Table 2: Observed line fluxes $F_\lambda$ of PNe in Sextans A and Sextans B, on a scale where F(H $\beta$ ) = 100.0, and after correcting for atmospheric dispersion effects. ":'' indicates uncertain values, and "<'' upper limits. Associated errors are described in the text. Some nebular quantities are also reported: $c_{\beta }$ , the electron density and temperatures $T_{\rm e}$ ([O III]) and $T_{\rm e}$ ([N II]), and the heliocentric radial velocity of three PNe where it was measured.
Ion SexA-PN SexB-PN1 SexB-PN2 SexB-PN3 SexB-PN4 SexB-PN5

$c_{\beta }$ 0.10 $\pm$ 0.01 0.10 $\pm$ 0.02 0.02 $\pm$ 0.02 0.13 $\pm$ 0.01 0.17 $\pm$ 0.03 0.22 $\pm$ 0.01

$N_{\rm e}$ (cm^-3) 2700 $\pm$ 100 - - - - -

$T_{\rm e}$ ([O III]) (K) 22 300 $\pm$ 1000 12 800 $\pm$ 2000 16 000 $\pm$ 3000 20 000 $\pm$ 2000 11 300 $\pm$ 3000 12 800 $\pm$ 1000

$T_{\rm e}$ ([N II]) (K) 13 400 $\pm$ 500 - - - - -

V (km s^-1) - 310 $\pm$ 15 - - 310 $\pm$ 15 310 $\pm$ 15

372.7 [O II]
176. $\pm$ 70 18: - - - 21. $\pm$ 10

383.5 H9 8. $\pm$ 4 - 8. $\pm$ 6 11. $\pm$ 6 - -

386.8 [Ne III] 19. $\pm$ 6 38. $\pm$ 10 28. $\pm$ 7 55. $\pm$ 5 43. $\pm$ 7 93. $\pm$ 5

388.9 He I, H8 28. $\pm$ 5 16. $\pm$ 8 21. $\pm$ 6 32. $\pm$ 5 24. $\pm$ 5 16. $\pm$ 4

396.7 [Ne III], H7 27. $\pm$ 3 29. $\pm$ 7 22. $\pm$ 7 29. $\pm$ 4 37. $\pm$ 5 46. $\pm$ 3

410.1 H $\delta$ 31. $\pm$ 2 25. $\pm$ 7 19. $\pm$ 6 26. $\pm$ 4 26. $\pm$ 7 23. $\pm$ 3

434.0 H $\gamma$ 48. $\pm$ 2 48. $\pm$ 4 45. $\pm$ 4 51. $\pm$ 3 51. $\pm$ 45. $\pm$ 1.6

436.3 [O III] 23. $\pm$ 2 8. $\pm$ 4 13. $\pm$ 4 16. $\pm$ 4 7. $\pm$ 5 11. $\pm$ 1.9

447.1 He I 1.3 $\pm$ 1 5. $\pm$ 4 9. $\pm$ 3 4. $\pm$ 2 - 5. $\pm$ 2

468.6 He II 51. $\pm$ 2 <1 <3 <2 <1 6. $\pm$ 2

471.2 He I,[Ar IV] - - - 2. $\pm$ 1 - -

474.0 [Ar IV] - - - 3. $\pm$ 2 - -

486.1 H $\beta$ 100. $\pm$ 1 100. $\pm$ 4 100. $\pm$ 4 100. $\pm$ 1.5 100. $\pm$ 5 100. $\pm$ 2

495.9 [O III] 206. $\pm$ 1 202. $\pm$ 3 190. $\pm$ 4 182. $\pm$ 1.6 256. $\pm$ 3 316. $\pm$ 1.8

500.7 [O III] 611. $\pm$ 1 590. $\pm$ 2 570. $\pm$ 3 474. $\pm$ 1 798. $\pm$ 3 940. $\pm$ 1.5

520.0 [N I] 38. $\pm$ 1 - - - - -

541.1 He II 4.2 $\pm$ 1 - - - - -

575.5 [N II] 24. $\pm$ 1 - - - -

587.6 He I 8. $\pm$ 1 16. $\pm$ 2 17. $\pm$ 5 15. $\pm$ 1 15. $\pm$ 3 22. $\pm$ 2

630.0 [O I] 71. $\pm$ 1 3. $\pm$ 2 3. $\pm$ 1 - - -

636.3 [O I] 24. $\pm$ 1 - - - - -

654.8 [N II] 291. $\pm$ 1. - - - - -

656.3 H $\alpha$ 306. $\pm$ 1.5 302. $\pm$ 2 290. $\pm$ 3 312. $\pm$ 1.3 321. $\pm$ 3 332. $\pm$ 1.3

658.4 [N II] 835. $\pm$ 1.8 2: 7: 6. $\pm$ 1.8 4. $\pm$ 3 12. $\pm$ 1.2

667.8 He I 3. $\pm$ 1.6 3. $\pm$ 2 3. $\pm$ 1.5 4. $\pm$ 1 - 3. $\pm$ 1.5

671.7 [S II] 5. $\pm$ 1.6 - - - - -

673.1 [S II] 8. $\pm$ 1.5 - - - - -

706.5 He I 4. $\pm$ 1.6 6. $\pm$ 3 - 10. $\pm$ 4 4. $\pm$ 2 3. $\pm$ 1.5

713.5 [Ar III] 3. $\pm$ 3 - - 3. $\pm$ 2 - -

728.1 He I 2. $\pm$ 2 - - - - -

732.5 [O II] 28. $\pm$ 2 5. $\pm$ 3 7. $\pm$ 3 - 11. $\pm$ 2 -

906.9 [S III] 7. $\pm$ 3 - - - 2. $\pm$ 2 -

953.2 [S III] 19. $\pm$ 2 - - 5: 5: 17:

**Table 2:** Observed line fluxes $F_\lambda$ of PNe in Sextans A and Sextans B, on a scale where F(H $\beta$ ) = 100.0, and after correcting for atmospheric dispersion effects. ":'' indicates uncertain values, and "<'' upper limits. Associated errors are described in the text. Some nebular quantities are also reported: $c_{\beta }$ , the electron density and temperatures $T_{\rm e}$ ([O III]) and $T_{\rm e}$ ([N II]), and the heliocentric radial velocity of three PNe where it was measured.
Ion	SexA-PN	SexB-PN1	SexB-PN2	SexB-PN3	SexB-PN4	SexB-PN5
$c_{\beta }$	0.10 $\pm$ 0.01	0.10 $\pm$ 0.02	0.02 $\pm$ 0.02	0.13 $\pm$ 0.01	0.17 $\pm$ 0.03	0.22 $\pm$ 0.01
$N_{\rm e}$ (cm^-3)	2700 $\pm$ 100	-	-	-	-	-
$T_{\rm e}$ ([O III]) (K)	22 300 $\pm$ 1000	12 800 $\pm$ 2000	16 000 $\pm$ 3000	20 000 $\pm$ 2000	11 300 $\pm$ 3000	12 800 $\pm$ 1000
$T_{\rm e}$ ([N II]) (K)	13 400 $\pm$ 500	-	-	-	-	-
V (km s^-1)	-	310 $\pm$ 15	-	-	310 $\pm$ 15	310 $\pm$ 15
372.7 [O II]	176. $\pm$ 70	18:	-	-	-	21. $\pm$ 10
383.5 H9	8. $\pm$ 4	-	8. $\pm$ 6	11. $\pm$ 6	-	-
386.8 [Ne III]	19. $\pm$ 6	38. $\pm$ 10	28. $\pm$ 7	55. $\pm$ 5	43. $\pm$ 7	93. $\pm$ 5
388.9 He I, H8	28. $\pm$ 5	16. $\pm$ 8	21. $\pm$ 6	32. $\pm$ 5	24. $\pm$ 5	16. $\pm$ 4
396.7 [Ne III], H7	27. $\pm$ 3	29. $\pm$ 7	22. $\pm$ 7	29. $\pm$ 4	37. $\pm$ 5	46. $\pm$ 3
410.1 H $\delta$	31. $\pm$ 2	25. $\pm$ 7	19. $\pm$ 6	26. $\pm$ 4	26. $\pm$ 7	23. $\pm$ 3
434.0 H $\gamma$	48. $\pm$ 2	48. $\pm$ 4	45. $\pm$ 4	51. $\pm$ 3	51. $\pm$	45. $\pm$ 1.6
436.3 [O III]	23. $\pm$ 2	8. $\pm$ 4	13. $\pm$ 4	16. $\pm$ 4	7. $\pm$ 5	11. $\pm$ 1.9
447.1 He I	1.3 $\pm$ 1	5. $\pm$ 4	9. $\pm$ 3	4. $\pm$ 2	-	5. $\pm$ 2
468.6 He II	51. $\pm$ 2	<1	<3	<2	<1	6. $\pm$ 2
471.2 He I,[Ar IV]	-	-	-	2. $\pm$ 1	-	-
474.0 [Ar IV]	-	-	-	3. $\pm$ 2	-	-
486.1 H $\beta$	100. $\pm$ 1	100. $\pm$ 4	100. $\pm$ 4	100. $\pm$ 1.5	100. $\pm$ 5	100. $\pm$ 2
495.9 [O III]	206. $\pm$ 1	202. $\pm$ 3	190. $\pm$ 4	182. $\pm$ 1.6	256. $\pm$ 3	316. $\pm$ 1.8
500.7 [O III]	611. $\pm$ 1	590. $\pm$ 2	570. $\pm$ 3	474. $\pm$ 1	798. $\pm$ 3	940. $\pm$ 1.5
520.0 [N I]	38. $\pm$ 1	-	-	-	-	-
541.1 He II	4.2 $\pm$ 1	-	-	-	-	-
575.5 [N II]	24. $\pm$ 1	-	-	-	-
587.6 He I	8. $\pm$ 1	16. $\pm$ 2	17. $\pm$ 5	15. $\pm$ 1	15. $\pm$ 3	22. $\pm$ 2
630.0 [O I]	71. $\pm$ 1	3. $\pm$ 2	3. $\pm$ 1	-	-	-
636.3 [O I]	24. $\pm$ 1	-	-	-	-	-
654.8 [N II]	291. $\pm$ 1.	-	-	-	-	-
656.3 H $\alpha$	306. $\pm$ 1.5	302. $\pm$ 2	290. $\pm$ 3	312. $\pm$ 1.3	321. $\pm$ 3	332. $\pm$ 1.3
658.4 [N II]	835. $\pm$ 1.8	2:	7:	6. $\pm$ 1.8	4. $\pm$ 3	12. $\pm$ 1.2
667.8 He I	3. $\pm$ 1.6	3. $\pm$ 2	3. $\pm$ 1.5	4. $\pm$ 1	-	3. $\pm$ 1.5
671.7 [S II]	5. $\pm$ 1.6	-	-	-	-	-
673.1 [S II]	8. $\pm$ 1.5	-	-	-	-	-
706.5 He I	4. $\pm$ 1.6	6. $\pm$ 3	-	10. $\pm$ 4	4. $\pm$ 2	3. $\pm$ 1.5
713.5 [Ar III]	3. $\pm$ 3	-	-	3. $\pm$ 2	-	-
728.1 He I	2. $\pm$ 2	-	-	-	-	-
732.5 [O II]	28. $\pm$ 2	5. $\pm$ 3	7. $\pm$ 3	-	11. $\pm$ 2	-
906.9 [S III]	7. $\pm$ 3	-	-	-	2. $\pm$ 2	-
953.2 [S III]	19. $\pm$ 2	-	-	5:	5:	17:

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Chemical abundances of planetary nebulae and H II regions
	4 The peculiar PN of Sextans A
	5 Summary
	References