3D photoionization models of nova V723 Cas

Abstract

We present modeling and analysis of the ejecta of nova V723 Cas based on spatially resolved IR spectroscopic data from Keck-OSIRIS, with LGSAO (adaptive optics module). The 3D photoionization models include the shell geometry taken from the observations and an anisotropic radiation field, composed by a spherical central source and an accretion disk. Our simulations indicate revised abundances $log(N_{Al}/N_H)=-5.4$, $log(N_{Ca}/N_H)=-6.4$ and $log(N_{Si}/N_H)=-4.7$ in the shell. The total ejected mass was found as $M_{shell}=1.1\times 10^{-5}$ $M_{\odot }$ and the central source temperature and luminosity are $T=280,000$ $K$ and $L=10^{38}$ $erg/s$. The 3D models are compared to basic 1D simulations to demonstrate the importance of using more realistic treatments, stressing the differences in the shell mass, abundances and characterization of the central source. The possibility of V723 Cas being a neon nova and the puzzling central source features found are discussed.

References in corpus (10)

• The chemical composition of the Sun
• The 2013 Release of Cloudy
• A grid of synthetic ionizing spectra for very hot compact stars from NLTE model atmospheres
• Surface Hydrogen Modeling of Super Soft X-ray Sources: Are They Supernova Ia Progenitors?
• Hubble Space Telescope imaging and ground-based spectroscopy of old nova shells - I. FH Ser, V533 Her, BT Mon, DK Lac, V476 Cyg
• The UBV Color Evolution of Classical Novae. I. Nova-Giant Sequence in the Color-Color Diagram
• New Elemental Abundances for V1974 Cygni
• HR Del remnant anatomy using 2-D spectral data and 3-D photoionization shell models
• The Distance and Morphology of V723 Cassiopeiae (NOVA CASSIOPEIA 1995)
• V723 Cas (Nova Cassiopeiae 1995): MERLIN observations from 1996 to 2001

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