Table B.1
Barnard 1b physical conditions.
| Source name | Tdust (K) | Av (mag) | Tgas (K) | nH (cm−3) |  CS) (cm−2) (a) |
N(13CS)/N(HT) |  |
N(H2S)/N(HT) |
|---|---|---|---|---|---|---|---|---|
| B1B-cal-0_0 | 11.90 | 76.00 | 9.8 ± 1.4 | (6.3 ± 3.0) × 105 | (2.0 ± 1.6) × 1012 | (2.6 ± 2.1) × 10−11 | (5.2 ± 2.5) × 1013 | (4.5 ± 2.1) × 10−10 |
| B1B-cal-10_0 | 11.72 | 59.80 | 10.1 ± 1.5 | (4.2 ± 2.8) × 105 | (1.3 ± 0.9) × 1012 | (2.2 ± 1.5) × 10−11 | (1.8 ± 1.2) × 1014(b) | (1.9 ± 1.2) × 10−9(b) |
| B1B-cal-20_0 | 11.72 | 45.80 | 10.9 ± 1.7 | (1.6 ± 0.9) × 105 | (1.9 ± 1.2) × 1012 | (4.0 ± 2.6) × 10−11 | (3.2 ± 2.1) × 1014(b) | (4.5 ± 2.9) × 10−9(b) |
| B1B-cal-30_0 | 11.54 | 38.70 | 11.9 ± 1.0 | (1.0 ± 0.4) × 105 | (1.1 ± 0.5) × 1012 | (2.8 ± 1.2) × 10−11 | (3.1 ± 1.4) × 1014 | (5.2 ± 2.3) × 10−9 |
| B1B-cal-40_0 | 11.54 | 28.39 | 12.1 ± 1.1 | (1.0 ± 0.4) × 105 | (9.5 ± 4.4) × 1011 | (3.3 ± 1.6) × 10−11 | (2.0 ± 0.9) × 1013 | (4.5 ± 2.0) × 10−9 |
| B1B-cal-50_0 | 12.39 | 20.00 | 13.2 ± 1.3 | (4.7 ± 2.2) × 104 | (1.7 ± 0.8) × 1011 | (8.7 ± 4.2) × 10−11 | (1.9 ± 0.9) × 1013 | (6.0 ± 2.9) × 10−9 |
| B1B-cal-60_0 | 12.67 | 20.00 | 12.3 ± 0.9 | (3.1 ± 1.6) × 104 | (2.2 ± 1.1) × 1012 | (1.1 ± 0.5) × 10−10 | (3.4 ± 1.7) × 1014 | (1.1 ± 0.6) × 10−8 |
| B1B-cal-80_0 | 13.24 | 17.05 | 13.2 ± 1.8 | (5.5 ± 2.4) × 104 | (1.0 ± 0.3) × 1012 | (6.1 ± 1.8) × 10−11 | (1.0 ± 0.4) × 1014 | (3.9 ± 1.7) × 10−9 |
| B1B-cal-110_0 | 13.98 | 14.46 | 14.4 ± 1.9 | (5.2 ± 2.1) × 104 | (9.8 ± 2.7) × 1011 | (6.8 ± 1.9) × 10−11 | (8.2 ± 3.3) × 1013 | (3.7 ± 1.5) × 10−9 |
| B1B-cal-140_0 | 14.53 | 11.87 | 14.2 ± 1.0 | (9.5 ± 2.5) × 103 | (5.4 ± 2.7) × 1012 | (4.5 ± 2.3) × 10−10 | (8.3 ± 2.2) × 1014 | (4.5 ± 1.2) × 10−8 |
| B1B-cal-180_0 | 16.21 | 8.57 | 15.3 ± 1.2 | (3.6 ± 1.7) × 103 | (6.2 ± 3.3) × 1012 | (7.3 ± 3.9) × 10−10 | (4.2 ± 2.0) × 1014 | (3.2 ± 1.5) × 10−8 |
| B1B-cal-240_0 | 16.70 | 6.16 | 16.4 ± 1.0 | (3.8 ± 1.8) × 103 | (1.6 ± 0.8) × 1012 | (2.6 ± 1.4) × 10−10 | (1.5 ± 0.7) × 1014 | (1.6 ± 0.8) × 10−8 |
| B1B-cal-500_0 | 18.23 | 3.44 | 18.0 ± 5.4 | (9.6 ± 2.2) × 102 | (5.5 ± 3.0) × 1011 | (1.6 ± 0.9) × 10−10 | (1.8 ± 0.4) × 1013(c) | (3.4 ± 0.8) × 10−9(c) |
Notes. 13CS and H2S abundances. (a) When 13CS or C34S isotopologues are not detected, 13CS column densities are determined from that of C34S or CS, applying the isotopic ratios CS/13CS ≈ 60 and C34S/13CS ≈ 8/3. (b) Column densities are obtained from that of the isotopologue H234S, using H2S/H234S ≈ 22.5. (c) Upper bound values.
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