Detectability of Long GRB Afterglows From Very High Redshifts

摘要

Detectability of high redshift GRB afterglows are carefully discussed. Using standard assumptions, we find that Chandra, XMM and Swift XRT can potentially detect GRBs in the X-ray band out to very high redshifts z approx.< 30. In the K and M bands, the JWST and ground-based telescopes are potentially able to detect GRBs even one day after the trigger out to z ~ 16 and 33.