The CHESS spectral survey of star forming regions: Peering into the protostellar shock L1157-B1 - I. Shock chemical complexity

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Table 1:

List of molecular species and transitions observed with HIFI (Band 1b).
Transition	$\nu_{\rm0}$ ^a	$E_{\rm u}$ ^a	$T_{\rm peak}$	rms	$V_{\rm peak}$	$V_{\rm min}$	$V_{\rm max}$	$F_{\rm int}$
	(MHz)	(K)	(mK)	(mK)	(km s^-1)	(km s^-1)	(km s^-1)	(K km s^-1)
o-H₂O(1 $_{\rm 10}$ -1 $_{\rm01}$ )	556 936.002	27	910(17)	17	-0.37(1.00)	-25.4	+7.6	11.68(0.10)
CH₃OH E ( 11_2,9-10_1,9)	558 344.500	168	47(10)	10	+0.60(1.00)	-2.9	+2.7	0.16(0.02)
o-H₂CO(8 $_{\rm 18}$ -7 $_{\rm 17}$ )	561 899.318	118	92(4)^b	8	+0.38(0.14)^b	-4.5	+3.6	0.49(0.03)^b
CH₃OH E ( 3_2,2-2_1,2)	568 566.054	32	42(8)	8	+0.60(1.00)	-2.6	+2.7	0.31(0.02)
o-NH₃(1₀-0₀)	572 498.068	28	122(7)	7	+1.03(0.80)	-6.9	+5.0	0.89(0.03)
CO(5-4)	576 267.931	83	883(10)	10	+1.60(1.00)	-36.5	+6.0	49.30(0.07)
p-H₂CO(8 $_{\rm08}$ -7 $_{\rm07}$ )	576 708.315	125	41(7)	7	+1.80(1.00)	-5.4	+2.7	0.22(0.02)
CH₃OH A^- ( 2_2,1-1_1,0)	579 084.700	45	53(8)	8	+0.60(1.00)	-6.0	+3.7	0.29(0.03)
CH₃OH E ( 12_1,12-11_1,11)	579 151.003	178	44(8)	8	-0.30(1.00)	-4.0	+4.0	0.25(0.02)
CH₃OH A⁺ ( 12_0,12-11_0,11)	579 459.639	181	48(7)	7	+0.90(1.00)	-3.9	+4.9	0.27(0.02)
CH₃OH A⁺ ( 2_2,0-1_1,1)	579 921.342	45	42(7)	7	-0.60(1.00)	-3.3	+2.6	0.21(0.02)
CH₃OH E ( 12_2,10-11_2,9)	580 902.721	195	11(4)	4	-3.00(3.00)	-3.9	+2.5	0.09(0.02)
CH₃OH A⁺ ( 6_1,6-5_0,5)	584 449.896	63	88(9)	9	-0.30(1.00)	-6.0	+2.9	0.58(0.03)
CS(12-11)	587 616.240	183	23(2)^b	5	-0.61(0.57)^b	-7.3	+6.5	0.19(0.03)^b
CH₃OH A⁺ ( 7_3,5-6_2,4)	590 277.688	115	42(9)	9	+0.60(1.00)	-1.0	+3.0	0.16(0.02)
CH₃OH A^- ( 7_3,4-6_2,5)	590 440.291	115	40(9)	9	-0.60(1.00)	-2.6	+0.8	0.10(0.02)
CH₃OH E ( 9_0,9-8_1,8)	590 790.957	110	40(10)	10	+0.60(1.00)	-4.7	+4.3	0.28(0.03)
o-H₂CO(8 $_{\rm 17}$ -7 $_{\rm 16}$ )	600 374.604	126	29(7)^b	9	-0.14(0.57)^b	-3.0	+1.8	0.19(0.04)^b
CH₃OH E ( 4_2,3-3_1,3)	616 979.984	41	47(6)	6	+0.90(1.00)	-4.5	+2.6	0.26(0.02)
HCN(7-6)	620 304.095	119	94(7)	7	-0.60(1.00)	-7.6	+3.2	0.68(0.03)
HCO⁺(7-6)	624 208.180	119	30(3)^b	8	+0.53(0.47)^b	-3.6	+4.5	0.11(0.03)^b
CH₃OH A^- ( 3_2,2-2_1,1)	626 626.302	52	18(5)	5	-1.20(4.00)	-2.5	+6.3	0.18(0.07)
CH₃OH E ( 13_1,13-12_1,12)	627 170.503	209	33(7)	7	-0.30(1.00)	-3.2	+2.5	0.15(0.02)
CH₃OH A⁺ ( 13_0,13-12_0,12)	627 558.440	211	41(9)	9	+0.60(1.00)	-3.6	+2.5	0.19(0.02)
CH₃OH A⁺ ( 3_1,2-2_1,2)	629 140.493	52	52(9)	9	+0.60(1.00)	-3.5	+3.7	0.24(0.03)
CH₃OH A⁺ ( 7_1,7-6_0,6)	629 921.337	79	70(13)	13	+1.50(1.00)	-3.9	+3.7	0.37(0.04)
o-H₂CO(9 $_{\rm 19}$ -8 $_{\rm 18}$ )	631 702.813	149	66(4)^b	9	+0.45(0.17)^b	-1.5	+2.6	0.22(0.02)^b

Notes. CO and H₂O emission is discussed in Lefloch et al. (2010). Peak velocity and intensity (in $T_{\rm a}$ scale), integrated intensity ( $F_{\rm int}$ ), as well as the terminal velocities of the line emission ( $V_{\rm min}$ and $V_{\rm max}$ ) are reported. ^(a) Frequencies and spectroscopic parameters have been extracted from the Jet Propulsion Laboratory molecular database (Pickett et al. 1998) for all the transition except those of CH₃OH, which have been extracted from the Cologne Database for Molecular Spectroscopy (Müller et al. 2005). Upper level energies refer to the ground state of each symmetry. ^(b) Gaussian fit.

Source LaTeX | All tables | In the text

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