14N/15N abundance ratio toward massive star-forming regions with different Galactic distances

Home

All issues

Volume 695 (March 2025)

A&A, 695 (2025) L6

Full HTML

Open Access

Table A.1.

Source names, equatorial coordinates, distances, molecular species, and ratio data.

Source	R.A.	Decl.	D	D_GC	Line	∫T_mbdv	Velocity range	Rms	T_peak	V_LSR	(¹⁴N/¹⁵N)×(¹³C/¹²C)	¹⁴N/¹⁵N
Alias	(hh:mm:ss)	(dd:mm:ss)	(kpc)	(kpc)	(2-1)	(K⋅km s⁻¹)	(km s⁻¹)	(10⁻²K)	(k)	(km s⁻¹)
G005.88-00.39	18:00:30.31	-24:04:04.5	3.0	5.3	H¹³CN	115.73(0.69)	-10 40	16.8	10.2	10.02(0.03)	5.73(0.14)	231.8( $_{- 51.22}^{+ 41.43}$ $^{+41.43}_{-51.22}$ )
					HC¹⁵N	20.18(0.47)	3 18	21.0	3.4	9.29(0.06)
G009.62+00.19	18:06:14.66	-20:31:31.7	5.2	3.3	H¹³CN	32.77(0.39)	-11 18	12.4	2.51	4.62(0.07)	4.8(0.22)	154.74( $_{- 39.11}^{+ 27.04}$ $^{+27.04}_{-39.11}$ )
					HC¹⁵N	6.83(0.3)	-7 15	11.1	0.96	3.77(0.12)
G010.62-00.38	18:10:28.55	-19:55:48.6	5.0	3.6	H¹³CN	63.45(0.44)	-20 20	11.9	6.21	-4.54(0.03)	4.52(0.13)	151.48( $_{- 37.13}^{+ 26.15}$ $^{+26.15}_{-37.13}$ )
W 31					HC¹⁵N	14.03(0.4)	-20 20	10.9	1.86	-3.49(0.06)
G011.49-01.48	18:16:22.13	-19:41:27.2	1.2	7.1	H¹³CN	7.02(0.37)	5 17	18.5	1.41	10.39(0.11)	4.34(0.9)	207.2( $_{- 59.86}^{+ 57.06}$ $^{+57.06}_{-59.86}$ )
					HC¹⁵N	1.62(0.32)	5 15	17.5	0.57	10.16(0.21)
G011.91-00.61	18:13:58.12	-18:54:20.3	3.4	5.1	H¹³CN	12.49(0.15)	20 50	4.65	0.95	35.91(0.07)	4.71(0.21)	186.42( $_{- 42.21}^{+ 33.91}$ $^{+33.91}_{-42.21}$ )
					HC¹⁵N	2.65(0.11)	27 48	4.26	0.3	35.48(0.17)
G012.80-00.20	18:14:14.23	-17:55:40.5	2.9	5.5	H¹³CN	13.68(0.13)	20 50	4.07	1.21	36.19(0.04)	3.97(0.14)	163.59( $_{- 36.03}^{+ 29.65}$ $^{+29.65}_{-36.03}$ )
					HC¹⁵N	3.45(0.12)	25 50	4.04	0.61	35.35(0.06)
G012.88+00.48	18:11:51.42	-17:31:29.0	2.5	5.9	H¹³CN	17.12(0.12)	23 49	3.89	1.84	33.21(0.04)	3.8(0.08)	162.83( $_{- 34.89}^{+ 29.37}$ $^{+29.37}_{-34.89}$ )
IRAS 18089-1732					HC¹⁵N	4.51(0.09)	25 41	4.04	0.79	33.23(0.08)
G012.90-00.26	18:14:39.57	-17:52:00.4	2.5	5.9	H¹³CN	18.87(0.22)	23 52	7.17	2.04	38.19(0.04)	4.52(0.19)	193.92( $_{- 42.11}^{+ 35.63}$ $^{+35.63}_{-42.11}$ )
					HC¹⁵N	4.17(0.17)	30 45	7.35	0.77	37.83(0.08)
G014.33-00.64	18:18:54.67	-16:47:50.3	1.1	7.2	H¹³CN	27.57(0.62)	6 35	19.8	3.09	22.41(0.07)	4.52(0.27)	217.96( $_{- 45.74}^{+ 41.84}$ $^{+41.84}_{-45.74}$ )
					HC¹⁵N	6.09(0.34)	15 27	16.6	1.43	22.13(0.09)
G015.03-00.67	18:20:24.81	-16:11:35.3	2.0	6.4	H¹³CN	9.02(0.17)	10 27	7.25	1.7	19.52(0.04)	3.54(0.19)	159.17( $_{- 34.27}^{+ 30.01}$ $^{+30.01}_{-34.27}$ )
M 17					HC¹⁵N	2.54(0.13)	13 25	6.45	0.78	19.23(0.06)
G016.58-00.05	18:21:09.08	-14:31:48.8	3.6	5.0	H¹³CN	11.54(0.17)	47 73	5.56	1.28	59.77(0.05)	5.47(0.32)	214.45( $_{- 49.46}^{+ 39.75}$ $^{+39.75}_{-49.46}$ )
					HC¹⁵N	2.11(0.12)	52 68	5.09	0.38	59.94(0.12)
G023.00-00.41	18:34:40.20	-09:00:37.0	4.6	4.5	H¹³CN	11.04(0.14)	65 90	4.64	1.03	78.22(0.06)	5.3(0.26)	196.78( $_{- 46.18}^{+ 35.55}$ $^{+35.55}_{-46.18}$ )
					HC¹⁵N	2.08(0.1)	70 85	4.3	0.28	77.62(0.17)
G023.44-00.18	18:34:39.19	-08:31:25.4	5.9	3.7	H¹³CN	8.39(0.13)	88 115	4.14	0.74	103.01(0.08)	9.17(0.81)	310.88( $_{- 79.96}^{+ 59.69}$ $^{+59.69}_{-79.96}$ )
					HC¹⁵N	0.91(0.08)	97 107	4.31	0.22	102.16(0.15)
G027.36-00.16	18:41:51.06	-05:01:43.4	8.0	3.9	H¹³CN	18.71(0.15)	79 110	4.59	1.6	92.45(0.06)	4.94(0.15)	171.39( $_{- 41.2}^{+ 29.85}$ $^{+29.85}_{-41.2}$ )
					HC¹⁵N	3.79(0.11)	80 110	3.46	0.39	92.85(0.12)
G028.86+00.06	18:43:46.22	-03:35:29.6	7.4	4.0	H¹³CN	10.63(0.11)	87 113	3.71	1.09	103.92(0.04)	4.38(0.15)	153.97( $_{- 36.86}^{+ 27.01}$ $^{+27.01}_{-36.86}$ )
					HC¹⁵N	2.43(0.08)	95 112	3.31	0.33	103.64(0.1)
G029.95-00.01	18:46:03.74	-02:39:22.3	5.3	4.6	H¹³CN	37.16(0.4)	85 110	13.9	4.08	97.88(0.04)	5.26(0.2)	197.7( $_{- 45.74}^{+ 35.29}$ $^{+35.29}_{-45.74}$ )
W 43S					HC¹⁵N	7.06(0.25)	90 105	11.2	1.07	97.79(0.1)
G031.28+00.06	18:48:12.39	-01:26:30.7	4.3	5.2	H¹³CN	10.92(0.24)	100 116	10.5	1.22	109.1(0.1)	5.97(0.52)	238.94( $_{- 56.76}^{+ 47.13}$ $^{+47.13}_{-56.76}$ )
					HC¹⁵N	1.83(0.15)	105 113	9.39	0.39	109.16(0.21)
G031.58+00.07	18:48:41.68	-01:09:59.0	4.9	4.9	H¹³CN	6.99(0.14)	88 103	6.04	0.89	96.39(0.08)	6.33(0.61)	245.55( $_{- 59.91}^{+ 49.11}$ $^{+49.11}_{-59.91}$ )
W 43Main					HC¹⁵N	1.1(0.1)	90 103	4.91	0.29	96.48(0.14)
G032.04+00.05	18:49:36.58	-00:45:46.9	5.2	4.8	H¹³CN	15.38(0.15)	85 112	5.05	1.36	95.51(0.05)	6.08(0.23)	233.18( $_{- 53.36}^{+ 41.81}$ $^{+41.81}_{-53.36}$ )
					HC¹⁵N	2.53(0.09)	90 102	4.56	0.4	96.01(0.12)
G034.39+00.22	18:53:18.77	01:24:08.8	1.6	7.1	H¹³CN	3.6(0.09)	48 67	3.48	0.51	57.42(0.07)	7.21(0.83)	344.6( $_{- 80.09}^{+ 74.22}$ $^{+74.22}_{-80.09}$ )
					HC¹⁵N	0.5(0.06)	52 62	3.04	0.13	57.13(0.18)
G035.02+00.34	18:54:00.67	02:01:19.2	2.3	6.5	H¹³CN	12.11(0.09)	40 62	3.32	1.46	52.69(0.03)	5.08(0.14)	230.33( $_{- 48.15}^{+ 42.08}$ $^{+42.08}_{-48.15}$ )
					HC¹⁵N	2.38(0.06)	45 59	2.82	0.39	52.46(0.07)
G035.19-00.74	18:58:13.05	01:40:35.7	2.2	6.6	H¹³CN	17.55(0.2)	22 44	7.48	1.82	33.99(0.05)	4.33(0.16)	198.18( $_{- 41.57}^{+ 36.62}$ $^{+36.62}_{-41.57}$ )
					HC¹⁵N	4.05(0.14)	23 42	5.65	0.64	33.23(0.09)
G035.20-01.73	19:01:45.54	01:13:32.5	3.3	5.9	H¹³CN	5.92(0.08)	36 50	3.81	1.08	43.58(0.03)	6.17(0.51)	264.46( $_{- 60.46}^{+ 52.15}$ $^{+52.15}_{-60.46}$ )
					HC¹⁵N	0.96(0.08)	37 50	3.72	0.29	43.27(0.09)
G037.43+01.51	18:54:14.35	04:41:41.7	1.9	6.9	H¹³CN	7.67(0.11)	35 52	4.78	1.3	44.15(0.03)	4.45(0.22)	208.73( $_{- 43.8}^{+ 39.36}$ $^{+39.36}_{-43.8}$ )
					HC¹⁵N	1.73(0.08)	38 50	4.09	0.49	43.97(0.06)
G043.16+00.01	19:10:13.41	09:06:12.8	11.1	7.6	H¹³CN	44.25(0.24)	-20 35	5.59	2.54	5.19(0.04)	3.09(0.04)	154.04( $_{- 30.58}^{+ 28.33}$ $^{+28.33}_{-30.58}$ )
W 49N					HC¹⁵N	14.31(0.17)	-13 28	4.54	0.86	6.31(0.09)
G043.79-00.12	19:11:53.99	09:35:50.3	6.0	5.7	H¹³CN	10.89(0.13)	33 56	4.6	1.14	44.41(0.05)	4.25(0.18)	178.93( $_{- 39.21}^{+ 32.77}$ $^{+32.77}_{-39.21}$ )
OH 43.8-0.1					HC¹⁵N	2.56(0.1)	35 52	4.22	0.39	43.44(0.11)
G049.48-00.36	19:23:39.82	14:31:05.0	5.1	6.3	H¹³CN	59.91(0.23)	40 80	6.35	5.5	60.47(0.03)	3.13(0.03)	139.42( $_{- 29.19}^{+ 25.15}$ $^{+25.15}_{-29.19}$ )
W 51 IRS2					HC¹⁵N	19.12(0.15)	50 75	5.04	2.18	60.38(0.07)
G049.48-00.38	19:23:43.87	14:30:29.5	5.4	6.3	H¹³CN	94.12(0.32)	40 80	8.8	6.84	55.63(0.09)	2.46(0.02)	109.58( $_{- 22.93}^{+ 19.75}$ $^{+19.75}_{-22.93}$ )
W 51M					HC¹⁵N	38.23(0.2)	35 77	5.26	3.2	56.48(0.2)
G059.78+00.06	19:43:11.25	23:44:03.3	2.2	7.5	H¹³CN	5.48(0.1)	15 30	4.29	0.98	22.38(0.04)	4.62(0.3)	228.3( $_{- 47.79}^{+ 44.4}$ $^{+44.4}_{-47.79}$ )
					HC¹⁵N	1.19(0.07)	16 28	3.69	0.36	22.16(0.07)
G069.54-00.97	20:10:09.07	31:31:36.0	2.5	7.8	H¹³CN	8.9(0.11)	0 23	3.87	1.23	12.05(0.03)	3.44(0.14)	174.27( $_{- 34.99}^{+ 32.81}$ $^{+32.81}_{-34.99}$ )
ON 1					HC¹⁵N	2.58(0.1)	0 23	3.58	0.46	11.92(0.07)
G075.76+00.33	20:21:41.09	37:25:29.3	3.5	8.2	H¹³CN	9.61(0.07)	-11 7	2.88	1.53	-1.7(0.02)	5.48(0.2)	286.19( $_{- 56.46}^{+ 53.91}$ $^{+53.91}_{-56.46}$ )
					HC¹⁵N	1.75(0.06)	-9 5	2.92	0.43	-1.81(0.05)
G078.12+03.63	20:14:26.07	41:13:32.7	1.6	8.1	H¹³CN	10.73(0.15)	-13 7	5.69	1.49	-3.47(0.04)	3.44(0.14)	178.26( $_{- 35.43}^{+ 33.69}$ $^{+33.69}_{-35.43}$ )
IRAS 20126+4104					HC¹⁵N	3.12(0.12)	-13 5	4.87	0.45	-3.71(0.11)
G081.75+00.59	20:39:01.99	42:24:59.3	1.5	8.2	H¹³CN	6.67(0.08)	-12 4	3.55	1.23	-3.77(0.03)	5.04(0.22)	263.4( $_{- 52.32}^{+ 50.0}$ $^{+50.0}_{-52.32}$ )
DR 21					HC¹⁵N	1.32(0.06)	-8 0	3.37	0.54	-4.06(0.04)
G081.87+00.78	20:38:36.43	42:37:34.8	1.3	8.2	H¹³CN	36.71(0.22)	-2 22	7.81	4.78	9.61(0.02)	3.59(0.05)	187.62( $_{- 36.46}^{+ 34.76}$ $^{+34.76}_{-36.46}$ )
W 75N					HC¹⁵N	10.22(0.13)	0 18	5.39	1.76	9.4(0.03)
G092.67+03.07	21:09:21.73	52:22:37.1	1.6	8.5	H¹³CN	8.59(0.08)	-15 2	3.5	1.31	-6.25(0.03)	3.58(0.1)	191.64( $_{- 37.13}^{+ 35.91}$ $^{+35.91}_{-37.13}$ )
					HC¹⁵N	2.4(0.06)	-11 0	3.22	0.61	-6.23(0.04)
G109.87+02.11	22:56:18.10	62:01:49.5	0.7	8.6	H¹³CN	15.44(0.15)	-21 3	5.21	1.85	-10.06(0.03)	3.02(0.07)	162.8( $_{- 31.35}^{+ 30.45}$ $^{+30.45}_{-31.35}$ )
Cep A					HC¹⁵N	5.11(0.11)	-20 -1	4.36	0.81	-10.09(0.06)
G111.54+00.77	23:13:45.36	61:28:10.6	2.6	9.6	H¹³CN	15.84(0.05)	-70 -48	1.72	2.49	-57.5(0.02)	4.44(0.05)	257.51( $_{- 47.73}^{+ 48.3}$ $^{+48.3}_{-47.73}$ )
NGC 7538					HC¹⁵N	3.57(0.04)	-65 -51	1.63	0.77	-57.8(0.04)
G121.29+00.65	00:36:47.35	63:29:02.2	0.9	8.8	H¹³CN	5.76(0.04)	-27 -10	1.52	1.0	-17.33(0.01)	5.52(0.17)	302.1( $_{- 58.08}^{+ 56.9}$ $^{+56.9}_{-58.08}$ )
L 1287					HC¹⁵N	1.04(0.03)	-25 -12	1.48	0.31	-17.6(0.03)
G123.06-06.30	00:52:24.70	56:33:50.5	2.8	10.1	H¹³CN	7.21(0.05)	-40 -20	2.04	1.16	-30.51(0.02)	4.08(0.11)	244.74( $_{- 45.08}^{+ 46.47}$ $^{+46.47}_{-45.08}$ )
NGC 281					HC¹⁵N	1.77(0.04)	-40 -20	1.7	0.39	-30.57(0.04)
G133.94+01.06	02:27:03.82	61:52:25.2	2.0	9.8	H¹³CN	24.06(0.11)	-60 -37	4.01	2.78	-47.0(0.03)	2.96(0.03)	174.03( $_{- 32.07}^{+ 32.7}$ $^{+32.7}_{-32.07}$ )
W 3OH					HC¹⁵N	8.13(0.08)	-55 -40	3.52	1.31	-47.02(0.03)
G176.51+00.20	05:37:52.14	32:00:03.9	1.0	9.3	H¹³CN	1.88(0.06)	-23 -12	3.08	0.4	-18.01(0.07)	3.39(0.32)	192.41( $_{- 40.17}^{+ 40.17}$ $^{+40.17}_{-40.17}$ )
					HC¹⁵N	0.55(0.05)	-23 -14	2.78	0.17	-18.25(0.11)
G183.72-03.66	05:40:24.23	23:50:54.7	1.8	10.0	H¹³CN	2.34(0.04)	-5 8	1.81	0.5	2.41(0.03)	5.3(0.44)	315.63( $_{- 63.29}^{+ 64.74}$ $^{+64.74}_{-63.29}$ )
					HC¹⁵N	0.44(0.04)	-3 7	1.93	0.19	1.99(0.06)
G188.94+00.88	06:08:53.35	21:38:28.7	2.1	10.4	H¹³CN	3.99(0.07)	-3 10	3.36	0.83	3.58(0.03)	5.0(0.33)	305.95( $_{- 58.82}^{+ 61.04}$ $^{+61.04}_{-58.82}$ )
S 252					HC¹⁵N	0.8(0.05)	-1 8	2.87	0.24	3.34(0.09)
G192.60-00.04	06:12:54.02	17:59:23.3	1.6	9.9	H¹³CN	8.8(0.09)	0 15	3.78	1.63	7.59(0.02)	4.58(0.14)	271.37( $_{- 50.51}^{+ 51.67}$ $^{+51.67}_{-50.51}$ )
S 255					HC¹⁵N	1.92(0.06)	1 13	2.86	0.47	7.4(0.05)
G209.00-19.38	05:35:15.80	-05:23:14.1	0.4	8.6	H¹³CN	5.89(0.05)	2 15	2.38	1.36	8.97(0.02)	4.82(0.15)	259.64( $_{- 50.29}^{+ 48.85}$ $^{+48.85}_{-50.29}$ )
Orion Nebula					HC¹⁵N	1.22(0.04)	3 14	1.92	0.47	8.81(0.03)
G232.62+00.99	07:32:09.78	-16:58:12.8	1.7	9.4	H¹³CN	3.5(0.1)	10 24	4.66	0.72	17.09(0.06)	4.26(0.28)	243.43( $_{- 48.07}^{+ 48.24}$ $^{+48.24}_{-48.07}$ )
					HC¹⁵N	0.82(0.05)	14 21	3.15	0.34	17.0(0.06)
G211.59+01.05	06:52:45.30	01:40:23.1	4.4	11.9	H¹³CN	1.55(0.03)	39 51	1.62	0.31	45.62(0.05)	4.66(0.39)	313.81( $_{- 60.66}^{+ 65.38}$ $^{+65.38}_{-60.66}$ )
					HC¹⁵N	0.33(0.03)	41 50	1.55	0.09	45.76(0.12)

Notes. The table lists the source names, aliases, and equatorial coordinates (Cols. 1-3), the heliocentric distance determined via the parallax method from Reid et al. (2014; 2019, Col. 4), the galactocentric distance (D_GC) calculated from the heliocentric distances (Col. 5), the molecular species data, including their velocity-integrated intensities and velocity ranges (Cols. 6-8), the rms noise level obtained through baseline fitting (Col. 9), the peak T_mb and central velocity derived from single Gaussian fitting of the spectra (Cols. 10-11), and the (¹⁴N/¹⁵N)×(¹³C/¹²C) and ¹⁴N/¹⁵N ratios (Cols. 12-13).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.