Table 5
Derived parameters for FU Orionis-type objects detected in NH3 emission.
| Name | Trot(a) (K) | Tkin(b) (K) |  (c) (cm−2) |
 (d) (cm−2) |
Tdust(e) (K) | [NH3/H2](f) | η(g) | Outflow (Y/N) | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| RNO 1B/1C | 17.9 (0.9) | 21.3 (1.1) | (3.2 ± 0.2) × 1015 | 2.1 × 1023 | 14.5 | 1.5 × 10−8 | 0.16 | Y | 1 |
| PP 13S | 11.9(0.9) | 12.8 (1.1) | (6.6 ± 1.0) × 1014 | 2.6 × 1022 | 15.6 | 2.5 × 10−8 | 0.18 | Y | 1 |
| L1551 IRS 5 | 11.3(0.8) | 12.1 (0.8) | (1.9 ± 0.2) × 1015 | 6.5 × 1022 | 16.4 | 2.9 × 10−8 | 0.27 | Y | 1 |
| Haro 5a IRS | 13.6(1.5) | 15.1 (1.7) | (2.8 ± 0.5) × 1015 | 6.2 × 1022 | 18.1 | 4.5 × 10−8 | 0.14 | Y | 1 |
| V2775 Ori | 13.2(*) | – | (7.5 ± 1.9) × 1014 | 2.6 × 1022 | 14.0 | 2.8 × 10−8 | 0.15 | Y/N(**) | 2, 3 |
| NGC 2071 | 13.2(*) | – | (0.6 ± 1.0) × 1014 | 9.8 × 1021 | 21.8 | 6.1 × 10−9 | 0.01 | – | 2, 4 |
| V899 Mon | 13.2(*) | – | (2.2 ± 1.0) × 1014 | 9.1 × 1021 | 13.8 | 2.4 × 10−8 | 0.05 | Y | 1 |
| IRAS 06297+1021W | 13.2(*) | – | (4.1 ± 1.1) × 1014 | 1.5×1022 | 13.8 | 2.7 × 10−8 | 0.09 | Y | 1 |
| AR 6A/6B | 15.2 (1.9) | 17.2 (2.2) | (1.8 ± 0.4) × 1015 | 5.1 × 1022 | 15.8 | 3.5 × 10−8 | 0.06 | N | 1 |
| IRAS 06393+0913 | 13.2(*) | – | (5.2 ± 5.8) × 1013 | 1.1 × 1022 | 13.6 | 4.7 × 10−9 | 0.01 | Y? | 1 |
| V960 Mon | 13.2(*) | – | (2.1 ± 3.5) × 1014 | 1.3×1022 | 14. 9 | 1.6 × 10−8 | 0.02 | Y | 1 |
| Z CMa | 13.2(*) | – | (1.3 ± 3.5) × 1014 | – | – | – | 0.01 | Y | 7 |
| iPTF 15AFQ | 13.2(*) | – | (8.8 ± 2.3) × 1014 | 2.1 × 1022 | 11.8 | 1.3 × 10−8 | 0.11 | Y | 1 |
| IRAS 18270−0153 W | 11.2 (0.5) | 12.1 (0.5) | (1.8 ± 0.1) × 1015 | 5.2 × 1022 | 12.6 | 3.4 × 10−8 | 0.42 | – | 1 |
| OO Ser | 13.8 (0.6) | 15.3 (0.6) | (1.4 ± 0.1) × 1015 | 7.1 × 1022 | 14.7 | 1.9 × 10−8 | 0.25 | Y | 2, 5 |
| IRAS 18341−0113 S | 11.1 (0.6) | 11.7 (0.7) | (1.3 ± 0.1) × 1015 | 2.4× 1022 | 14.7 | 5.4 × 10−8 | 0.29 | – | 2, 5 |
| HBC 722 | 12.6 (0.6) | 13.8 (0.7) | (2.3 ± 0.2) × 1015 | 5.5 × 1022 | 13.2 | 4.1 × 10−8 | 0.31 | Y | 1 |
| V1057 Cyg | 13.2(*) | – | (1.5 ± 0.5) × 1015 | 1.0×1022 | 16.1 | 1.5 × 10−7 | 0.03 | Y | 1 |
| V2495 Cyg | 13.2(*) | – | (1.8 ± 0.3) × 1015 | 3.2 × 1022 | 12.6 | 5.6 × 10−8 | 0.12 | Y | 1 |
| RNO 127 | 13.2(*) | – | (9.5 ± 2.9) × 1014 | 2.1 × 1022 | 11.8 | 4.5 × 10−8 | 0.06 | Y | 1 |
| CB230 | 13.2(*) | – | (1.3 ± 0.1) × 1015 | 2.1 × 1022 | 15.3 | 6.2 × 10−8 | 0.19 | – | 1 |
| V1735 Cyg | 12.5 (1.5) | 13.6 (1.6) | (1.5 ± 0.3) × 1015 | 2.3 × 1022 | 15.3 | 6.5 × 10−8 | 0.17 | Y | 2, 6 |
| HH 354 IRS | 13.2(*) | – | (9.3 ± 1.7) × 1014 | 1.8×1022 | 16.5 | 5.1 × 10−8 | 0.11 | Y | 1 |
| V733 Cep | 13.2(*) | – | (9.2 ± 2.1) × 1014 | 1.6×1022 | 13.8 | 5.7 × 10−8 | 0.08 | Y | 1 |
Notes. (a) Rotational temperature. (b) Kinetic temperature. (c) NH3 column density. (d) H2 column density. (e) Dust temperature. (f) Ammonia abundance. (g) Beam filling factor. (*) Assumed Trot value; (**) the system is seen through a remnant outflow (Zurlo et al. 2017).
References. 1 – from SED fitting (this work), 2 – André et al. (2010), 3 – Roy et al. (2013), 4 – Schneider et al. (2013), 5 – Fiorellino et al. (2021), 6 – Arzoumanian et al. (2011), 7 – Evans et al. (1994), and references in Table B.1.
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