2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/1305In response to the comments of astro-ph/0006426 on Srikanth (Icarus 1999), we clarify, and thereby justify, the definition of Poynting-Robertson drag adopted in the latter. We confirm that dust absorption is a necessary condition while re-emission is neither necessary nor sufficient for the inspiralling of a rest-isotropically emitting dust.Typographical error in a reference correctedAstrophysicstext