Simulated X-Ray Emission for a Runaway Model of Kepler's Supernova Remnant

VELÁZQUEZ, PABLO F.; VIGH, CARLOS D.; REYNOSO, ESTELA M.; GÓMEZ, DANIEL O.; SCHNEITER, E. MATÍAS

ASTROPHYSICAL JOURNAL

Año: 2006 vol. 649 p. 779 - 779

0004-637X

e present two-dimensional numerical simulations of a model for Kepler's supernova remnant (SNR) carried out with the YGUAZÚ-A code. Following previous studies, we have assumed that the peculiar shape of this young remnant arises as a consequence of the interaction of the SNR blast wave with the bow shock formed by the wind of its high velocity progenitor. Furthermore, from our numerical results we have obtained synthetic X-ray emission maps, which can be directly compared with recent and previous observations of this SNR. Our models show that a nice fit with respect to the X-ray morphology and luminosity is obtained for a SN progenitor with mass-loss rate of 5×10-5 Msolar yr-1, an ambient medium density of 10-2 cm-3, an initial explosion energy of 8×1050 ergs, and a total ejected mass within 1.4-2.5 Msolar. In our simulations, parameters typical of a young population progenitor have not been con