Table 3: Observed line fluxes $F_\lambda$ , on a scale where F(H $\beta$ ) = 100.0, and nebular parameters of the H II regions in Sextans A and Sextans B. Symbols are as in Table 1.
SexA HSK2 HSK3 HSK7 HSK9 HSK14 HSK16 HSK19 HSK23 HSK24

$c_{\beta }$ 0.0 $\pm$ 0.01 0.23 $\pm$ 0.01 0.13 $\pm$ 0.01 0.0 $\pm$ 0.01 0.05 $\pm$ 0.02 0.14 $\pm$ 0.01 0.05 $\pm$ 0.01 0.21 $\pm$ 0.01 0.0 $\pm$ 0.02

$N_{\rm e}$ (cm^-3) 100 $\pm$ 100 200 $\pm$ 100 <100 400 $\pm$ 200 <100 <100 <100 <100 100 $\pm$ 100

$T_{\rm e}$ ([O III]) (K) <12 000 13 000 $\pm$ 3000 17 000 $\pm$ 4000 14 000: 14 000 $\pm$ 1000 <14 000 <13 000 - <13 000

Ion

372.7 [O II] 240. $\pm$ 10 126. $\pm$ 10 205. $\pm$ 10 145. $\pm$ 9 145. $\pm$ 16 213. $\pm$ 10 179. $\pm$ 8 194. $\pm$ 8 160. $\pm$ 10

386.8 [Ne III] 11. $\pm$ 5 15. $\pm$ 8 8. $\pm$ 6 10. $\pm$ 6 28. $\pm$ 8 8. $\pm$ 5 15. $\pm$ 5 5. $\pm$ 3 22. $\pm$ 8

388.9 He I, H8 - - 9. $\pm$ 5 15. $\pm$ 5 21. $\pm$ 7 15. $\pm$ 5 8. $\pm$ 4 10. $\pm$ 3 18. $\pm$ 7

396.7 [Ne III], H7 - - 14. $\pm$ 3 10: - 20. $\pm$ 4 17. $\pm$ 3 9. $\pm$ 2 20. $\pm$ 8

410.1 H $\delta$ 24. $\pm$ 3 20. $\pm$ 5 25. $\pm$ 3 22. $\pm$ 3 26. $\pm$ 3 21. $\pm$ 2 25. $\pm$ 2 25. $\pm$ 2 28. $\pm$ 8

434.0 H $\gamma$ 42. $\pm$ 2 35. $\pm$ 2 46. $\pm$ 3 41. $\pm$ 3 47. $\pm$ 3 46. $\pm$ 2 42. $\pm$ 2 43. $\pm$ 2 47. $\pm$ 5

436.3 [O III] <1 2 $\pm$ 2 3 $\pm$ 3 2. $\pm$ 3 6. $\pm$ 3 <1 <1 - <1

468.6 He II <1 <1 <1 <1 3: 6: <1 <1 <1

486.1 H $\beta$ 100. $\pm$ 2 100. $\pm$ 2 100. $\pm$ 2 100. $\pm$ 2 100. $\pm$ 3 100. $\pm$ 2 100. $\pm$ 1 100. $\pm$ 2 100. $\pm$ 3

495.9 [O III] 27. $\pm$ 2 57. $\pm$ 2 39. $\pm$ 2 31. $\pm$ 2 115. $\pm$ 3 22. $\pm$ 2 24. $\pm$ 1 5. $\pm$ 3 25. $\pm$ 3

500.7 [O III] 84. $\pm$ 2 159. $\pm$ 2 120. $\pm$ 2 94. $\pm$ 2 340. $\pm$ 3 65. $\pm$ 2 72. $\pm$ 1.5 15. $\pm$ 2 75. $\pm$ 3

587.6 He I - 7. $\pm$ 2 10. $\pm$ 2 4. $\pm$ 2 - - - - -

630.0 [O I] - - - - 8. $\pm$ 2 - - - -

656.3 H $\alpha$ 281. $\pm$ 2 335. $\pm$ 2 312. $\pm$ 2 281. $\pm$ 2 295. $\pm$ 3 314. $\pm$ 2 295. $\pm$ 3 329. $\pm$ 2 281. $\pm$ 3

658.4 [N II] 7. $\pm$ 2 9. $\pm$ 3 9. $\pm$ 2 11. $\pm$ 2 7. $\pm$ 3 8. $\pm$ 2 10. $\pm$ 3 13. $\pm$ 2 10. $\pm$ 3

671.7 [S II] 18. $\pm$ 2 16. $\pm$ 3 17. $\pm$ 2 17. $\pm$ 2 17. $\pm$ 3 24. $\pm$ 2 26. $\pm$ 2 22. $\pm$ 2 26. $\pm$ 3

673.1 [S II] 14. $\pm$ 2 13. $\pm$ 3 11. $\pm$ 2 15. $\pm$ 2 11. $\pm$ 3 16. $\pm$ 2 16. $\pm$ 2 14. $\pm$ 2 20. $\pm$ 3

713.5 [Ar III] 4. $\pm$ 2 5. $\pm$ 3 5. $\pm$ 2 3. $\pm$ 2 3. $\pm$ 3 6. $\pm$ 2 2. $\pm$ 2 2. $\pm$ 2 1. $\pm$ 3

732.5 [O II] - 13. $\pm$ 3 8. $\pm$ 2 - 14. $\pm$ 3 - - 8. $\pm$ 2 -

906.9 [S III] 5. $\pm$ 2 18. $\pm$ 3 16. $\pm$ 3 7. $\pm$ 5 8. $\pm$ 2 20. $\pm$ 3 - 8. $\pm$ 2 -

953.2 [S III] 14. $\pm$ 2 50. $\pm$ 3 42. $\pm$ 5 18. $\pm$ 5 - - - - -

SexB SHK1 SHK2 SHK3 SHK5 SHK6 SHK7 SHK10 H II H

$c_{\beta }$ 0.0 $\pm$ 0.02 0.13 $\pm$ 0.01 0.30 $\pm$ 0.05 0.16 $\pm$ 0.01 0.30 $\pm$ 0.03 0.12 $\pm$ 0.02 0.29 $\pm$ 0.01 0.15 $\pm$ 0.01

$N_{\rm e}$ (cm^-3) <100 200 $\pm$ 100 <100 <100 <100 300 $\pm$ 100 <100 <100

$T_{\rm e}$ ([O III]) (K) 13 000: 15 000: - 12 000 $\pm$ 2000 - - - <17 000

Ion

372.7 [O II] 181. $\pm$ 7 350. $\pm$ 4 390. $\pm$ 30 182. $\pm$ 8 210. $\pm$ 40 324. $\pm$ 10 413. $\pm$ 6 292. $\pm$ 7

386.8 [Ne III] 9. $\pm$ 3 29. $\pm$ 3 - 17. $\pm$ 4 - - 7. $\pm$ 3 9. $\pm$ 3

388.9 He I, H8 8. $\pm$ 2 26. $\pm$ 2 - 14. $\pm$ 3 - - 23. $\pm$ 2 11. $\pm$ 3

396.7 [Ne III], H7 10. $\pm$ 2 27. $\pm$ 1 - 20. $\pm$ 2 - - 20. $\pm$ 2 12. $\pm$ 3

410.1 H $\delta$ 13. $\pm$ 2 34. $\pm$ 1 - 22. $\pm$ 2 - - 30. $\pm$ 2 19. $\pm$ 2

434.0 H $\gamma$ 27. $\pm$ 2 53. $\pm$ 1 - 38. $\pm$ 2 - - 47. $\pm$ 2 40. $\pm$ 2

436.3 [O III] 2. $\pm$ 2 3. $\pm$ 2 - 3. $\pm$ 2 - - - <1

468.6 He II <1 <1 - <1 - <1 <1 -

486.1 H $\beta$ 100. $\pm$ 3 100. $\pm$ 0.5 100. $\pm$ 9 100. $\pm$ 2 100. $\pm$ 5 100. $\pm$ 4 100. $\pm$ 1 100. $\pm$ 1

495.9 [O III] 50. $\pm$ 3 55. $\pm$ 0.5 17. $\pm$ 7 86. $\pm$ 2 35. $\pm$ 5 12. $\pm$ 4 9. $\pm$ 1 15. $\pm$ 1

500.7 [O III] 147. $\pm$ 3 148. $\pm$ 0.5 52. $\pm$ 7 264. $\pm$ 2 113. $\pm$ 5 30. $\pm$ 4 23. $\pm$ 1 38. $\pm$ 1

587.6 He I - 16. $\pm$ 0.5 - 5. $\pm$ - - - 7. $\pm$ 1

656.3 H $\alpha$ 272. $\pm$ 2 312. $\pm$ 0.5 351. $\pm$ 4 319. $\pm$ 1.5 351. $\pm$ 8 310. $\pm$ 2 350. $\pm$ 0.5 316. $\pm$ 1

658.4 [N II] 5. $\pm$ 2 15. $\pm$ 0.5 25. $\pm$ 4 8. $\pm$ 1 28. $\pm$ 7 23. $\pm$ 2 22. $\pm$ 1 10. $\pm$ 1

667.8 He I - 5.. $\pm$ 0.5 - - - - - -

671.7 [S II] 15. $\pm$ 2 27. $\pm$ 1 59. $\pm$ 4 21. $\pm$ 2 75. $\pm$ 8 29. $\pm$ 3 33. $\pm$ 1 22. $\pm$ 1

673.1 [S II] 9. $\pm$ 2 22. $\pm$ 1 43. $\pm$ 4 15. $\pm$ 2 53. $\pm$ 8 24. $\pm$ 3 21. $\pm$ 1 16. $\pm$ 1

706.5 He I - 4. $\pm$ 1 - - - - - -

713.5 [Ar III] 4. $\pm$ 2 12. $\pm$ 1 - 2. $\pm$ 2 - 6. $\pm$ 3 5. $\pm$ 1 2. $\pm$ 1

732.5 [O II] - 13. $\pm$ 1 - 9. $\pm$ 2 - - 12. $\pm$ 2 9. $\pm$ 1

906.9 [S III] 10. $\pm$ 3 16. $\pm$ 1 - 18. $\pm$ 2 - - 12. $\pm$ 2 8. $\pm$ 2

953.2 [S III] 24. $\pm$ 3 41. $\pm$ 1 - 43. $\pm$ 2 - - 36. $\pm$ 2 21. $\pm$ 2

**Table 3:** Observed line fluxes $F_\lambda$ , on a scale where F(H $\beta$ ) = 100.0, and nebular parameters of the H II regions in Sextans A and Sextans B. Symbols are as in Table 1.
SexA	HSK2	HSK3	HSK7	HSK9	HSK14	HSK16	HSK19	HSK23	HSK24
$c_{\beta }$	0.0 $\pm$ 0.01	0.23 $\pm$ 0.01	0.13 $\pm$ 0.01	0.0 $\pm$ 0.01	0.05 $\pm$ 0.02	0.14 $\pm$ 0.01	0.05 $\pm$ 0.01	0.21 $\pm$ 0.01	0.0 $\pm$ 0.02
$N_{\rm e}$ (cm^-3)	100 $\pm$ 100	200 $\pm$ 100	<100	400 $\pm$ 200	<100	<100	<100	<100	100 $\pm$ 100
$T_{\rm e}$ ([O III]) (K)	<12 000	13 000 $\pm$ 3000	17 000 $\pm$ 4000	14 000:	14 000 $\pm$ 1000	<14 000	<13 000	-	<13 000
Ion
372.7 [O II]	240. $\pm$ 10	126. $\pm$ 10	205. $\pm$ 10	145. $\pm$ 9	145. $\pm$ 16	213. $\pm$ 10	179. $\pm$ 8	194. $\pm$ 8	160. $\pm$ 10
386.8 [Ne III]	11. $\pm$ 5	15. $\pm$ 8	8. $\pm$ 6	10. $\pm$ 6	28. $\pm$ 8	8. $\pm$ 5	15. $\pm$ 5	5. $\pm$ 3	22. $\pm$ 8
388.9 He I, H8	-	-	9. $\pm$ 5	15. $\pm$ 5	21. $\pm$ 7	15. $\pm$ 5	8. $\pm$ 4	10. $\pm$ 3	18. $\pm$ 7
396.7 [Ne III], H7	-	-	14. $\pm$ 3	10:	-	20. $\pm$ 4	17. $\pm$ 3	9. $\pm$ 2	20. $\pm$ 8
410.1 H $\delta$	24. $\pm$ 3	20. $\pm$ 5	25. $\pm$ 3	22. $\pm$ 3	26. $\pm$ 3	21. $\pm$ 2	25. $\pm$ 2	25. $\pm$ 2	28. $\pm$ 8
434.0 H $\gamma$	42. $\pm$ 2	35. $\pm$ 2	46. $\pm$ 3	41. $\pm$ 3	47. $\pm$ 3	46. $\pm$ 2	42. $\pm$ 2	43. $\pm$ 2	47. $\pm$ 5
436.3 [O III]	<1	2 $\pm$ 2	3 $\pm$ 3	2. $\pm$ 3	6. $\pm$ 3	<1	<1	-	<1
468.6 He II	<1	<1	<1	<1	3:	6:	<1	<1	<1
486.1 H $\beta$	100. $\pm$ 2	100. $\pm$ 2	100. $\pm$ 2	100. $\pm$ 2	100. $\pm$ 3	100. $\pm$ 2	100. $\pm$ 1	100. $\pm$ 2	100. $\pm$ 3
495.9 [O III]	27. $\pm$ 2	57. $\pm$ 2	39. $\pm$ 2	31. $\pm$ 2	115. $\pm$ 3	22. $\pm$ 2	24. $\pm$ 1	5. $\pm$ 3	25. $\pm$ 3
500.7 [O III]	84. $\pm$ 2	159. $\pm$ 2	120. $\pm$ 2	94. $\pm$ 2	340. $\pm$ 3	65. $\pm$ 2	72. $\pm$ 1.5	15. $\pm$ 2	75. $\pm$ 3
587.6 He I	-	7. $\pm$ 2	10. $\pm$ 2	4. $\pm$ 2	-	-	-	-	-
630.0 [O I]	-	-	-	-	8. $\pm$ 2	-	-	-	-
656.3 H $\alpha$	281. $\pm$ 2	335. $\pm$ 2	312. $\pm$ 2	281. $\pm$ 2	295. $\pm$ 3	314. $\pm$ 2	295. $\pm$ 3	329. $\pm$ 2	281. $\pm$ 3
658.4 [N II]	7. $\pm$ 2	9. $\pm$ 3	9. $\pm$ 2	11. $\pm$ 2	7. $\pm$ 3	8. $\pm$ 2	10. $\pm$ 3	13. $\pm$ 2	10. $\pm$ 3
671.7 [S II]	18. $\pm$ 2	16. $\pm$ 3	17. $\pm$ 2	17. $\pm$ 2	17. $\pm$ 3	24. $\pm$ 2	26. $\pm$ 2	22. $\pm$ 2	26. $\pm$ 3
673.1 [S II]	14. $\pm$ 2	13. $\pm$ 3	11. $\pm$ 2	15. $\pm$ 2	11. $\pm$ 3	16. $\pm$ 2	16. $\pm$ 2	14. $\pm$ 2	20. $\pm$ 3
713.5 [Ar III]	4. $\pm$ 2	5. $\pm$ 3	5. $\pm$ 2	3. $\pm$ 2	3. $\pm$ 3	6. $\pm$ 2	2. $\pm$ 2	2. $\pm$ 2	1. $\pm$ 3
732.5 [O II]	-	13. $\pm$ 3	8. $\pm$ 2	-	14. $\pm$ 3	-	-	8. $\pm$ 2	-
906.9 [S III]	5. $\pm$ 2	18. $\pm$ 3	16. $\pm$ 3	7. $\pm$ 5	8. $\pm$ 2	20. $\pm$ 3	-	8. $\pm$ 2	-
953.2 [S III]	14. $\pm$ 2	50. $\pm$ 3	42. $\pm$ 5	18. $\pm$ 5	-	-	-	-	-
SexB	SHK1	SHK2	SHK3	SHK5	SHK6	SHK7	SHK10	H II H
$c_{\beta }$	0.0 $\pm$ 0.02	0.13 $\pm$ 0.01	0.30 $\pm$ 0.05	0.16 $\pm$ 0.01	0.30 $\pm$ 0.03	0.12 $\pm$ 0.02	0.29 $\pm$ 0.01	0.15 $\pm$ 0.01
$N_{\rm e}$ (cm^-3)	<100	200 $\pm$ 100	<100	<100	<100	300 $\pm$ 100	<100	<100
$T_{\rm e}$ ([O III]) (K)	13 000:	15 000:	-	12 000 $\pm$ 2000	-	-	-	<17 000
Ion
372.7 [O II]	181. $\pm$ 7	350. $\pm$ 4	390. $\pm$ 30	182. $\pm$ 8	210. $\pm$ 40	324. $\pm$ 10	413. $\pm$ 6	292. $\pm$ 7
386.8 [Ne III]	9. $\pm$ 3	29. $\pm$ 3	-	17. $\pm$ 4	-	-	7. $\pm$ 3	9. $\pm$ 3
388.9 He I, H8	8. $\pm$ 2	26. $\pm$ 2	-	14. $\pm$ 3	-	-	23. $\pm$ 2	11. $\pm$ 3
396.7 [Ne III], H7	10. $\pm$ 2	27. $\pm$ 1	-	20. $\pm$ 2	-	-	20. $\pm$ 2	12. $\pm$ 3
410.1 H $\delta$	13. $\pm$ 2	34. $\pm$ 1	-	22. $\pm$ 2	-	-	30. $\pm$ 2	19. $\pm$ 2
434.0 H $\gamma$	27. $\pm$ 2	53. $\pm$ 1	-	38. $\pm$ 2	-	-	47. $\pm$ 2	40. $\pm$ 2
436.3 [O III]	2. $\pm$ 2	3. $\pm$ 2	-	3. $\pm$ 2	-	-	-	<1
468.6 He II	<1	<1	-	<1	-	<1	<1	-
486.1 H $\beta$	100. $\pm$ 3	100. $\pm$ 0.5	100. $\pm$ 9	100. $\pm$ 2	100. $\pm$ 5	100. $\pm$ 4	100. $\pm$ 1	100. $\pm$ 1
495.9 [O III]	50. $\pm$ 3	55. $\pm$ 0.5	17. $\pm$ 7	86. $\pm$ 2	35. $\pm$ 5	12. $\pm$ 4	9. $\pm$ 1	15. $\pm$ 1
500.7 [O III]	147. $\pm$ 3	148. $\pm$ 0.5	52. $\pm$ 7	264. $\pm$ 2	113. $\pm$ 5	30. $\pm$ 4	23. $\pm$ 1	38. $\pm$ 1
587.6 He I	-	16. $\pm$ 0.5	-	5. $\pm$	-	-	-	7. $\pm$ 1
656.3 H $\alpha$	272. $\pm$ 2	312. $\pm$ 0.5	351. $\pm$ 4	319. $\pm$ 1.5	351. $\pm$ 8	310. $\pm$ 2	350. $\pm$ 0.5	316. $\pm$ 1
658.4 [N II]	5. $\pm$ 2	15. $\pm$ 0.5	25. $\pm$ 4	8. $\pm$ 1	28. $\pm$ 7	23. $\pm$ 2	22. $\pm$ 1	10. $\pm$ 1
667.8 He I	-	5.. $\pm$ 0.5	-	-	-	-	-	-
671.7 [S II]	15. $\pm$ 2	27. $\pm$ 1	59. $\pm$ 4	21. $\pm$ 2	75. $\pm$ 8	29. $\pm$ 3	33. $\pm$ 1	22. $\pm$ 1
673.1 [S II]	9. $\pm$ 2	22. $\pm$ 1	43. $\pm$ 4	15. $\pm$ 2	53. $\pm$ 8	24. $\pm$ 3	21. $\pm$ 1	16. $\pm$ 1
706.5 He I	-	4. $\pm$ 1	-	-	-	-	-	-
713.5 [Ar III]	4. $\pm$ 2	12. $\pm$ 1	-	2. $\pm$ 2	-	6. $\pm$ 3	5. $\pm$ 1	2. $\pm$ 1
732.5 [O II]	-	13. $\pm$ 1	-	9. $\pm$ 2	-	-	12. $\pm$ 2	9. $\pm$ 1
906.9 [S III]	10. $\pm$ 3	16. $\pm$ 1	-	18. $\pm$ 2	-	-	12. $\pm$ 2	8. $\pm$ 2
953.2 [S III]	24. $\pm$ 3	41. $\pm$ 1	-	43. $\pm$ 2	-	-	36. $\pm$ 2	21. $\pm$ 2

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