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Home All issues Volume 659 (March 2022) A&A, 659 (2022) A67 Full HTML
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Table A.4

List of transitions and observed line properties detected towards L1551-IRS5

Species Transition a ν a HPBW Eup a Sμ2 a rms b δV b Tpeak b Vpeak b FWHM b Iint b Database
(MHz) (′′) (K) (D2) (mK) (km s−1) (K) (km s−1) (km s−1) (K km s−1)
CO COng 2 – 1 230538.0 11 17 0.02 70 0.25 - - - ≥40 CDMS
13CO ng 2 – 1 220398.7 11 16 0.05 16 0.27 6.72 (0.03) +6.04 (0.02) 2.9 (0.1) 15.13 (0.03) CDMS
C18O 2 – 1 219560.3 11 16 0.02 65 0.27 6.17 (0.50) +6.41 (0.01) 1.3 (0.1) 8.39 (0.04) CDMS
13CN 2 – 1, J=3/2-1/2, 217277.7 11 16 1 9 0.27 0.03 (0.01) +6.59 (0.09) 0.8 (0.2) 0.03 (0.01) CDMS
F=1-1, F1=1-0
13CN 2 – 1, J=3/2-1/2, 217303.2 11 16 6 16 0.27 0.02 (0.02) +6.44 (0.35) 1.0 (0.8) 0.02 (0.01) CDMS
F=3-2, F1=2-1
13CN 2 – 1, J=5/2-3/2, 217305.9 11 16 0.13 15 0.27 0.02 (0.02) +6.30 (0.21) 0.6 (0.5) 0.10 (0.01) CDMS
F=1-2, F1=2-1
13CN 2 – 1, J=5/2-3/2, 217428.6 11 16 4 8 0.27 0.04 (0.01) +6.23 (0.07) 0.9 (0.1) 0.04 (0.01) CDMS
F=3-2, F1=2-1
13CNh1 2 – 1, J=5/2-3/2, 217467.1 11 16 8 12 0.27 0.10 (0.01) +6.38 (0.05) 1.2 (0.1) 0.13 (0.01) CDMS
F=4-3, F1=3-2
13CN 2 – 1,J=5/2-3/2, 217469.2 11 16 4 21 0.27 0.04 (0.01) +6.43 (0.17) 0.8 (0.4) 0.03 (0.01) CDMS
F=2-1, F1=3-2,
C15N 2 – 1, 3/2-1/2, 219722.5 11 16 4 7 0.27 0.03 (0.01) +6.38 (0.07) 0.6 (0.1) 0.02 (0.01) CDMS
F=2-1
C15N h2 2 – 1, J=5/2-3/2, 219934.8 11 16 6 7 0.27 0.38 (0.01) +6.36 (0.12) 2.0 (0.2) 0.07 (0.01) CDMS
F=3-2
13CS h3 5 – 4 231220.7 11 33 38 8 0.25 0.09 (0.01) +6.51 (0.03) 1.4 (0.1) 0.14 (0.01) CDMS
SO 55 – 44 215220.6 11 44 12 13 0.27 0.68 (0.04) +6.48 (0.01) 1.7 (0.1) 1.23 (0.01) CDMS
SO 65 – 54 219949.4 11 35 14 19 0.27 1.15 (0.06) +6.53 (0.01) 1.6 (0.1) 1.96 (0.02) CDMS
34 SO 65 – 54 215839.9 11 35 14 8 0.27 0.05 (0.01) +6.46 (0.08) 2.3 (0.2) 0.13 (0.01) CDMS
OCS ng 18 – 17 218903.4 11 100 9 7 0.27 0.13 (0.01) +7.00 (0.06) 6.9 (0.1) 0.48 (0.03) CDMS
OCS ng 19 – 18 231061.0 11 110 10 7 0.27 0.15 (0.01) +6.95 (0.15) 5.1 (0.1) 0.48 (0.03) CDMS
O13 CS ng 19 – 18 230317.5 11 110 10 7 0.25 0.04 (0.01) +8.46 (0.11) 2.1 (0.3) 0.04 (0.01) CDMS
CCD h4 3 – 2, J=7/2-5/2, 216372.8 11 21 3 9 0.27 0.25 (0.01) +5.98 (0.02) 1.4 (0.1) 0.37 (0.01) CDMS
F=9/2-7/2
CCD h5 3 – 2, J=5/2-3/2, 216428.3 11 21 2 35 0.27 0.27 (0.01) +6.19 (0.43) 0.7 (0.8) 0.01 (0.01) CDMS
F=7/2-5/2
CCS 17 – 16, J=16-15 219142.7 11 100 134 6 0.53 0.03 (0.01) +6.51 (0.18) 1.8 (0.6) 0.07 (0.01) JPL
CCS 17 – 16, J=18-17 221071.1 11 99 149 8 0.52 0.03 (0.01) +6.41 (0.18) 2.9 (0.4) 0.05 (0.01) JPL
DCN h6 3 – 2, F=4-3 217238.3 11 21 35 16 0.27 0.49 (0.03) +6.40 (0.01) 1.4 (0.1) 0.71 (0.01) CDMS
DCO+ 3 – 2 216112.6 11 21 142 10 0.27 2.34 (0.06) +6.26 (0.01) 0.9 (0.1) 2.37 (0.01) CDMS
H2S ng 22,0 – 21,1 216710.4 11 84 2 8 0.27 0.12 (0.02) +6.58 (0.05) 5.1 (0.1) 0.65 (0.01) CDMS
N2D+ h7 3 – 2 231321.7 11 22 312 8 0.25 0.18 (0.01) +6.00 (0.01) 0.8 (0.1) 0.15 (0.01) JPL
SO2 42,2 – 31,3 235151.7 10 19 5 6 0.50 0.04 (0.01) +6.49 (0.09) 2.2 (0.2) 0.11 (0.01) CDMS
SO2 ng 123,9 – 122,10 237068.8 10 94 18 9 0.99 0.02 (0.01) +6.79 (0.28) 3.6 (0.6) 0.08 (0.01) CDMS
p-D2CO 41,4 – 31,3 221191.7 11 32 20 9 0.26 0.25 (0.01) +6.21 (0.01) 1.0 (0.1) 0.26 (0.01) JPL
o-D2CO 40,4 – 30,3 231410.3 11 28 43 9 0.25 0.62 (0.02) +6.27 (0.01) 1.0 (0.1) 0.67 (0.01) JPL
p-D2CO 42,3 – 32,2 233650.7 11 50 33 9 0.25 0.14 (0.01) +6.20 (0.03) 1.3 (0.1) 0.19 (0.01) JPL
o-D2CO 42,2 – 32,1 236102.1 10 50 33 11 0.25 0.13 (0.01) +6.19 (0.03) 1.1 (0.1) 0.15 (0.01) JPL
HDCS ng 71,6 – 61,5 221177.1 11 51 19 6 0.53 0.02 (0.01) +7.36 (0.3) 2.5 (0.9) 0.05 (0.01) CDMS
p-H2CO 30,3 – 20,2 218222.1 11 21 16 42 0.53 3.32 (0.23) +6.45 (0.01) 1.1 (0.1) 3.95 (0.04) CDMS
p-H2CO 32,2 – 22,1 218475.6 11 68 9 12 0.27 0.32 (0.01) +6.50 (0.02) 2.0 (0.1) 0.69 (0.01) CDMS
p-H2CO 32,1 – 22,0 218760.0 11 68 9 10 0.27 0.30 (0.03) +6.52 (0.02) 2.2 (0.1) 0.70 (0.01) CDMS
o-HCO 31,2 – 21,1 219908.5 11 33 44 7 0.27 0.13 (0.01) +6.47 (0.02) 1.1 (0.1) 0.15 (0.01) CDMS
o-H2CS 71,7 – 61,6 236727.0 10 59 56 8 0.25 0.09 (0.01) +6.68 (0.06) 2.9 (0.1) 0.27 (0.01) CDMS
o-H2C33Sh8 71,7 – 61,6 234678.8 10 58 67 13 0.25 0.05 (0.01) +6.78 (0.09) 0.8 (0.2) 0.04 (0.01) CDMS
F=17/2-15/2
HNCO ng 100,10 – 90,9 219798.3 11 58 25 7 0.27 0.03 (0.01) +6.04 (0.13) 2.0 (0.3) 0.09 (0.01) CDMS
c-C3H 41,3 – 31,2 216488.2 11 25 23 11 0.27 0.06 (0.09) +6.80 (0.06) 0.8 (0.1) 0.05 (0.01) JPL
F=9/2-7/2
F=5-4
c-C3H C1 41,3 – 31,2 216492.6 11 25 17 14 0.27 0.40 (0.01) +6.90 (0.13) 1.1 (0.3) 0.05 (0.01) JPL
F=9/2-7/2
F=4-3
D2CO 81,7 – 81,8 216492.4 11 111 1 - - - - - - JPL
c-C3H 41,3 – 31,2 216641.1 11 25 14 11 0.27 0.04 (0.05) +6.58 (0.12) 1.4 (0.3) 0.06 (0.01) JPL
F=7/2-5/2
F=3-2
o-c-C3H2 33,0 – 22,1 216278.8 11 19 46 12 0.27 1.25 (0.05) +6.42 (0.01) 0.9 (0.1) 1.24 (0.01) CDMS
o-c-C3H2 61,6 – 50,5 217822.1 11 39 175 13 0.27 1.75 (0.01) +6.41 (0.01) 1.1 (0.1) 2.01 (0.01) CDMS
o-c-C3H2 51,4 – 42,3 217940.0 11 35 110 12 0.27 1.05 (0.06) +6.41 (0.02) 1.1 (0.1) 1.16 (0.01) CDMS
p-c-C3H2 52,4 – 41,3 218160.5 11 35 37 10 0.27 0.39 (0.02) +6.42 (0.01) 1.1 (0.1) 0.46 (0.01) CDMS
o-c-C3H2 C2 83,6 – 82,7 218449.4 11 87 63 34 0.27 0.05 (0.01) +6.63 (0.50) 2.5 (1.0) 0.12 (0.04) CDMS
p-c-C3H2 82,6 – 81,7 218448.8 11 87 21 - - - - - - CDMS
o-c-C3H2 ng 71,6 – 70,7 218732.7 11 61 33 7 0.27 0.10 (0.01) +6.45 (0.03) 1.4 (30.1) 0.15 (0.01) CDMS
o-H2CCO 111,11 – 101,10 220177.6 11 76 66 7 0.27 0.03 (0.01) +6.40 (0.16) 2.2 (0.7) 0.04 (0.06) CDMS
p-H2CCO ng 110,11 – 100,10 222197.6 11 64 22 3 0.53 0.02 (0.01) +6.15 (0.14) 2.5 (0.3) 0.05 (0.01) CDMS
CH3OH 61,6 – 72,6A 215302.2 11 374 19 8 0.27 0.04 (0.01) +8.98 (0.05) 0.6 (0.2) 0.03 (0.01) CDMS
vt=1
CH3OH ng 5−1,4 – 4−2,3E 216945.5 11 56 4 9 0.54 0.05 (0.01) +8.80 (0.16) 1.9 (0.5) 0.08 (0.03) CDMS
CH3OH e 4−2,3 – 3−1,2E 218440.1 11 45 14 9 0.27 0.18 (0.01) +6.83 (0.06) 3.3 (0.2) 0.35 (0.01) CDMS
CH3OH 8−1,8 – 7−1,6E 220078.6 11 97 14 6 0.53 0.06 (0.01) +8.68 (0.09) 2.7 (0.5) 0.11 (0.01) CDMS
CH3OH C3 102,9-93,6A 231281.1 11 165 11 8 0.53 0.03(0.01) +9.36(0.21) 4.0(0.7) 0.12 (0.02) CDMS
CH3CHO 126,6 – 116,5E 231278.5 11 153 113 - - - - - - JPL
CH3OH 102,8 – 93,7A 232418.5 11 165 11 10 0.25 0.05 (0.01) +8.81 (0.09) 1.5 (0.2) 0.08 (0.01) CDMS
CH3OH ng 103,7-112,9E 232945.8 11 190 12 8 0.25 0.04 (0.01) +8.93 (0.13) 2.2 (0.4) 0.06 (0.03) CDMS
CH3OH 42,3 – 51,4A 234683.4 10 61 4 12 0.25 0.05 (0.01) +8.78 (0.08) 0.8 (0.2) 0.04 (0.01) CDMS
CH3OH 54,2 – 63,3E 234698.5 10 123 2 9 0.25 0.03 (0.01) +9.61 (0.13) 1.4 (0.4) 0.04 (0.01) CDMS
CH2DOH 31,3 – 20,2, e0 214701.7 11 17 2 10 0.54 0.03 (0.01) +9.43 (0.16) 1.7 (0.4) 0.04 (0.01) JPL
CH3CN 124 – 114E 220679.3 11 183 226 8 0.26 0.03 (0.01) +8.07 (0.14) 4.3 (0.6) 0.03 (0.01) JPL
CH3CN 123 – 113A 220709.3 11 133 477 8 0.26 0.05 (0.01) +7.89 (0.20) 4.5 (0.4) 0.06 (0.01) JPL
CH3CN 122 – 112E 220730.3 11 97 247 8 0.26 0.04 (0.01) +7.89 (0.23) 3.6 (0.6) 0.04 (0.01) JPL
CH3CN 121 – 111E 220743.0 11 76 252 11 0.53 0.03 (0.01) +8.55 (0.26) 1.3 (0.4) 0.04 (0.01) JPL
CH3CN 120 – 110A 220747.3 11 69 254 10 0.53 0.04 (0.01) +8.05 (0.12) 3.2 (0.7) 0.07 (0.01) JPL
CH3CCH C4 133 – 123 222128.8 11 140 9 7 0.26 0.03 (0.01) +7.05 (0.24) 3.0 (0.9) 0.05 (0.01) CDMS
HCOOCH3 85,4 – 74,3A 222128.2 11 226 2 - - - - - - JPL
CH3CCH 132 – 122 222150.0 11 103 5 6 0.26 0.02 (0.01) +6.85 (0.12) 1.8 (0.4) 0.05 (0.01) CDMS
CH3CCH 131 – 121 222162.7 11 82 5 19 0.26 0.05 (0.01) +6.45 (0.17) 1.4 (0.5) 0.07 (0.02) CDMS
CH3CCH 130 – 120 222166.9 11 75 5 15 0.26 0.07 (0.01) +6.50 (0.10) 1.7 (0.2) 0.11 (0.01) CDMS
CH3CHO ng 127,6 – 117,5E 231268.4 11 182 100 15 0.51 0.03 (0.01) +8.15 (0.20) 1.4 (0.6) 0.04 (0.01) JPL
CH3CHO ng 33,1 – 32,2E 234469.3 11 26 2 8 0.50 0.03(0.01) +7.27 (0.16) 2.1 (0.3) 0.06 (0.01) JPL
CH3CHO ng 121,11 – 111,10E 235996.2 10 76 151 8 0.50 0.03 (0.01) +8.43 (0.17) 3.0 (0.4) 0.09 (0.01) JPL
HCOOCH3 C5 201,20 – 191,19A 216965.9 11 111 53 8 0.53 - - - ≥0.24 JPL
HCOOCH3 200,20 – 191,19E 216963.0 11 111 8 - - - - - - JPL
HCOOCH3 200,20 – 191,19A 216964.2 11 111 8 - - - - - - JPL
HCOOCH3 201,20 – 191,19E 216964.8 11 111 53 - - - - - - JPL
HCOOCH3 200,20 – 190,19E 216966.2 11 111 53 - - - - - - JPL
HCOOCH3 200,20 – 190,19A 216967.4 11 111 53 - - - - - - JPL
HCOOCH3 201,20 – 190,19E 216968.0 11 111 8 - - - - - - JPL
HCOOCH3 201,20 – 190,19A 216969.2 11 8 53 - - - - - - JPL
HCOOCH3 C6 1813,5 – 1713,4E 221139.8 11 213 23 6 0.53 - - - ≥0.04 JPL
HCOOCH3 1813,5 – 1713,4A 221141.1 11 213 23 - - - - - - JPL
HCOOCH3 1813,6 – 1713,5A 221141.1 11 213 23 - - - - - - JPL
HCOOCH3 C7 184,15 – 174,14E 221660.5 11 112 45 7 0.53 - - - ≥0.11 JPL
HCOOCH3 1810,9 – 1710,8A 221661.0 11 167 33 - - - - - - JPL
HCOOCH3 1810,8 – 1710,8A 221661.0 11 167 33 - - - - - - JPL

a Frequencies and spectroscopic parameters are from the Jet Propulsion Laboratory (JPL) molecular database (Pickett et al. 1998) and the Cologne Database for Molecular Spectroscopy (Müller et al. 2005).

b Gaussian fit.

ng Non-Gaussian profile. The line intensity is obtained by integrating the zero power full width (ZPFW) range. In particular, −15, +30 km s−1 for CO (2 – 1), +3, +10 km s−1) for 13CO (2–1), and +3, +10 km s−1 for C18O (2-1) (see Figure A.6). The value has to be considered a lower limit given the presence of absorption features.

ng Non-Gaussian profile. The line intensity is obtained by integrating the ZPFW range.

h1 The detected 2 – 1, J=5/2–3/2, F=4–3, F1=3–2 line consists of six hyperfine components with Sμ2 ≤ 8 D2 (Müller et al. 2005) in a 261 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

h2 The detected 2 – 1, J=5/2–3/2, F=3–2 line consists of three hyperfine components with Sμ2 ≤ 6 D2 (Müller et al. 2005) in a 289 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

h3 The detected 5 – 4 line consists of four hyperfine components with Sμ2 ≤ 38 D2 (Müller et al. 2005) in a 0.0 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

h4 The detected 3 – 2, J=7/2–5/2, F=9/2–7/2 line consists of three hyperfine components with Sμ2 ≤ 3 D2 (Müller et al. 2005) in a 0.5 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

h5 The detected 3 – 2, J=5/2–3/2, F=7/2–5/2 line consists of three hyperfine components with Sμ2 ≤ 2 D2 (Müller et al. 2005) in a 3.0 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

h6 The detected 3 – 2, F=4–3 line consists of three hyperfine components with Sμ2 ≤ 35 D2 (Müller et al. 2005) in a 0.7 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4.

a Frequencies and spectroscopic parameters are from the Jet Propulsion Laboratory (JPL) molecular database (Pickett et al. 1998) and the Cologne Database for Molecular Spectroscopy (Müller et al. 2005).

b Gaussian fit.

ng Non-Gaussian profile. The line intensity is obtained by integrating the zero power full width (ZPFW) range.

h7 The detected 3 – 2 line consists of 40 hyperfine components with Sμ2 ≤ 312 D2 in a 3 MHz frequency interval. The values are from L. Dore (private communication). The line with the highest Sμ2 line is reported (see, e.g., Figures A.4).

h8 The detected 71,7 – 61,6 line consists of three hyperfine components with Sμ2 ≤ 67 D2 (Müller et al. 2005) in a 2 MHz frequency interval. The line with the highest Sμ2 line is reported (see, e.g., Figures A.4).

C1 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to D2CO emission at 216492.4 MHz.

C2 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to p-c-C3H2 emission at 218448.8 MHz.

a Frequencies and spectroscopic parameters are from the Jet Propulsion Laboratory (JPL) molecular database (Pickett et al. 1998) and the Cologne Database for Molecular Spectroscopy (Müller et al. 2005).

b Gaussian fit.

ng Non-Gaussian profile. The line intensity is obtained by integrating the zero power full width (ZPFW) range.

C3 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to CH3OH emission at 231278.5 MHz.

C4 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to HCOOCH3 emission at 222128.2 MHz.

C5 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to HCOOCH3 emissions at 216963.0–216969.2 MHz.

C6 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to HCOOCH3 emission at 221141.1 MHz.

C7 Line blended at the present spectral resolution (0.2 MHz). Possible contamination due to HCOOCH3 emission at 221661.0 MHz.

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