - - -
[Cl III] 5537 -0.157 1.0 1.0 0.7 0.6 - - -
[N II] 5755 -0.195 1.0 1.0 0.6 - - - -
He I 5876 -0.215 13 12 7.1 8.1 - - -
[O I] 6300 -0.282 6.8a 7.2a 2.5 1.2 - - -
[S III] 6312 -0.283 - - 1.8 1.7 - - -
[O I] 6364 -0.291 1.9 1.8 0.8 0.4 - - -
[Ar V] 6435 -0.302 - - 1.4 1.4 - - -
[N II] 6548 -0.318 24 31 9.3 4.7 - - -
H$\alpha $ 6563 -0.320 285 285 283 284 284 284 284
[N II] 6583 -0.323 60 60 27 12 8.8 - -
He I 6678 -0.336 3.4 3.6 2.4 2.6 - - -
[S II] 6717 -0.342 8.0 9.1 2.9 1.3 - - -
[S II] 6731 -0.344 11 12 4.8 2.1 - - -
[Ar V] 7006 -0.380 - - 3.1 2.7 - - -
He I 7065 -0.387 3.1 3.1 1.9 2.0 - - -
[Ar III] 7136 -0.396 17 19 14 13 19 21 21
[Ar IV]+[Fe II] 7170 -0.401 1 - 0.9 0.3 - - -
He II 7178 -0.401 - - 0.9 0.7 - - -
[O II] 7320 -0.419 5.6b 5.7b 2.3 1.4 - - -
[O II] 7330 -0.420 - - 2.0 1.3 - - -
$c_{\rm H\beta}$     0.96 0.97 0.70 0.80 0.86 0.85 0.97
$\log~I_{\rm H\beta}$     -13.4 -13.5 -13.2 -13.4 -15.2 -15.3 -15.9
$T_{\rm e}$[O III] (K)   10 800 10 900 10 700 10 600 - - -
$T_{\rm e}$[N II] (K)   10 300 10 100 11 800 - - - -
$N_{\rm e}$[S II] (cm-3)   1800 1440 4000 3600 - - -
$N_{\rm e}$[Cl III] (cm-3)   2100 2350 2600 1700 - - -
$N_{\rm e}$[Ar IV] (cm-3)   >1000 >1500 >1700 >1500 - - -
$\log $H$\alpha $/[N II]     0.533 0.499 0.889 1.244 - - -
$\log $H$\alpha $/[S II]     1.182 1.142 1.565 1.913 - - -
$\log [O {\sc iii}]5007/$H$\alpha $     0.723 0.711 0.545 0.580 - - -
$\log \lambda6717/\lambda6731$     0.748 0.792 0.603 0.623 - - -
a This emission line is blended with [S III]6312 Å.
b This emission line is blended with [O II]7330 Å.
Mean uncertainties are $\Delta c_{\rm H\beta}=$ $\pm0.02$, $\Delta T_{\rm e}=$ $\pm500$ K, $\Delta N_{\rm e}=$ $\pm400$ cm-3.

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