Open Access

Table A.2

Observed velocity-integrated line intensities of neutral counterparts of molecular anions in interstellar clouds.

Species Transition Frequency (MHz) Telescope Reference
TMC-1 CP


C6H 2Π3/2 J = 15/2 − 13/2 a 20792.907 133(24)b GBT Sakai et al. (2007)
2Π3/2 J = 15/2 − 13/2 b 20794.475 112(22)b GBT Sakai et al. (2007)
2Π3/2 J = 21/2 − 19/2 a 29109.658 332.4(420)b GBT Cordiner et al. (2013)
2Π3/2 J = 23/2 − 21/2 a 31881.860 175.6(176) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 173.5(175) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 158.9(160) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 b 34658.383 158.5(160) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 141.5(180) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 141.1(175) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 a 40198.323 119.3(149) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 118.6(147) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 93.4(106) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 93.3(106) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 a 45742.519 73.0(98) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 b 45750.052 73.4(99) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 a 48514.584 52.6(73) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 b 48523.044 52.2(70) Yebes 40 m This work

C4H N = 2 − 1 J = 3/2 − 1/2 19054.476 411.3(418)b GBT Cordiner et al. (2013)
N = 4 − 3 J = 9/2 − 7/2 38049.654 1369(138) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 38088.461 1007(102) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 47566.792 1094(111) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 47605.496 864(87) Yebes 40 m This work
N = 9 − 8 J = 19/2 − 17/2 85634.010 417(53) IRAM 30 m Agúndez et al. (2008)
N = 9 − 8 J = 17/2 − 15/2 85672.580 386(49) IRAM 30 m Agúndez et al. (2008)
N = 10 − 9 J = 21/2 − 19/2 95150.393 251(26) IRAM 30 m This work
N = 10 − 9 J = 19/2 − 17/2 95188.947 243(26) IRAM 30 m This work
N = 11 − 10 J = 23/2 − 21/2 104666.568 111(12) IRAM 30 m This work
N = 11 − 10 J = 21/2 − 19/2 104705.108 105(13) IRAM 30 m This work
N = 12 − 11 J = 25/2 − 23/2 114182.523 60(8) IRAM 30 m This work
N = 12 − 11 J = 23/2 − 21/2 114221.023 47(6) IRAM 30 m This work

C8H 2Π3/2 J = 53/2 − 51/2 a 31093.035 6.0(7) Yebes 40 m This work
2Π3/2 J = 53/2 − 51/2 b 31093.415 4.4(6) Yebes 40 m This work
2Π3/2 J = 55/2 − 53/2 a 32266.325 4.3(6) Yebes 40 m This work
2Π3/2 J = 55/2 − 53/2 b 32266.735 4.2(6) Yebes 40 m This work
2Π3/2 J = 57/2 − 55/2 a 33439.612 3.5(5) Yebes 40 m This work
2Π3/2 J = 57/2 − 55/2 b 33440.052 3.4(6) Yebes 40 m This work
2Π3/2 J = 59/2 − 57/2 b 34613.367 2.7(3) Yebes 40 m This work
2Π3/2 J = 61/2 − 59/2 a 35786.176 3.0(4) Yebes 40 m This work
2Π3/2 J = 61/2 − 59/2 b 35786.679 2.4(3) Yebes 40 m This work
2Π3/2 J = 63/2 − 61/2 a 36959.452 2.3(3) Yebes 40 m This work
2Π3/2 J = 63/2 − 61/2 b 36959.989 2.2(3) Yebes 40 m This work
2Π3/2 J = 65/2 − 63/2 a 38132.725 1.7(2) Yebes 40 m This work
2Π3/2 J = 65/2 − 63/2 b 38133.297 1.5(2) Yebes 40 m This work
2Π3/2 J = 67/2 − 65/2 a 39305.995 1.4(2) Yebes 40 m This work
2Π3/2 J = 67/2 − 65/2 b 39306.602 1.4(2) Yebes 40 m This work
2Π3/2 J = 69/2 − 67/2 a 40479.260 1.2(2) Yebes 40 m This work
2Π3/2 J = 69/2 − 67/2 b 40479.904 1.2(2) Yebes 40 m This work
2Π3/2 J = 71/2 − 69/2 a 41652.522 0.8(1) Yebes 40 m This work
2Π3/2 J = 71/2 − 69/2 b 41653.203 0.9(1) Yebes 40 m This work
2Π3/2 J = 73/2 − 71/2 a 42825.779 0.7(1) Yebes 40 m This work
2Π3/2 J = 73/2 − 71/2 b 42826.499 0.7(1) Yebes 40 m This work

C3N N = 4 − 3 J = 9/2 − 7/2 39571.347 332(34) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 39590.181 240(25) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 49466.421 244(25) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 49485.224 198(20) Yebes 40 m This work
N = 9 − 8 J = 19/2 − 17/2 89045.583 64.2(73) IRAM 30 m This work
N = 9 − 8 J = 17/2 − 15/2 89064.347 58.6(68) IRAM 30 m This work
N = 10 − 9 J = 21/2 − 19/2 98940.087 28.1(36) IRAM 30 m This work
N = 10 − 9 J = 19/2 − 17/2 98958.770 22.7(30) IRAM 30 m This work
N = 11 − 10 J = 23/2 − 21/2 108834.254 11.6(24) IRAM 30 m This work
N = 11 − 10 J = 21/2 − 19/2 108853.012 21.2(35) IRAM 30 m This work

C5N N = 12 − 11 J = 25/2 − 23/2 33668.234 5.6(7) Yebes 40 m This work
N = 12 − 11 J = 23/2 − 21/2 33678.966 5.9(7) Yebes 40 m This work
N = 13 − 12 J = 27/2 − 25/2 36474.308 5.8(7) Yebes 40 m This work
N = 13 − 12 J = 25/2 − 23/2 36485.042 5.5(7) Yebes 40 m This work
N = 14 − 13 J = 29/2 − 27/2 39280.369 5.1(7) Yebes 40 m This work
N = 14 − 13 J = 27/2 − 25/2 39291.105 5.0(7) Yebes 40 m This work
N = 15 − 14 J = 31/2 − 29/2 42086.415 4.7(6) Yebes 40 m This work
N = 15 − 14 J = 29/2 − 27/2 42097.151 4.4(6) Yebes 40 m This work
N = 16 − 15 J = 33/2 − 31/2 44892.444 4.6(6) Yebes 40 m This work
N = 16 − 15 J = 31/2 − 29/2 44903.182 4.4(6) Yebes 40 m This work
N = 17 − 16 J = 35/2 − 33/2 47698.457 3.7(5) Yebes 40 m This work
N = 17 − 16 J = 33/2 − 31/2 47709.196 3.4(5) Yebes 40 m This work


Lupus-1A


C6H 2Π3/2 J = 15/2 − 13/2 a 20792.907 114(14)b GBT Sakai et al. (2010)
2Π3/2 J = 15/2 − 13/2 b 20794.475 131(16)b GBT Sakai et al. (2010)
2Π3/2 J = 23/2 − 21/2 a 31881.860 150.3(166) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 153.1(163) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 151.6(161) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 b 34658.383 150.0(159) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 140.3(143) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 141.0(148) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 a 40198.323 126.2(134) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 124.8(130) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 115.5(123) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 114.9(123) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 a 45742.519 90.7(125) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 b 45750.052 91.3(128) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 a 48514.584 73.6(109) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 b 48523.044 66.9(103) Yebes 40 m This work

C4H N = 4 − 3 J = 9/2 − 7/2 38049.654 1219(123) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 38088.461 921(94) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 47566.792 1123(114) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 47605.496 846(86) Yebes 40 m This work
N = 8 − 7 J = 17/2 − 15/2 76117.439 1124(114) IRAM 30 m This work
N = 8 − 7 J = 15/2 − 13/2 76156.028 1024(104) IRAM 30 m This work
N = 9 − 8 J = 19/2 − 17/2 85634.010 779(83) IRAM 30 m This work
N = 9 − 8 J = 17/2 − 15/2 85672.580 730(77) IRAM 30 m This work
N = 11 − 10 J = 23/2 − 21/2 104666.568 349(39) IRAM 30 m This work
N = 11 − 10 J = 21/2 − 19/2 104705.108 334(38) IRAM 30 m This work

C8H 2Π3/2 J = 33/2 − 31/2 a 19359.975 10(2)b GBT Sakai et al. (2010)
2Π3/2 J = 33/2 − 31/2 b 19360.123 9(2)b GBT Sakai et al. (2010)

C3N N = 4 − 3 J = 9/2 − 7/2 39571.347 251(30) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 39590.181 175(19) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 49466.421 177(19) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 49485.224 138(15) Yebes 40 m This work
N = 9 − 8 J = 19/2 − 17/2 89045.583 141.5(150) IRAM 30 m This work
N = 9 − 8 J = 17/2 − 15/2 89064.347 126.7(136) IRAM 30 m This work
N = 10 − 9 J = 21/2 − 19/2 98940.087 74.6(83) IRAM 30 m This work
N = 10 − 9 J = 19/2 − 17/2 98958.770 66.0(74) IRAM 30 m This work

C5N N = 12 − 11 J = 25/2 − 23/2 33668.234 4.5(12) Yebes 40 m This work
N = 12 − 11 J = 23/2 − 21/2 33678.966 7.0(14) Yebes 40 m This work
N = 13 − 12 J = 27/2 − 25/2 36474.308 4.8(11) Yebes 40 m This work
N = 13 − 12 J = 25/2 − 23/2 36485.042 5.7(11) Yebes 40 m This work
N = 14 − 13 J = 29/2 − 27/2 39280.369 7.8(24) Yebes 40 m This work
N = 14 − 13 J = 27/2 − 25/2 39291.105 5.7(15) Yebes 40 m This work
N = 15 − 14 J = 31/2 − 29/2 42086.415 4.1(9) Yebes 40 m This work
N = 15 − 14 J = 29/2 − 27/2 42097.151 4.8(11) Yebes 40 m This work
N = 16 − 15 J = 33/2 − 31/2 44892.444 3.2(9) Yebes 40 m This work
N = 16 − 15 J = 31/2 − 29/2 44903.182 1.8(8)d Yebes 40 m This work


L1527


C6H 2Π3/2 J = 15/2 − 13/2 a 20792.907 24(5)b GBT Sakai et al. (2007)
2Π3/2 J = 15/2 − 13/2 b 20794.475 21(5)b GBT Sakai et al. (2007)
2Π3/2 J = 23/2 − 21/2 a 31881.860 34.8(75) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 26.0(59) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 29.3(34) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 b 34658.383 31.8(37) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 31.7(46) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 32.2(51) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 a 40198.323 32.7(50) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 32.3(48) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 30.2(47) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 31.1(49) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 a 45742.519 30.5(48) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 b 45750.052 31.3(49) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 a 48514.584 27.3(48) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 b 48523.044 26.9(47) Yebes 40 m This work

C4H N = 4 − 3 J = 9/2 − 7/2 38049.654 388(39) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 38088.461 295(30) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 47566.792 434(44) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 47605.496 347(35) Yebes 40 m This work
N = 9 − 8 J = 19/2 − 17/2 85634.010 747(86) IRAM 30 m Agúndez et al. (2008)
N = 9 − 8 J = 17/2 − 15/2 85672.580 712(82) IRAM 30 m Agúndez et al. (2008)
N = 11 − 10 J = 23/2 − 21/2 104666.568 542(64) IRAM 30 m Agúndez et al. (2008)
N = 11 − 10 J = 21/2 − 19/2 104705.108 487(59) IRAM 30 m Agúndez et al. (2008)
N = 12 − 11 J = 25/2 − 23/2 114182.523 462(59) IRAM 30 m Agúndez et al. (2008)
N = 12 − 11 J = 23/2 − 21/2 114221.023 406(53) IRAM 30 m Agúndez et al. (2008)


L483


C6H 2Π3/2 J = 23/2 − 21/2 a 31881.860 29.4(34) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 31.0(36) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 28.4(32) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 b 34658.383 27.7(31) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 26.2(29) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 26.2(30) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 a 40198.323 24.4(28) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 23.2(27) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 19.7(23) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 20.4(24) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 a 45742.519 13.6(22) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 b 45750.052 14.2(21) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 a 48514.584 13.0(23) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 b 48523.044 13.7(24) Yebes 40 m This work

C4H N = 4 − 3 J = 9/2 − 7/2 38049.654 470(48) Yebes 40 m This work
N = 4 − 3 J = 7/2 − 5/2 38088.461 356(36) Yebes 40 m This work
N = 5 − 4 J = 11/2 − 9/2 47566.792 439(50) Yebes 40 m This work
N = 5 − 4 J = 9/2 − 7/2 47605.496 352(36) Yebes 40 m This work
N = 8 − 7 J = 17/2 − 15/2 76117.439 375(38) IRAM 30 m This work
N = 8 − 7 J = 15/2 − 13/2 76156.028 337(35) IRAM 30 m This work
N = 9 − 8 J = 19/2 − 17/2 85634.010 272(27) IRAM 30 m Agúndez et al. (2019)
N = 9 − 8 J = 17/2 − 15/2 85672.580 249(24) IRAM 30 m Agúndez et al. (2019)
N = 10 − 9 J = 21/2 − 19/2 95150.393 157(15) IRAM 30 m Agúndez et al. (2019)
N = 10 − 9 J = 19/2 − 17/2 95188.947 147(14) IRAM 30 m Agúndez et al. (2019)
N = 11 − 10 J = 23/2 − 21/2 104666.568 110(10) IRAM 30 m Agúndez et al. (2019)
N = 11 − 10 J = 21/2 − 19/2 104705.108 100(9) IRAM 30 m Agúndez et al. (2019)
N = 12 − 11 J = 25/2 − 23/2 114182.523 64(6) IRAM 30 m Agúndez et al. (2019)
N = 12 − 11 J = 23/2 − 21/2 114221.023 64(6) IRAM 30 m Agúndez et al. (2019)


L1495B


C6H 2Π3/2 J = 13/2 − 11/2 a 18020.606 55(10)c GBT Gupta et al. (2009)
2Π3/2 J = 13/2 − 11/2 b 18021.783 55(10)c GBT Gupta et al. (2009)
2Π3/2 J = 21/2 − 19/2 a 29109.658 141.6(164)b GBT Cordiner et al. (2013)
2Π3/2 J = 23/2 − 21/2 a 31881.860 51.9(59) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 47.9(53) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 46.8(52) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 45.4(51) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 42.8(49) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 a 40198.323 36.2(42) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 37.7(42) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 33.3(40) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 33.6(40) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 a 45742.519 24.7(38) Yebes 40 m This work
2Π3/2 J = 33/2 − 31/2 b 45750.052 24.0(35) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 a 48514.584 19.4(32) Yebes 40 m This work
2Π3/2 J = 35/2 − 33/2 b 48523.044 18.6(33) Yebes 40 m This work


L1544


C6H 2Π3/2 J = 13/2 − 11/2 a 18020.606 51(11) GBT Gupta et al. (2009)
2Π3/2 J = 13/2 − 11/2 b 18021.783 50(11) GBT Gupta et al. (2009)
2Π3/2 J = 23/2 − 21/2 a 31881.860 23.8(36) Yebes 40 m This work
2Π3/2 J = 23/2 − 21/2 b 31885.541 30.0(44) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 a 34654.037 25.7(39) Yebes 40 m This work
2Π3/2 J = 25/2 − 23/2 b 34658.383 31.6(48) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 a 37426.192 23.3(36) Yebes 40 m This work
2Π3/2 J = 27/2 − 25/2 b 37431.255 19.9(34) Yebes 40 m This work
2Π3/2 J = 29/2 − 27/2 b 40204.157 18.0(31) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 a 42970.432 13.6(26) Yebes 40 m This work
2Π3/2 J = 31/2 − 29/2 b 42977.089 12.1(23) Yebes 40 m This work


L1521F


C6H 2Π3/2 J = 13/2 − 11/2 a 18020.606 36(10) GBT Gupta et al. (2009)
2Π3/2 J = 13/2 − 11/2 b 18021.783 26(9) GBT Gupta et al. (2009)


L1251A


C6H 2Π3/2 J = 21/2 − 19/2 a 29109.658 36(8) GBT Cordiner et al. (2011)
2Π3/2 J = 21/2 − 19/2 b 29112.730 35(8) GBT Cordiner et al. (2011)
2Π3/2 J = 21/2 − 19/2 a 29109.658 43.6(65)b GBT Cordiner et al. (2013)


L1512


C6H 2Π3/2 J = 13/2 − 11/2 a 18020.606 20(7)c GBT Gupta et al. (2009)
2Π3/2 J = 13/2 − 11/2 b 18021.783 20(7)c GBT Gupta et al. (2009)
2Π3/2 J = 21/2 − 19/2 a 29109.658 27(5) GBT Cordiner et al. (2011)
2Π3/2 J = 21/2 − 19/2 b 29112.730 28(5) GBT Cordiner et al. (2011)
2Π3/2 J = 21/2 − 19/2 a 29109.658 26.3(35)b GBT Cordiner et al. (2013)


L1172


C6H 2Π3/2 J = 21/2 − 19/2 a 29109.658 41.1(57)b GBT Cordiner et al. (2013)


L1389


C6H 2Π3/2 J = 13/2 − 11/2 a 18020.606 10(6)c GBT Gupta et al. (2009)
2Π3/2 J = 13/2 − 11/2 b 18021.783 10(6)c GBT Gupta et al. (2009)
2Π3/2 J = 21/2 − 19/2 a 29109.658 27.1(40)b GBT Cordiner et al. (2013)


TMC-1 C


C6H 2Π3/2 J = 21/2 − 19/2 a 29109.658 88.1(105)b GBT Cordiner et al. (2013)

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