Table 2.
Properties of the host galaxy 4C 19.71 (MG 2144+1928).
| Property | Value | Reference |
|---|---|---|
| RA (J2000), Dec (J2000) | 21:44:7.45, +19:29:14.60 | |
| RA (°), Dec (°) | 326.03104, 19.48739 | |
| Systemic redshift (zsys) | 3.5895 | This work Sect. 3.1 |
| Stellar mass (M⋆) | 1011.13 M⊙ | De Breuck et al. (2010) |
| Molecular mass (MH2) | 3.1 ± 1.1 × 1010 M⊙ | This work Sect. 4.4.4 |
| Ionized mass (MHII) | 1 − 18 × 107 M⊙ | This work Sect. 4.4.4 |
| Infrared luminosity (LIR ≡ L8 − 1000 μm) | 0.74 L⊙ |
Falkendal et al. (2019) |
| Star-formation rate (SFR) | 84 M⊙ yr−1 |
Falkendal et al. (2019) |
| Star-formation efficiency (SFE) | 2.74 Gyr−1 |
This work Sect. 4.4.4 |
| Depletion time scale (τdep) | 0.36 Gyr |
This work Sect. 4.4.4 |
| Gas fraction (fgas) | 0.19 ± 0.07 | This work Sect. 4.1 |
| SFR surface density (log ΣSFR) | −0.87 M⊙ kpc−1 | This work Sect. 4.1 |
| Gas surface density (log Σgas) | 1.69 M⊙ pc−1 | This work Sect. 4.1 |
Notes. The systemic redshift is estimated from the redshift of the [C I] line emission at the location of the host galaxy and AGN (region B). The SFR is estimated using the infrared luminosity, LIR, and scaling it using the conversion given in Kennicutt (1998b), but for a Kroupa initial mass function (IMF) (we divided the original conversion factor by 1.5 since the SFR is calculated using a Salpeter IMF in De Breuck et al. 2010).
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.