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Table B.4

L1551-IRS5: Temperatures and beam-averaged column densities for different physical components (envelope, out- flow, and hot corino; see text).

Species Trot Ntot h
(K) (cm−2)
Envelope

SO 35 (40)a 1(2) × 1013
SO2 44 (8)a 8(2) × 1012
p-H2CO 30 (5)a 22(7) × 1012
o-D2CO 18 (4)a 3(2) × 1012
p-D2CO 28 (14)a 9(7) × 1012
c-C3H2 24 (4)a 11(3) × 1012
H2CCO 21 (13)a 2(8) × 1013
CH3CCH 23 (11) 6(13) × 1013
C18O 20 − 35 b 3 − 4 × 1015
13CNf 20 − 35 b 45 − 54 × 1011
C15Nf 20 − 35 b 59 − 71 × 1010
13CS 20 − 35 b 13 − 16 × 1010
34SO 20 − 35 b 1 − 2 × 1012
CCD 20 − 35 b 10 − 11 × 1012
DCN 20 − 35 b 23 − 25 × 1010
N2D+ f 20 − 35 b 9 − 10 × 1010
DCO+ 20 − 35 b 3 − 4 × 1011
CCS 20 − 35 b 1 − 5 × 1012
o-H2CSg 20 − 35 b 2 − 3 × 1014
o-H2C33S 20 − 35 b 6 − 7 × 1011
HDCS 20 − 35 b 8 − 10 × 1011
HNCO 20 − 35 b 5 − 8 × 1011
c-C3H 20 − 35 b 14 − 17 × 1011
CH3OHe 20 − 35b 5 − 7 × 1013

Outflow

SO 33 (37)a 11(11) × 1012
p-H2CO 58 (21)a 5(2) × 1012
13 CO 50 − 70c 3 − 4 × 1015
C18O 50 − 70 c 9 − 10 × 1014
13 CS 50 − 70c 9 − 10 × 1010
DCN 50 − 70c 16 − 20 × 1010
DCO+ 50 − 70c 8 − 30 × 109
o-H2CS 50 − 70c 1 − 2 × 1012

Hot corino

OCS g 64 (121)a 2(5) × 1015
CH3OHe 148 (30)a 16(4) × 1013
CH3CN 133 (81)a 1(5) × 1012
CH3CHOe 42 (5)a 22(6) × 1012
O13 CS 60 − 150d 3 − 4 × 1012
H2S 60 − 150d 4 − 5 × 1013
CH2DOH 60 − 150d 1 − 3 × 1013
HCOOCH3 60 − 150d 3 − 5 × 1013

Notes. (a) Temperatures and column densities as derived from rotational diagrams (see Table 5). (b) Temperature range assumed from the D2CO and c-C3H2 analysis of the envelope emission (see text). (c) Assumed according to the p-H2CO analysis of the outflow component (see text). (d) Temperature range assumed from the CH3OH and OCS rotational diagrams (e) Column density refers to the sum of A and E species. (f) Column density is corrected for the opacity as derived by fitting the hyperfine line pattern (see Table 3). (g) Column density is corrected for opacity (see Sect. 4.2). (h) Source averaged column densities can be derived by applying the filling factor reported in Table 6 for c-C3H2 as an envelope tracer and for CH3OH and CH3CN as hot corino tracers.

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