The optical/near-IR spectral energy distribution of the GRB 000210 host galaxy

/ Authors

J. Gorosabel, L. Christensen, J. Hjorth, J. Fynbo, H. Pedersen, B. Jensen, M. Andersen, N. Lund, A. Jaunsen, J. M. C. Ceron

and 18 more authors

A. C. Tirado, A. Fruchter, J. Greiner, E. Pian, P. Vreeswijk, I. Burud, F. Frontera, L. Kaper, S. Klose, C. Kouveliotou, N. Masetti, E. Palazzi, J. Rhoads, E. Rol, I. Salamanca, Tanvir, R. Wijers, E. V. Heuvel

/ Abstract

We report on UBVRIZJsHKs-band photometry of the dark GRB 000210 host galaxy. Fitting a grid of spectral templates to its Spectral Energy Distribution (SED), we derived a photometric redshift (z=0.842\+0.0540.042) which is in excellent agreement with the spectroscopic one (z=0.8463+/-0.0002; Piro et al. 2002). The best fit to the SED is obtained with a blue starburst template with an age of 0.181\+0.0370.026 Gyr. We discuss the implications of the inferred low value of Av and the age of the dominant stellar population for the non detection of the GRB 000210 optical afterglow.