2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/5291We have observed the radio-quiet X-ray pulsar 1E 1207.4-5209 with the high throughput EPIC cameras onboard XMM-Newton. The spectrum of this peculiar source is characterized by two broad absorption features which present significant substructures and show a clear phase-dependence. We believe that these features represent a strong evidence for the presence of a magnetized atmosphere containing heavy elements.5 pages, 3 eps figures. To appear in "Radio Pulsars" (ASP Conf. Ser.), eds M. Bailes, D. Nice, & S. Thorsett. Figures have been enlargedAstrophysicstext