Tootfinder

First joint absorption and T$_e$-based metallicity measured in a GRB host galaxy at $z=4.28$ using JWST/NIRSpec
Anne Inkenhaag, Patricia Schady, Phil Wiseman, Robert M. Yates, Maryam Arabsalmani, Lise Christensen, Valerio D'Elia, Massimiliano De Pasquale, Rub\'en Garc\'ia-Benito, Dieter H. Hartmann, P\'all Jakobsson, Tanmoy Laskar, Andrew J. Levan, Giovanna Pugliese, Andrea Rossi, Ruben Salvaterra, Sandra Savaglio, Boris Sbarufatti, Rhaana L. C. Starling, Nial Tanvir, B…

First joint absorption and T$_e$-based metallicity measured in a GRB host galaxy at $z=4.28$ using JWST/NIRSpec
We present the first gamma-ray burst (GRB) host galaxy with a measured absorption line and electron temperature (T$_e$) based metallicity, using the temperature sensitive [OIII]$λ$4363 auroral line detected in the JWST/NIRSpec spectrum of the host of GRB 050505 at redshift $z=4.28$. We find that the metallicity of the cold interstellar gas, derived from the absorption lines in the GRB afterglow, of 12 + log(O/H)$\sim 7.7$ is in reasonable agreement with the temperature-based emission line meta…