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astro-ph2006★ 14 cited
The host galaxy of GRB 011121: Morphology and Spectral Energy Distribution
Aybuke Kupcu Yoldas, Mara Salvato, Jochen Greiner +3
(Abridged) We present a detailed study of the host galaxy of GRB 011121 (at z = 0.36) based on high-resolution imaging in 5 broad-band, optical and near-infrared filters with HST a…
astro-ph2006★ 11 cited
Constraining the environment of GRB 990712 through emission line fluxes
Aybuke Kupcu Yoldas, Jochen Greiner, Rosalba Perna
The energy output in the gamma-ray burst (GRB) prompt emission and afterglow phase is expected to photoionize the surrounding medium out to large radii. Cooling of this gas produce…