Table 2 Open in new tab Observed and...

λ (Å)	f(λ)	F(λ)	EW (Å)	I(λ)	F(λ)	EW (Å)	I(λ)
		NGC 6789-A	NGC 6789-B
3726 [O ii]	0.322	896 ± 19	−15.0	979 ± 63	1186 ± 17	−34.9	1277 ± 80
3729 [O ii]	0.322	1241 ± 16	−20.7	1357 ± 84	1744 ± 16	−51.9	1878 ± 116
3835 H9	0.299	37 ± 10	−0.6	40 ± 11	80 ± 4	−3.5	85 ± 7
3868 [Ne iii]	0.291	302 ± 17	−2.8	327 ± 26	153 ± 14	−3.7	164 ± 17
3889 He i+H8	0.286	153 ± 6	−2.6	166 ± 12	146 ± 10	−4.5	156 ± 14
3968 [Ne iii]+H7	0.266	81 ± 8	−1.3	88 ± 10	−	−	−
4102 Hδ	0.229	247 ± 5	−3.9	263 ± 16	248 ± 16	−6.7	261 ± 22
4340 Hγ	0.157	454 ± 11	−7.2	474 ± 28	448 ± 7	−12.4	465 ± 26
4363 [O iii]	0.149	63 ± 3	−0.7	66 ± 5	23 ± 4	−0.4	23 ± 4
4471 He i	0.115	36 ± 4	−0.4	37 ± 5	37 ± 6	−0.7	39 ± 7
4861 Hβ	0.000	1000 ± 10	−17.3	1000 ± 47	1000 ± 12	−29.1	1000 ± 48
4959 [O iii]	−0.026	1240 ± 12	−16.0	1231 ± 57	512 ± 12	−11.4	509 ± 26
5007 [O iii]	−0.038	3801 ± 13	−50.1	3762 ± 167	1492 ± 9	−33.0	1479 ± 66
5876 He i	−0.203	102 ± 14	−1.6	97 ± 14	96 ± 16	−2.3	92 ± 16
6312 [S iii]	−0.264	11 ± 2	−0.2	10 ± 2	16 ± 5	−0.5	16 ± 5
6548 [N ii]	−0.296	28 ± 5	−0.5	26 ± 5	61 ± 9	−1.8	57 ± 8
6563 Hα	−0.298	3038 ± 29	−57.0	2797 ± 38	3003 ± 15	−89.3	2807 ± 20
6584 [N ii]	−0.300	136 ± 10	−2.5	126 ± 9	186 ± 11	−5.6	174 ± 10
6717 [S ii]	−0.318	277 ± 10	−5.0	254 ± 10	314 ± 9	−9.5	292 ± 8
6731 [S ii]	−0.320	188 ± 10	−3.4	172 ± 9	217 ± 10	−6.6	202 ± 9
7136 [Ar iii]	−0.374	112 ± 7	−2.4	101 ± 7	76 ± 7	−2.7	70 ± 7
7319 [O ii]	−0.398	-	-	-	46 ± 6	−1.6	42 ± 6
7330 [O ii]	−0.400	-	-	-	35 ± 4	−1.2	32 ± 4
I(Hβ)(erg s⁻¹ cm⁻²)	2.70e−15	3.19e−15
c(Hβ)	0.12 ± 0.02	0.10 ± 0.02
A(V)	0.26 ± 0.04	0.21 ± 0.04
		NGC 6789-C	NGC 6789-D
3726 [O ii]	0.322	940 ± 13	−29.1	1020 ± 64	1159 ± 26	−15.4	1267 ± 82
3729 [O ii]	0.322	1377 ± 12	−42.4	1494 ± 92	1712 ± 21	−22.5	1871 ± 116
3835 H9	0.299	47 ± 9	−1.4	50 ± 10	-	-	-
3868 [Ne iii]	0.291	300 ± 12	−5.2	323 ± 23	105 ± 9	−0.9	114 ± 12
3889 He i+H8	0.286	169 ± 12	−5.5	182 ± 17	167 ± 20	−2.4	180 ± 24
3968 [Ne iii]+H7	0.266	74 ± 9	−2.3	79 ± 11	-	-	-
4102 Hδ	0.229	246 ± 16	−5.9	261 ± 22	244 ± 7	−3.2	260 ± 16
4340 Hγ	0.157	446 ± 7	−12.4	464 ± 26	444 ± 10	−5.3	464 ± 27
4363 [O iii]	0.149	59 ± 3	−1.3	61 ± 5	24 ± 8	−0.2	25 ± 8
4471 He i	0.115	37 ± 5	−0.7	38 ± 6	36 ± 6	−0.3	37 ± 7
4686 He ii	0.050	26 ± 5	−0.5	26 ± 5	-	-	-
4861 Hβ	0.000	1000 ± 8	−27.1	1000 ± 47	1000 ± 10	−12.1	1000 ± 47
4959 [O iii]	−0.026	1170 ± 9	−26.9	1163 ± 53	607 ± 11	−6.2	602 ± 29
5007 [O iii]	−0.038	3471 ± 11	−75.0	3438 ± 153	1750 ± 12	−16.7	1732 ± 78
5876 He i	−0.203	96 ± 14	−2.8	91 ± 14	104 ± 20	−1.3	98 ± 19
6312 [S iii]	−0.264	19 ± 2	−0.6	18 ± 2	22 ± 6	−0.3	20 ± 5
6548 [N ii]	−0.296	51 ± 11	−1.6	47 ± 10	51 ± 12	−0.8	48 ± 11
6563 Hα	−0.298	3000 ± 23	−92.8	2797 ± 30	3026 ± 16	−46.7	2814 ± 21
6584 [N ii]	−0.300	145 ± 11	−4.5	135 ± 10	149 ± 6	−2.2	138 ± 6
6678 He i	−0.313	27 ± 5	−0.8	25 ± 4	-	-	-
6717 [S ii]	−0.318	307 ± 7	−9.4	285 ± 7	300 ± 17	−4.4	277 ± 16
6731 [S ii]	−0.320	236 ± 8	−7.2	219 ± 8	206 ± 14	−3.0	191 ± 13
7065 He i	−0.364	23 ± 5	−0.7	21 ± 4	-	-	-
7136 [Ar iii]	−0.374	87 ± 11	−2.7	80 ± 10	80 ± 16	−1.3	73 ± 15
7319 [O ii]	−0.398	44 ± 4	−1.4	40 ± 4	-	-	-
7330 [O ii]	−0.400	42 ± 3	−1.3	38 ± 2	-	-	-
I(Hβ)(erg s⁻¹ cm⁻²)	3.93e−15	2.61e−15
c(Hβ)	0.11 ± 0.02	0.12 ± 0.02
A(V)	0.24 ± 0.04	0.26 ± 0.04
		NGC 6789-E
3726 [O ii]	0.322	347 ± 51	−30.5	492 ± 94
3729 [O ii]	0.322	398 ± 25	−28.3	563 ± 77
3868 [Ne iii]	0.291	62 ± 11	−2.2	86 ± 18
4102 Hδ	0.229	145 ± 10	−7.6	186 ± 25
4340 Hγ	0.157	374 ± 9	−11.9	443 ± 48
4363 [O iii]	0.149	20 ± 9	−0.6	23 ± 11
4471 He i	0.115	36 ± 5	−1.7	41 ± 7
4861 Hβ	0.000	1000 ± 13	−35.7	1000 ± 93
4959 [O iii]	−0.026	842 ± 15	−22.9	818 ± 75
5007 [O iii]	−0.038	2358 ± 17	−60.0	2263 ± 201
5876 He i	−0.203	124 ± 23	−4.3	100 ± 20
6548 [N ii]	−0.296	42 ± 14	−1.3	39 ± 13
6563 Hα	−0.298	3090 ± 32	−98.9	2836 ± 42
6584 [N ii]	−0.300	69 ± 12	−2.1	64 ± 11
6717 [S ii]	−0.318	225 ± 23	−8.4	202 ± 21
6731 [S ii]	−0.320	207 ± 18	−8.4	186 ± 17
7136 [Ar iii]	−0.374	80 ± 8	−2.8	68 ± 6
7319 [O ii]	−0.398	27 ± 4	−1.2	22 ± 3
7330 [O ii]	−0.400	20 ± 8	−1.0	17 ± 6
I(Hβ)(erg s⁻¹ cm⁻²)	2.94e−15
c(Hβ)	0.47 ± 0.06
A(V)	1.00 ± 0.10

λ (Å)

f(λ)

F(λ)

EW (Å)

I(λ)

F(λ)

EW (Å)

I(λ)

NGC 6789-A

NGC 6789-B

3726 [O ii]

0.322

896 ± 19

−15.0

979 ± 63

1186 ± 17

−34.9

1277 ± 80

3729 [O ii]

0.322

1241 ± 16

−20.7

1357 ± 84

1744 ± 16

−51.9

1878 ± 116

3835 H9

0.299

37 ± 10

−0.6

40 ± 11

80 ± 4

−3.5

85 ± 7

3868 [Ne iii]

0.291

302 ± 17

−2.8

327 ± 26

153 ± 14

−3.7

164 ± 17

3889 He i+H8

0.286

153 ± 6

−2.6

166 ± 12

146 ± 10

−4.5

156 ± 14

3968 [Ne iii]+H7

0.266

81 ± 8

−1.3

88 ± 10

−

4102 Hδ

0.229

247 ± 5

−3.9

263 ± 16

248 ± 16

−6.7

261 ± 22

4340 Hγ

0.157

454 ± 11

−7.2

474 ± 28

448 ± 7

−12.4

465 ± 26

4363 [O iii]

0.149

63 ± 3

−0.7

66 ± 5

23 ± 4

−0.4

23 ± 4

4471 He i

0.115

36 ± 4

−0.4

37 ± 5

37 ± 6

−0.7

39 ± 7

4861 Hβ

0.000

1000 ± 10

−17.3

1000 ± 47

1000 ± 12

−29.1

1000 ± 48

4959 [O iii]

−0.026

1240 ± 12

−16.0

1231 ± 57

512 ± 12

−11.4

509 ± 26

5007 [O iii]

−0.038

3801 ± 13

−50.1

3762 ± 167

1492 ± 9

−33.0

1479 ± 66

5876 He i

−0.203

102 ± 14

−1.6

97 ± 14

96 ± 16

−2.3

92 ± 16

6312 [S iii]

−0.264

11 ± 2

−0.2

10 ± 2

16 ± 5

−0.5

16 ± 5

6548 [N ii]

−0.296

28 ± 5

−0.5

26 ± 5

61 ± 9

−1.8

57 ± 8

6563 Hα

−0.298

3038 ± 29

−57.0

2797 ± 38

3003 ± 15

−89.3

2807 ± 20

6584 [N ii]

−0.300

136 ± 10

−2.5

126 ± 9

186 ± 11

−5.6

174 ± 10

6717 [S ii]

−0.318

277 ± 10

−5.0

254 ± 10

314 ± 9

−9.5

292 ± 8

6731 [S ii]

−0.320

188 ± 10

−3.4

172 ± 9

217 ± 10

−6.6

202 ± 9

7136 [Ar iii]

−0.374

112 ± 7

−2.4

101 ± 7

76 ± 7

−2.7

70 ± 7

7319 [O ii]

−0.398

46 ± 6

−1.6

42 ± 6

7330 [O ii]

−0.400

35 ± 4

−1.2

32 ± 4

I(Hβ)(erg s⁻¹ cm⁻²)

2.70e−15

3.19e−15

c(Hβ)

0.12 ± 0.02

0.10 ± 0.02

A(V)

0.26 ± 0.04

0.21 ± 0.04

NGC 6789-C

NGC 6789-D

3726 [O ii]

0.322

940 ± 13

−29.1

1020 ± 64

1159 ± 26

−15.4

1267 ± 82

3729 [O ii]

0.322

1377 ± 12

−42.4

1494 ± 92

1712 ± 21

−22.5

1871 ± 116

3835 H9

0.299

47 ± 9

−1.4

50 ± 10

3868 [Ne iii]

0.291

300 ± 12

−5.2

323 ± 23

105 ± 9

−0.9

114 ± 12

3889 He i+H8

0.286

169 ± 12

−5.5

182 ± 17

167 ± 20

−2.4

180 ± 24

3968 [Ne iii]+H7

0.266

74 ± 9

−2.3

79 ± 11

4102 Hδ

0.229

246 ± 16

−5.9

261 ± 22

244 ± 7

−3.2

260 ± 16

4340 Hγ

0.157

446 ± 7

−12.4

464 ± 26

444 ± 10

−5.3

464 ± 27

4363 [O iii]

0.149

59 ± 3

−1.3

61 ± 5

24 ± 8

−0.2

25 ± 8

4471 He i

0.115

37 ± 5

−0.7

38 ± 6

36 ± 6

−0.3

37 ± 7

4686 He ii

0.050

26 ± 5

−0.5

26 ± 5

4861 Hβ

0.000

1000 ± 8

−27.1

1000 ± 47

1000 ± 10

−12.1

1000 ± 47

4959 [O iii]

−0.026

1170 ± 9

−26.9

1163 ± 53

607 ± 11

−6.2

602 ± 29

5007 [O iii]

−0.038

3471 ± 11

−75.0

3438 ± 153

1750 ± 12

−16.7

1732 ± 78

5876 He i

−0.203

96 ± 14

−2.8

91 ± 14

104 ± 20

−1.3

98 ± 19

6312 [S iii]

−0.264

19 ± 2

−0.6

18 ± 2

22 ± 6

−0.3

20 ± 5

6548 [N ii]

−0.296

51 ± 11

−1.6

47 ± 10

51 ± 12

−0.8

48 ± 11

6563 Hα

−0.298

3000 ± 23

−92.8

2797 ± 30

3026 ± 16

−46.7

2814 ± 21

6584 [N ii]

−0.300

145 ± 11

−4.5

135 ± 10

149 ± 6

−2.2

138 ± 6

6678 He i

−0.313

27 ± 5

−0.8

25 ± 4

6717 [S ii]

−0.318

307 ± 7

−9.4

285 ± 7

300 ± 17

−4.4

277 ± 16

6731 [S ii]

−0.320

236 ± 8

−7.2

219 ± 8

206 ± 14

−3.0

191 ± 13

7065 He i

−0.364

23 ± 5

−0.7

21 ± 4

7136 [Ar iii]

−0.374

87 ± 11

−2.7

80 ± 10

80 ± 16

−1.3

73 ± 15

7319 [O ii]

−0.398

44 ± 4

−1.4

40 ± 4

7330 [O ii]

−0.400

42 ± 3

−1.3

38 ± 2

I(Hβ)(erg s⁻¹ cm⁻²)

3.93e−15

2.61e−15

c(Hβ)

0.11 ± 0.02

0.12 ± 0.02

A(V)

0.24 ± 0.04

0.26 ± 0.04

NGC 6789-E

3726 [O ii]

0.322

347 ± 51

−30.5

492 ± 94

3729 [O ii]

0.322

398 ± 25

−28.3

563 ± 77

3868 [Ne iii]

0.291

62 ± 11

−2.2

86 ± 18

4102 Hδ

0.229

145 ± 10

−7.6

186 ± 25

4340 Hγ

0.157

374 ± 9

−11.9

443 ± 48

4363 [O iii]

0.149

20 ± 9

−0.6

23 ± 11

4471 He i

0.115

36 ± 5

−1.7

41 ± 7

4861 Hβ

0.000

1000 ± 13

−35.7

1000 ± 93

4959 [O iii]

−0.026

842 ± 15

−22.9

818 ± 75

5007 [O iii]

−0.038

2358 ± 17

−60.0

2263 ± 201

5876 He i

−0.203

124 ± 23

−4.3

100 ± 20

6548 [N ii]

−0.296

42 ± 14

−1.3

39 ± 13

6563 Hα

−0.298

3090 ± 32

−98.9

2836 ± 42

6584 [N ii]

−0.300

69 ± 12

−2.1

64 ± 11

6717 [S ii]

−0.318

225 ± 23

−8.4

202 ± 21

6731 [S ii]

−0.320

207 ± 18

−8.4

186 ± 17

7136 [Ar iii]

−0.374

80 ± 8

−2.8

68 ± 6

7319 [O ii]

−0.398

27 ± 4

−1.2

22 ± 3

7330 [O ii]

−0.400

20 ± 8

−1.0

17 ± 6

I(Hβ)(erg s⁻¹ cm⁻²)

2.94e−15

c(Hβ)

0.47 ± 0.06

A(V)

1.00 ± 0.10

λ (Å)	f(λ)	F(λ)	EW (Å)	I(λ)	F(λ)	EW (Å)	I(λ)
		NGC 6789-A	NGC 6789-B
3726 [O ii]	0.322	896 ± 19	−15.0	979 ± 63	1186 ± 17	−34.9	1277 ± 80
3729 [O ii]	0.322	1241 ± 16	−20.7	1357 ± 84	1744 ± 16	−51.9	1878 ± 116
3835 H9	0.299	37 ± 10	−0.6	40 ± 11	80 ± 4	−3.5	85 ± 7
3868 [Ne iii]	0.291	302 ± 17	−2.8	327 ± 26	153 ± 14	−3.7	164 ± 17
3889 He i+H8	0.286	153 ± 6	−2.6	166 ± 12	146 ± 10	−4.5	156 ± 14
3968 [Ne iii]+H7	0.266	81 ± 8	−1.3	88 ± 10	−	−	−
4102 Hδ	0.229	247 ± 5	−3.9	263 ± 16	248 ± 16	−6.7	261 ± 22
4340 Hγ	0.157	454 ± 11	−7.2	474 ± 28	448 ± 7	−12.4	465 ± 26
4363 [O iii]	0.149	63 ± 3	−0.7	66 ± 5	23 ± 4	−0.4	23 ± 4
4471 He i	0.115	36 ± 4	−0.4	37 ± 5	37 ± 6	−0.7	39 ± 7
4861 Hβ	0.000	1000 ± 10	−17.3	1000 ± 47	1000 ± 12	−29.1	1000 ± 48
4959 [O iii]	−0.026	1240 ± 12	−16.0	1231 ± 57	512 ± 12	−11.4	509 ± 26
5007 [O iii]	−0.038	3801 ± 13	−50.1	3762 ± 167	1492 ± 9	−33.0	1479 ± 66
5876 He i	−0.203	102 ± 14	−1.6	97 ± 14	96 ± 16	−2.3	92 ± 16
6312 [S iii]	−0.264	11 ± 2	−0.2	10 ± 2	16 ± 5	−0.5	16 ± 5
6548 [N ii]	−0.296	28 ± 5	−0.5	26 ± 5	61 ± 9	−1.8	57 ± 8
6563 Hα	−0.298	3038 ± 29	−57.0	2797 ± 38	3003 ± 15	−89.3	2807 ± 20
6584 [N ii]	−0.300	136 ± 10	−2.5	126 ± 9	186 ± 11	−5.6	174 ± 10
6717 [S ii]	−0.318	277 ± 10	−5.0	254 ± 10	314 ± 9	−9.5	292 ± 8
6731 [S ii]	−0.320	188 ± 10	−3.4	172 ± 9	217 ± 10	−6.6	202 ± 9
7136 [Ar iii]	−0.374	112 ± 7	−2.4	101 ± 7	76 ± 7	−2.7	70 ± 7
7319 [O ii]	−0.398	-	-	-	46 ± 6	−1.6	42 ± 6
7330 [O ii]	−0.400	-	-	-	35 ± 4	−1.2	32 ± 4
I(Hβ)(erg s⁻¹ cm⁻²)	2.70e−15	3.19e−15
c(Hβ)	0.12 ± 0.02	0.10 ± 0.02
A(V)	0.26 ± 0.04	0.21 ± 0.04
		NGC 6789-C	NGC 6789-D
3726 [O ii]	0.322	940 ± 13	−29.1	1020 ± 64	1159 ± 26	−15.4	1267 ± 82
3729 [O ii]	0.322	1377 ± 12	−42.4	1494 ± 92	1712 ± 21	−22.5	1871 ± 116
3835 H9	0.299	47 ± 9	−1.4	50 ± 10	-	-	-
3868 [Ne iii]	0.291	300 ± 12	−5.2	323 ± 23	105 ± 9	−0.9	114 ± 12
3889 He i+H8	0.286	169 ± 12	−5.5	182 ± 17	167 ± 20	−2.4	180 ± 24
3968 [Ne iii]+H7	0.266	74 ± 9	−2.3	79 ± 11	-	-	-
4102 Hδ	0.229	246 ± 16	−5.9	261 ± 22	244 ± 7	−3.2	260 ± 16
4340 Hγ	0.157	446 ± 7	−12.4	464 ± 26	444 ± 10	−5.3	464 ± 27
4363 [O iii]	0.149	59 ± 3	−1.3	61 ± 5	24 ± 8	−0.2	25 ± 8
4471 He i	0.115	37 ± 5	−0.7	38 ± 6	36 ± 6	−0.3	37 ± 7
4686 He ii	0.050	26 ± 5	−0.5	26 ± 5	-	-	-
4861 Hβ	0.000	1000 ± 8	−27.1	1000 ± 47	1000 ± 10	−12.1	1000 ± 47
4959 [O iii]	−0.026	1170 ± 9	−26.9	1163 ± 53	607 ± 11	−6.2	602 ± 29
5007 [O iii]	−0.038	3471 ± 11	−75.0	3438 ± 153	1750 ± 12	−16.7	1732 ± 78
5876 He i	−0.203	96 ± 14	−2.8	91 ± 14	104 ± 20	−1.3	98 ± 19
6312 [S iii]	−0.264	19 ± 2	−0.6	18 ± 2	22 ± 6	−0.3	20 ± 5
6548 [N ii]	−0.296	51 ± 11	−1.6	47 ± 10	51 ± 12	−0.8	48 ± 11
6563 Hα	−0.298	3000 ± 23	−92.8	2797 ± 30	3026 ± 16	−46.7	2814 ± 21
6584 [N ii]	−0.300	145 ± 11	−4.5	135 ± 10	149 ± 6	−2.2	138 ± 6
6678 He i	−0.313	27 ± 5	−0.8	25 ± 4	-	-	-
6717 [S ii]	−0.318	307 ± 7	−9.4	285 ± 7	300 ± 17	−4.4	277 ± 16
6731 [S ii]	−0.320	236 ± 8	−7.2	219 ± 8	206 ± 14	−3.0	191 ± 13
7065 He i	−0.364	23 ± 5	−0.7	21 ± 4	-	-	-
7136 [Ar iii]	−0.374	87 ± 11	−2.7	80 ± 10	80 ± 16	−1.3	73 ± 15
7319 [O ii]	−0.398	44 ± 4	−1.4	40 ± 4	-	-	-
7330 [O ii]	−0.400	42 ± 3	−1.3	38 ± 2	-	-	-
I(Hβ)(erg s⁻¹ cm⁻²)	3.93e−15	2.61e−15
c(Hβ)	0.11 ± 0.02	0.12 ± 0.02
A(V)	0.24 ± 0.04	0.26 ± 0.04
		NGC 6789-E
3726 [O ii]	0.322	347 ± 51	−30.5	492 ± 94
3729 [O ii]	0.322	398 ± 25	−28.3	563 ± 77
3868 [Ne iii]	0.291	62 ± 11	−2.2	86 ± 18
4102 Hδ	0.229	145 ± 10	−7.6	186 ± 25
4340 Hγ	0.157	374 ± 9	−11.9	443 ± 48
4363 [O iii]	0.149	20 ± 9	−0.6	23 ± 11
4471 He i	0.115	36 ± 5	−1.7	41 ± 7
4861 Hβ	0.000	1000 ± 13	−35.7	1000 ± 93
4959 [O iii]	−0.026	842 ± 15	−22.9	818 ± 75
5007 [O iii]	−0.038	2358 ± 17	−60.0	2263 ± 201
5876 He i	−0.203	124 ± 23	−4.3	100 ± 20
6548 [N ii]	−0.296	42 ± 14	−1.3	39 ± 13
6563 Hα	−0.298	3090 ± 32	−98.9	2836 ± 42
6584 [N ii]	−0.300	69 ± 12	−2.1	64 ± 11
6717 [S ii]	−0.318	225 ± 23	−8.4	202 ± 21
6731 [S ii]	−0.320	207 ± 18	−8.4	186 ± 17
7136 [Ar iii]	−0.374	80 ± 8	−2.8	68 ± 6
7319 [O ii]	−0.398	27 ± 4	−1.2	22 ± 3
7330 [O ii]	−0.400	20 ± 8	−1.0	17 ± 6
I(Hβ)(erg s⁻¹ cm⁻²)	2.94e−15
c(Hβ)	0.47 ± 0.06
A(V)	1.00 ± 0.10

λ (Å)

f(λ)

F(λ)

EW (Å)

I(λ)

F(λ)

EW (Å)

I(λ)

NGC 6789-A

NGC 6789-B

3726 [O ii]

0.322

896 ± 19

−15.0

979 ± 63

1186 ± 17

−34.9

1277 ± 80

3729 [O ii]

0.322

1241 ± 16

−20.7

1357 ± 84

1744 ± 16

−51.9

1878 ± 116

3835 H9

0.299

37 ± 10

−0.6

40 ± 11

80 ± 4

−3.5

85 ± 7

3868 [Ne iii]

0.291

302 ± 17

−2.8

327 ± 26

153 ± 14

−3.7

164 ± 17

3889 He i+H8

0.286

153 ± 6

−2.6

166 ± 12

146 ± 10

−4.5

156 ± 14

3968 [Ne iii]+H7

0.266

81 ± 8

−1.3

88 ± 10

−

4102 Hδ

0.229

247 ± 5

−3.9

263 ± 16

248 ± 16

−6.7

261 ± 22

4340 Hγ

0.157

454 ± 11

−7.2

474 ± 28

448 ± 7

−12.4

465 ± 26

4363 [O iii]

0.149

63 ± 3

−0.7

66 ± 5

23 ± 4

−0.4

23 ± 4

4471 He i

0.115

36 ± 4

−0.4

37 ± 5

37 ± 6

−0.7

39 ± 7

4861 Hβ

0.000

1000 ± 10

−17.3

1000 ± 47

1000 ± 12

−29.1

1000 ± 48

4959 [O iii]

−0.026

1240 ± 12

−16.0

1231 ± 57

512 ± 12

−11.4

509 ± 26

5007 [O iii]

−0.038

3801 ± 13

−50.1

3762 ± 167

1492 ± 9

−33.0

1479 ± 66

5876 He i

−0.203

102 ± 14

−1.6

97 ± 14

96 ± 16

−2.3

92 ± 16

6312 [S iii]

−0.264

11 ± 2

−0.2

10 ± 2

16 ± 5

−0.5

16 ± 5

6548 [N ii]

−0.296

28 ± 5

−0.5

26 ± 5

61 ± 9

−1.8

57 ± 8

6563 Hα

−0.298

3038 ± 29

−57.0

2797 ± 38

3003 ± 15

−89.3

2807 ± 20

6584 [N ii]

−0.300

136 ± 10

−2.5

126 ± 9

186 ± 11

−5.6

174 ± 10

6717 [S ii]

−0.318

277 ± 10

−5.0

254 ± 10

314 ± 9

−9.5

292 ± 8

6731 [S ii]

−0.320

188 ± 10

−3.4

172 ± 9

217 ± 10

−6.6

202 ± 9

7136 [Ar iii]

−0.374

112 ± 7

−2.4

101 ± 7

76 ± 7

−2.7

70 ± 7

7319 [O ii]

−0.398

46 ± 6

−1.6

42 ± 6

7330 [O ii]

−0.400

35 ± 4

−1.2

32 ± 4

I(Hβ)(erg s⁻¹ cm⁻²)

2.70e−15

3.19e−15

c(Hβ)

0.12 ± 0.02

0.10 ± 0.02

A(V)

0.26 ± 0.04

0.21 ± 0.04

NGC 6789-C

NGC 6789-D

3726 [O ii]

0.322

940 ± 13

−29.1

1020 ± 64

1159 ± 26

−15.4

1267 ± 82

3729 [O ii]

0.322

1377 ± 12

−42.4

1494 ± 92

1712 ± 21

−22.5

1871 ± 116

3835 H9

0.299

47 ± 9

−1.4

50 ± 10

3868 [Ne iii]

0.291

300 ± 12

−5.2

323 ± 23

105 ± 9

−0.9

114 ± 12

3889 He i+H8

0.286

169 ± 12

−5.5

182 ± 17

167 ± 20

−2.4

180 ± 24

3968 [Ne iii]+H7

0.266

74 ± 9

−2.3

79 ± 11

4102 Hδ

0.229

246 ± 16

−5.9

261 ± 22

244 ± 7

−3.2

260 ± 16

4340 Hγ

0.157

446 ± 7

−12.4

464 ± 26

444 ± 10

−5.3

464 ± 27

4363 [O iii]

0.149

59 ± 3

−1.3

61 ± 5

24 ± 8

−0.2

25 ± 8

4471 He i

0.115

37 ± 5

−0.7

38 ± 6

36 ± 6

−0.3

37 ± 7

4686 He ii

0.050

26 ± 5

−0.5

26 ± 5

4861 Hβ

0.000

1000 ± 8

−27.1

1000 ± 47

1000 ± 10

−12.1

1000 ± 47

4959 [O iii]

−0.026

1170 ± 9

−26.9

1163 ± 53

607 ± 11

−6.2

602 ± 29

5007 [O iii]

−0.038

3471 ± 11

−75.0

3438 ± 153

1750 ± 12

−16.7

1732 ± 78

5876 He i

−0.203

96 ± 14

−2.8

91 ± 14

104 ± 20

−1.3

98 ± 19

6312 [S iii]

−0.264

19 ± 2

−0.6

18 ± 2

22 ± 6

−0.3

20 ± 5

6548 [N ii]

−0.296

51 ± 11

−1.6

47 ± 10

51 ± 12

−0.8

48 ± 11

6563 Hα

−0.298

3000 ± 23

−92.8

2797 ± 30

3026 ± 16

−46.7

2814 ± 21

6584 [N ii]

−0.300

145 ± 11

−4.5

135 ± 10

149 ± 6

−2.2

138 ± 6

6678 He i

−0.313

27 ± 5

−0.8

25 ± 4

6717 [S ii]

−0.318

307 ± 7

−9.4

285 ± 7

300 ± 17

−4.4

277 ± 16

6731 [S ii]

−0.320

236 ± 8

−7.2

219 ± 8

206 ± 14

−3.0

191 ± 13

7065 He i

−0.364

23 ± 5

−0.7

21 ± 4

7136 [Ar iii]

−0.374

87 ± 11

−2.7

80 ± 10

80 ± 16

−1.3

73 ± 15

7319 [O ii]

−0.398

44 ± 4

−1.4

40 ± 4

7330 [O ii]

−0.400

42 ± 3

−1.3

38 ± 2

I(Hβ)(erg s⁻¹ cm⁻²)

3.93e−15

2.61e−15

c(Hβ)

0.11 ± 0.02

0.12 ± 0.02

A(V)

0.24 ± 0.04

0.26 ± 0.04

NGC 6789-E

3726 [O ii]

0.322

347 ± 51

−30.5

492 ± 94

3729 [O ii]

0.322

398 ± 25

−28.3

563 ± 77

3868 [Ne iii]

0.291

62 ± 11

−2.2

86 ± 18

4102 Hδ

0.229

145 ± 10

−7.6

186 ± 25

4340 Hγ

0.157

374 ± 9

−11.9

443 ± 48

4363 [O iii]

0.149

20 ± 9

−0.6

23 ± 11

4471 He i

0.115

36 ± 5

−1.7

41 ± 7

4861 Hβ

0.000

1000 ± 13

−35.7

1000 ± 93

4959 [O iii]

−0.026

842 ± 15

−22.9

818 ± 75

5007 [O iii]

−0.038

2358 ± 17

−60.0

2263 ± 201

5876 He i

−0.203

124 ± 23

−4.3

100 ± 20

6548 [N ii]

−0.296

42 ± 14

−1.3

39 ± 13

6563 Hα

−0.298

3090 ± 32

−98.9

2836 ± 42

6584 [N ii]

−0.300

69 ± 12

−2.1

64 ± 11

6717 [S ii]

−0.318

225 ± 23

−8.4

202 ± 21

6731 [S ii]

−0.320

207 ± 18

−8.4

186 ± 17

7136 [Ar iii]

−0.374

80 ± 8

−2.8

68 ± 6

7319 [O ii]

−0.398

27 ± 4

−1.2

22 ± 3

7330 [O ii]

−0.400

20 ± 8

−1.0

17 ± 6

I(Hβ)(erg s⁻¹ cm⁻²)

2.94e−15

c(Hβ)

0.47 ± 0.06

A(V)

1.00 ± 0.10

Table 2

Open in new tab

Observed and reddening-corrected relative line intensities [F(Hβ) =I(Hβ) = 1000] with their corresponding errors for the five knots. The adopted reddening curve, f(λ) (normalized to Hβ), the equivalent width of the emission lines, the extinction-corrected Hβ intensity, the reddening constant c(Hβ) and the corresponding A(V) are also given.

λ (Å)	f(λ)	F(λ)	EW (Å)	I(λ)	F(λ)	EW (Å)	I(λ)
		NGC 6789-A			NGC 6789-B
3726 [O ii]	0.322	896 ± 19	−15.0	979 ± 63	1186 ± 17	−34.9	1277 ± 80
3729 [O ii]	0.322	1241 ± 16	−20.7	1357 ± 84	1744 ± 16	−51.9	1878 ± 116
3835 H9	0.299	37 ± 10	−0.6	40 ± 11	80 ± 4	−3.5	85 ± 7
3868 [Ne iii]	0.291	302 ± 17	−2.8	327 ± 26	153 ± 14	−3.7	164 ± 17
3889 He i+H8	0.286	153 ± 6	−2.6	166 ± 12	146 ± 10	−4.5	156 ± 14
3968 [Ne iii]+H7	0.266	81 ± 8	−1.3	88 ± 10	−	−	−
4102 Hδ	0.229	247 ± 5	−3.9	263 ± 16	248 ± 16	−6.7	261 ± 22
4340 Hγ	0.157	454 ± 11	−7.2	474 ± 28	448 ± 7	−12.4	465 ± 26
4363 [O iii]	0.149	63 ± 3	−0.7	66 ± 5	23 ± 4	−0.4	23 ± 4
4471 He i	0.115	36 ± 4	−0.4	37 ± 5	37 ± 6	−0.7	39 ± 7
4861 Hβ	0.000	1000 ± 10	−17.3	1000 ± 47	1000 ± 12	−29.1	1000 ± 48
4959 [O iii]	−0.026	1240 ± 12	−16.0	1231 ± 57	512 ± 12	−11.4	509 ± 26
5007 [O iii]	−0.038	3801 ± 13	−50.1	3762 ± 167	1492 ± 9	−33.0	1479 ± 66
5876 He i	−0.203	102 ± 14	−1.6	97 ± 14	96 ± 16	−2.3	92 ± 16
6312 [S iii]	−0.264	11 ± 2	−0.2	10 ± 2	16 ± 5	−0.5	16 ± 5
6548 [N ii]	−0.296	28 ± 5	−0.5	26 ± 5	61 ± 9	−1.8	57 ± 8
6563 Hα	−0.298	3038 ± 29	−57.0	2797 ± 38	3003 ± 15	−89.3	2807 ± 20
6584 [N ii]	−0.300	136 ± 10	−2.5	126 ± 9	186 ± 11	−5.6	174 ± 10
6717 [S ii]	−0.318	277 ± 10	−5.0	254 ± 10	314 ± 9	−9.5	292 ± 8
6731 [S ii]	−0.320	188 ± 10	−3.4	172 ± 9	217 ± 10	−6.6	202 ± 9
7136 [Ar iii]	−0.374	112 ± 7	−2.4	101 ± 7	76 ± 7	−2.7	70 ± 7
7319 [O ii]	−0.398	-	-	-	46 ± 6	−1.6	42 ± 6
7330 [O ii]	−0.400	-	-	-	35 ± 4	−1.2	32 ± 4
I(Hβ)(erg s⁻¹ cm⁻²)	2.70e−15			3.19e−15
c(Hβ)	0.12 ± 0.02			0.10 ± 0.02
A(V)	0.26 ± 0.04			0.21 ± 0.04
		NGC 6789-C			NGC 6789-D
3726 [O ii]	0.322	940 ± 13	−29.1	1020 ± 64	1159 ± 26	−15.4	1267 ± 82
3729 [O ii]	0.322	1377 ± 12	−42.4	1494 ± 92	1712 ± 21	−22.5	1871 ± 116
3835 H9	0.299	47 ± 9	−1.4	50 ± 10	-	-	-
3868 [Ne iii]	0.291	300 ± 12	−5.2	323 ± 23	105 ± 9	−0.9	114 ± 12
3889 He i+H8	0.286	169 ± 12	−5.5	182 ± 17	167 ± 20	−2.4	180 ± 24
3968 [Ne iii]+H7	0.266	74 ± 9	−2.3	79 ± 11	-	-	-
4102 Hδ	0.229	246 ± 16	−5.9	261 ± 22	244 ± 7	−3.2	260 ± 16
4340 Hγ	0.157	446 ± 7	−12.4	464 ± 26	444 ± 10	−5.3	464 ± 27
4363 [O iii]	0.149	59 ± 3	−1.3	61 ± 5	24 ± 8	−0.2	25 ± 8
4471 He i	0.115	37 ± 5	−0.7	38 ± 6	36 ± 6	−0.3	37 ± 7
4686 He ii	0.050	26 ± 5	−0.5	26 ± 5	-	-	-
4861 Hβ	0.000	1000 ± 8	−27.1	1000 ± 47	1000 ± 10	−12.1	1000 ± 47
4959 [O iii]	−0.026	1170 ± 9	−26.9	1163 ± 53	607 ± 11	−6.2	602 ± 29
5007 [O iii]	−0.038	3471 ± 11	−75.0	3438 ± 153	1750 ± 12	−16.7	1732 ± 78
5876 He i	−0.203	96 ± 14	−2.8	91 ± 14	104 ± 20	−1.3	98 ± 19
6312 [S iii]	−0.264	19 ± 2	−0.6	18 ± 2	22 ± 6	−0.3	20 ± 5
6548 [N ii]	−0.296	51 ± 11	−1.6	47 ± 10	51 ± 12	−0.8	48 ± 11
6563 Hα	−0.298	3000 ± 23	−92.8	2797 ± 30	3026 ± 16	−46.7	2814 ± 21
6584 [N ii]	−0.300	145 ± 11	−4.5	135 ± 10	149 ± 6	−2.2	138 ± 6
6678 He i	−0.313	27 ± 5	−0.8	25 ± 4	-	-	-
6717 [S ii]	−0.318	307 ± 7	−9.4	285 ± 7	300 ± 17	−4.4	277 ± 16
6731 [S ii]	−0.320	236 ± 8	−7.2	219 ± 8	206 ± 14	−3.0	191 ± 13
7065 He i	−0.364	23 ± 5	−0.7	21 ± 4	-	-	-
7136 [Ar iii]	−0.374	87 ± 11	−2.7	80 ± 10	80 ± 16	−1.3	73 ± 15
7319 [O ii]	−0.398	44 ± 4	−1.4	40 ± 4	-	-	-
7330 [O ii]	−0.400	42 ± 3	−1.3	38 ± 2	-	-	-
I(Hβ)(erg s⁻¹ cm⁻²)	3.93e−15			2.61e−15
c(Hβ)	0.11 ± 0.02			0.12 ± 0.02
A(V)	0.24 ± 0.04			0.26 ± 0.04
		NGC 6789-E
3726 [O ii]	0.322	347 ± 51	−30.5	492 ± 94
3729 [O ii]	0.322	398 ± 25	−28.3	563 ± 77
3868 [Ne iii]	0.291	62 ± 11	−2.2	86 ± 18
4102 Hδ	0.229	145 ± 10	−7.6	186 ± 25
4340 Hγ	0.157	374 ± 9	−11.9	443 ± 48
4363 [O iii]	0.149	20 ± 9	−0.6	23 ± 11
4471 He i	0.115	36 ± 5	−1.7	41 ± 7
4861 Hβ	0.000	1000 ± 13	−35.7	1000 ± 93
4959 [O iii]	−0.026	842 ± 15	−22.9	818 ± 75
5007 [O iii]	−0.038	2358 ± 17	−60.0	2263 ± 201
5876 He i	−0.203	124 ± 23	−4.3	100 ± 20
6548 [N ii]	−0.296	42 ± 14	−1.3	39 ± 13
6563 Hα	−0.298	3090 ± 32	−98.9	2836 ± 42
6584 [N ii]	−0.300	69 ± 12	−2.1	64 ± 11
6717 [S ii]	−0.318	225 ± 23	−8.4	202 ± 21
6731 [S ii]	−0.320	207 ± 18	−8.4	186 ± 17
7136 [Ar iii]	−0.374	80 ± 8	−2.8	68 ± 6
7319 [O ii]	−0.398	27 ± 4	−1.2	22 ± 3
7330 [O ii]	−0.400	20 ± 8	−1.0	17 ± 6
I(Hβ)(erg s⁻¹ cm⁻²)	2.94e−15
c(Hβ)	0.47 ± 0.06
A(V)	1.00 ± 0.10

λ (Å)	f(λ)	F(λ)	EW (Å)	I(λ)	F(λ)	EW (Å)	I(λ)
		NGC 6789-A			NGC 6789-B
3726 [O ii]	0.322	896 ± 19	−15.0	979 ± 63	1186 ± 17	−34.9	1277 ± 80
3729 [O ii]	0.322	1241 ± 16	−20.7	1357 ± 84	1744 ± 16	−51.9	1878 ± 116
3835 H9	0.299	37 ± 10	−0.6	40 ± 11	80 ± 4	−3.5	85 ± 7
3868 [Ne iii]	0.291	302 ± 17	−2.8	327 ± 26	153 ± 14	−3.7	164 ± 17
3889 He i+H8	0.286	153 ± 6	−2.6	166 ± 12	146 ± 10	−4.5	156 ± 14
3968 [Ne iii]+H7	0.266	81 ± 8	−1.3	88 ± 10	−	−	−
4102 Hδ	0.229	247 ± 5	−3.9	263 ± 16	248 ± 16	−6.7	261 ± 22
4340 Hγ	0.157	454 ± 11	−7.2	474 ± 28	448 ± 7	−12.4	465 ± 26
4363 [O iii]	0.149	63 ± 3	−0.7	66 ± 5	23 ± 4	−0.4	23 ± 4
4471 He i	0.115	36 ± 4	−0.4	37 ± 5	37 ± 6	−0.7	39 ± 7
4861 Hβ	0.000	1000 ± 10	−17.3	1000 ± 47	1000 ± 12	−29.1	1000 ± 48
4959 [O iii]	−0.026	1240 ± 12	−16.0	1231 ± 57	512 ± 12	−11.4	509 ± 26
5007 [O iii]	−0.038	3801 ± 13	−50.1	3762 ± 167	1492 ± 9	−33.0	1479 ± 66
5876 He i	−0.203	102 ± 14	−1.6	97 ± 14	96 ± 16	−2.3	92 ± 16
6312 [S iii]	−0.264	11 ± 2	−0.2	10 ± 2	16 ± 5	−0.5	16 ± 5
6548 [N ii]	−0.296	28 ± 5	−0.5	26 ± 5	61 ± 9	−1.8	57 ± 8
6563 Hα	−0.298	3038 ± 29	−57.0	2797 ± 38	3003 ± 15	−89.3	2807 ± 20
6584 [N ii]	−0.300	136 ± 10	−2.5	126 ± 9	186 ± 11	−5.6	174 ± 10
6717 [S ii]	−0.318	277 ± 10	−5.0	254 ± 10	314 ± 9	−9.5	292 ± 8
6731 [S ii]	−0.320	188 ± 10	−3.4	172 ± 9	217 ± 10	−6.6	202 ± 9
7136 [Ar iii]	−0.374	112 ± 7	−2.4	101 ± 7	76 ± 7	−2.7	70 ± 7
7319 [O ii]	−0.398	-	-	-	46 ± 6	−1.6	42 ± 6
7330 [O ii]	−0.400	-	-	-	35 ± 4	−1.2	32 ± 4
I(Hβ)(erg s⁻¹ cm⁻²)	2.70e−15			3.19e−15
c(Hβ)	0.12 ± 0.02			0.10 ± 0.02
A(V)	0.26 ± 0.04			0.21 ± 0.04
		NGC 6789-C			NGC 6789-D
3726 [O ii]	0.322	940 ± 13	−29.1	1020 ± 64	1159 ± 26	−15.4	1267 ± 82
3729 [O ii]	0.322	1377 ± 12	−42.4	1494 ± 92	1712 ± 21	−22.5	1871 ± 116
3835 H9	0.299	47 ± 9	−1.4	50 ± 10	-	-	-
3868 [Ne iii]	0.291	300 ± 12	−5.2	323 ± 23	105 ± 9	−0.9	114 ± 12
3889 He i+H8	0.286	169 ± 12	−5.5	182 ± 17	167 ± 20	−2.4	180 ± 24
3968 [Ne iii]+H7	0.266	74 ± 9	−2.3	79 ± 11	-	-	-
4102 Hδ	0.229	246 ± 16	−5.9	261 ± 22	244 ± 7	−3.2	260 ± 16
4340 Hγ	0.157	446 ± 7	−12.4	464 ± 26	444 ± 10	−5.3	464 ± 27
4363 [O iii]	0.149	59 ± 3	−1.3	61 ± 5	24 ± 8	−0.2	25 ± 8
4471 He i	0.115	37 ± 5	−0.7	38 ± 6	36 ± 6	−0.3	37 ± 7
4686 He ii	0.050	26 ± 5	−0.5	26 ± 5	-	-	-
4861 Hβ	0.000	1000 ± 8	−27.1	1000 ± 47	1000 ± 10	−12.1	1000 ± 47
4959 [O iii]	−0.026	1170 ± 9	−26.9	1163 ± 53	607 ± 11	−6.2	602 ± 29
5007 [O iii]	−0.038	3471 ± 11	−75.0	3438 ± 153	1750 ± 12	−16.7	1732 ± 78
5876 He i	−0.203	96 ± 14	−2.8	91 ± 14	104 ± 20	−1.3	98 ± 19
6312 [S iii]	−0.264	19 ± 2	−0.6	18 ± 2	22 ± 6	−0.3	20 ± 5
6548 [N ii]	−0.296	51 ± 11	−1.6	47 ± 10	51 ± 12	−0.8	48 ± 11
6563 Hα	−0.298	3000 ± 23	−92.8	2797 ± 30	3026 ± 16	−46.7	2814 ± 21
6584 [N ii]	−0.300	145 ± 11	−4.5	135 ± 10	149 ± 6	−2.2	138 ± 6
6678 He i	−0.313	27 ± 5	−0.8	25 ± 4	-	-	-
6717 [S ii]	−0.318	307 ± 7	−9.4	285 ± 7	300 ± 17	−4.4	277 ± 16
6731 [S ii]	−0.320	236 ± 8	−7.2	219 ± 8	206 ± 14	−3.0	191 ± 13
7065 He i	−0.364	23 ± 5	−0.7	21 ± 4	-	-	-
7136 [Ar iii]	−0.374	87 ± 11	−2.7	80 ± 10	80 ± 16	−1.3	73 ± 15
7319 [O ii]	−0.398	44 ± 4	−1.4	40 ± 4	-	-	-
7330 [O ii]	−0.400	42 ± 3	−1.3	38 ± 2	-	-	-
I(Hβ)(erg s⁻¹ cm⁻²)	3.93e−15			2.61e−15
c(Hβ)	0.11 ± 0.02			0.12 ± 0.02
A(V)	0.24 ± 0.04			0.26 ± 0.04
		NGC 6789-E
3726 [O ii]	0.322	347 ± 51	−30.5	492 ± 94
3729 [O ii]	0.322	398 ± 25	−28.3	563 ± 77
3868 [Ne iii]	0.291	62 ± 11	−2.2	86 ± 18
4102 Hδ	0.229	145 ± 10	−7.6	186 ± 25
4340 Hγ	0.157	374 ± 9	−11.9	443 ± 48
4363 [O iii]	0.149	20 ± 9	−0.6	23 ± 11
4471 He i	0.115	36 ± 5	−1.7	41 ± 7
4861 Hβ	0.000	1000 ± 13	−35.7	1000 ± 93
4959 [O iii]	−0.026	842 ± 15	−22.9	818 ± 75
5007 [O iii]	−0.038	2358 ± 17	−60.0	2263 ± 201
5876 He i	−0.203	124 ± 23	−4.3	100 ± 20
6548 [N ii]	−0.296	42 ± 14	−1.3	39 ± 13
6563 Hα	−0.298	3090 ± 32	−98.9	2836 ± 42
6584 [N ii]	−0.300	69 ± 12	−2.1	64 ± 11
6717 [S ii]	−0.318	225 ± 23	−8.4	202 ± 21
6731 [S ii]	−0.320	207 ± 18	−8.4	186 ± 17
7136 [Ar iii]	−0.374	80 ± 8	−2.8	68 ± 6
7319 [O ii]	−0.398	27 ± 4	−1.2	22 ± 3
7330 [O ii]	−0.400	20 ± 8	−1.0	17 ± 6
I(Hβ)(erg s⁻¹ cm⁻²)	2.94e−15
c(Hβ)	0.47 ± 0.06
A(V)	1.00 ± 0.10

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