Table 3.
Gas flows, energetics, and Lyα production.
| RO-1001 nebula |
QSO nebulae |
|||||
|---|---|---|---|---|---|---|
| Energy source | Constrain | Total | Effective | Constrain | Total | Effective |
| AGN photoionization | LAGN ≲ 2 × 1045 erg s−1 | ≲0.6 | < 0.2 | LAGN ∼ 1047 erg s−1 | 40 | ≈1 |
| AGN outflows | ≲200 M⊙ yr−1 | 0.3 | ≪0.1 | 8000 M⊙ yr−1 | 20 | ≈1? |
| SF outflows | 1200 M⊙ yr−1 | 1 | < 0.1 | 120 M⊙ yr−1 | Negl. | Negl. |
| SF photoionization | 1200 M⊙ yr−1 | 10 | < 0.03 | 120 M⊙ yr−1 | 1 | < 1 |
| 2*Gravitational energy | MDM = 4 × 1013 M⊙ | 2*160 | 2*≈1? | MDM = 3 × 1012 M⊙ | 2*≈1 | 2*< 0.01? |
| 10 000 M⊙ yr−1 | 500 M⊙ yr−1 | |||||
Notes. Energy rates for Lyα ionization. Total rates correspond to the energy rates available, while Effective estimates attempt to capture the fraction of all energy that can be used to power Lyα emission (this by definition is capped to ∼1). The Constrain column details the key ingredient used to estimate these rates, as discussed in the text. We express these energy rates in units of 1.5 × 1044 erg s−1 for the case of outflows and gravity, i.e., the typical Lyα luminosity of both the RO-1001 and also of the QSO nebulae (Borisova et al. 2016), and relative to the required numbers of ionizing photons for the case of AGN/SF photoionization. The typical SFR of bright QSO fields is from Schulze et al. (2019). Boldface values correspond to most energetically relevant entries for each class.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.