2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8309Detection of X-ray emission from classical novae in their post-outburst stages provides crucial information about the nova phenomenon. The soft X-ray emission gives a direct insight into the remaining hot nuclear burning shell. A numerical model for steady H-burning white dwarf envelopes has been developed to study the post-outburst phases of classical novae. Properties of the X-ray emission of the post-nova white dwarf are obtained, and the results are compared to ROSAT observations of V1974 Cyg.2 pages. To appear in "The astrophysics of cataclysmic variables and related objects", ASP Conf. Ser., eds. J.M. Hameury and J.P. LasotaAstrophysicstext