Table 2.
Sample of high-redshift starburst galaxies identified in the literature which appear to be undergoing a starburst event during the epoch at which they are observed.
| Literature values |
Estimated quantities |
||||||
|---|---|---|---|---|---|---|---|
| Galaxy ID | z(a) | ℛSF/M⊙ yr−1 | M*/109 M⊙ | τ*/Myr | tSB/Myr | τdyn/Myr (b) | Refs. |
| GN-z11 | 11.1 |
 |
 |
 |
 |
11 | (1) |
| EGS-zs8-1 (c) | 7.73 |
 |
 |
 |
 |
23 | (2, 3) |
| GN-108036 | 7.21 |
 |
 |
 |
 |
61 | (4) |
| SXDF-NB1006-2 | 7.21 |
 |
 |
 |
 |
13 | (5) |
Notes. z is the redshift of observation, ℛSF is the inferred star-formation rate, M* is the estimated total stellar mass, τ* is the estimated characteristic mean age of the stellar population, tSB is the timescale over which star-formation would appear to have been active during the current burst and τdyn is an estimated upper limit for the dynamical timescale of the system. These galaxies are among the most distant known in the Universe, for which suitable information is available regarding the star-formation rate, stellar mass and stellar population.
Redshifts: these redshifts are determined spectroscopically. In all cases, the uncertainty in the observed redshifts of these objects is substantially less than the precision to which these values are quoted.
Dynamical timescales: these are estimates and should be treated as an upper limit. In general the stellar mass was used as a minimum mass to estimate the maximum plausible value of τdyn as estimates of the galaxy mass was not stated or could not be derived from the literature. This is with the exception of SDXF-NB1006-2, where the dynamical mass estimate quoted in ref. (5) was used. Radial estimates were determined either by the half-light radius of the observed system, or the quoted galaxy radius where available.
References. (1) Oesch et al. (2016), (2) Oesch et al. (2015), (3) Grazian et al. (2012), (4) Ono et al. (2012), (5) Inoue et al. (2016).
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