Table 1
Dust, gas and dynamical masses of z > 5 QSOs.
| Mdust | Mgas | Mdynsin2i | Tdust | ||||
| No. | QSO | z | (108M⊙) | (1010M⊙) | (1010M⊙) |
|
(K) |
|
|
|||||||
| 1 | J0338+0021 | 5.03 | 7.1 ± 0.6 | 2.2a | 3.0a | 31 | 45.6d> |
| 2 | J0840+5624 | 5.85 | 4.7 ± 0.9 | 2.5b | 24.2b | 53 | ... |
| 3 | J0927+2001 | 5.77 | 7.2 ± 1.1 | 1.8b | 11.8b | 25 | 51.1d |
| 4 | J1044 − 0125 | 5.74 | 2.7 ± 0.6 | 0.7b | 0.8b | 26 | ... |
| 5 | J1048+4637 | 6.23 | 4.3 ± 0.6 | 1.0b | 4.5b | 23 | <40e |
| 6 | J1148+5251 | 6.42 | 5.9 ± 0.7 | 1.6c | 4.5c | 27 | 55.0f |
| 7 | J1335+3533 | 5.93 | 3.4 ± 0.7 | 1.8b | 3.1b | 53 | ... |
| 8 | J1425+3254 | 5.85 | 3.3 ± 0.7 | 2.0b | 15.6b | 60 | ... |
| 9 | J2054 − 0005 | 6.06 | 3.4 ± 0.8 | 1.2b | 4.2b | 35 | ... |
Notes. The sample includes QSOs detected in their dust continuum and CO line emission (Carilli et al. 2000, 2001, 2007; Bertoldi et al. 2003a,b; Petric et al. 2003; Priddey et al. 2003, 2008; Walter et al. 2003, 2004; Robson et al. 2004; Beelen et al. 2006; Maiolino et al. 2007; Riechers et al. 2007; Wang et al. 2007, 2008a,b, 2010; Wu et al. 2009). We calculated dust masses from the detection of 1200μm emission using Eq. (5) of Michałowski et al. (2009) assuming β = 1.3. The errors reflect the statistical uncertainties only. For three QSOs we assumed observationally inferred dust temperatures (the last column). For the rest we adopted the average of these estimates Tdust = 50 K.
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