Glossary

Age

age of the stellar population in Myr

Emission line fluxes

corrected for the Galactic dust extinction, expressed in units of 10-17ergs s-1 cm-2. Host dust extinction and stellar Balmer absorption corrections are not applied

Galactic dust extinction

extinction due to dust in the Milky Way along the GRB line of sight , expressed as a color excess EB-V

GRB

gamma-ray burst name

Luminosity distance

for the cosmology with H0= 70 km s-1 Ωm = 0.3 & ΩΛ = 0.7

log(M_∗/M_☉)

stellar mass in solar units, as measured from the optical-NIR photometry

Redshift

redshift of the host galaxy or GRB afterglow

SED

spectral energy distribution of the host galaxy, corrected for the Galactic dust extinction

A_V

Optical extinction in the host galaxy, as measured from Balmer decrement

log(Z/Z_☉)

Log of metal content in solar units, as measured from emission lines or absorption lines

SFR

Star formation rate in the host galaxy, in units of M_☉ yr^-1, as measured from optical emission lines or UV emission

SSFR

Specific star formation rate in the host galaxy (SFR divided by total stellar mass), in units of Gyr^-1

T₉₀

Duration of γ-ray emission of GRB, the time interval over which 90% of the total counts are observed