The galactic luminous supersoft X-ray source RXJ0925.7-4758/MR Vel

A steady-state model has been considered to explain the observed properties of the LSSS RXJ0925.7-4748/MR Vel. The steady-state models consist of a C-O core surrounded by a hydrogen-rich envelope of the solar abundances. At the bottom of the envelope, hydrogen is burned at the same rate as the star accreted it. Using the most recent proton capturing reaction rates and beta-decay rates, the cyclic reactions have been studied. In the present work, effort has been made to explain the observed characteristics of the source RXJ0925.7-4758/MR Vel considering the above mentioned model. The calculated values of luminosity (8.56 x 10(37) erg s(-1)) and effective temperature (94.19 eV) tally well with the observed one. Photoionisation code CLOUDY has been used to explain the observed absorption edges in the spectrum of RXJ0925.7-4758/MR Vel.