The effects of metallicity on simulations of the nova outburst

Starrfield, S.; Schwarz, G.; Truran, J. W.; Sparks, W. M.
June 2000
AIP Conference Proceedings;2000, Vol. 522 Issue 1, p379
Academic Journal
We explore the possible effects of the accretion of low metallicity material, on white dwarfs in nova binary systems, on the progress of the outburst. We are motivated both by the observation that an unusually high fraction of the classical novae in the Large Magellanic Cloud (Zapprox. 0.005) are fast novae and a detailed study of LMC 1991 which shows it has Z=0.1Z[sub ⊙] (or less). Our preliminary results indicate the importance, to both theoretical and observational studies of the nova outburst, of determining the mechanism by which the accreted hydrogen-rich envelope is enriched in white dwarf core matter. © 2000 American Institute of Physics.


Related Articles

  • Non-Steady-State Accretion Disks in X-Ray Novae: Outburst Models for Nova Monocerotis 1975 and Nova Muscae 1991. Lipunova, G. V.; Shakura, N. I. // Astronomy Reports;May2002, Vol. 46 Issue 5, p366 

    We have fit outbursts of two X-ray novae (Nova Monocerotis 1975 = A 0620-00 and Nova Muscae GS 1991 = 1124-683) using a non-steady-state accretion-disk model. The model is based on a new solution for a diffusion-type equation for non-steady-state accretion and describes the evolution of a...

  • Multidimensional Nova Simulations. Glasner, Ami; Livne, Eli // AIP Conference Proceedings;2002, Vol. 637 Issue 1, p124 

    We review the history of multidimensional Nova simulations starting with the motivation and first steps of dimensional analysis. A review of the up to date published research is given, summarizing the main conclusions derived from the results of the existing computational tools. We try to...

  • Vorticity Generation in Protoplanetary Disks. Koller, Josef; Hui LI // AIP Conference Proceedings;2004, Vol. 713 Issue 1, p63 

    Global two-dimensional inviscid protoplanetary disk simulation show the generation of vorticity in the co-orbital region of the planet. Emanating shock waves from the planet lead to non-conservation of vorticity along particle paths. As the system evolves, the potential vorticity (PV or...

  • A space Fresnel Imager for ultra-violet astrophysics: example on accretion disks. Raksasataya, Truswin; Gomez de Castro, Ana-Ines; Koechlin, Laurent; Rivet, Jean-Pierre // Experimental Astronomy;Jul2011, Vol. 30 Issue 2/3, p183 

    The Fresnel Diffractive Imager concept is proposed for space borne astronomical imaging at Ultra-Violet wavelengths, using diffractive focalization. The high angular resolution and high dynamic range provided by this new concept makes it an ideal tool to resolve circumstellar structures such as...

  • From Molecular Cores to Stars and Brown Dwarfs. Bate, Matthew R. // Astrophysics & Space Science;2004, Vol. 292 Issue 1-4, p297 

    In this paper, we review the results from numerical simulations that investigate the evolution of molecular cores into stars and brown dwarfs. We begin by discussing the four main processes involved in this evolution, fragmentation, accretion, interactions with discs, and stellar dynamical...

  • Double Relics in the Outskirts of A3376: Accretion Flows Meet Merger Shocks? Kale, Ruta; Dwarakanath, K.; Bagchi, Joydeep; Paul, Surajit // Journal of Astrophysics & Astronomy;Dec2011, Vol. 32 Issue 4, p533 

    The case of spectacular ring-like double radio relics in the merging, rich galaxy cluster A3376 is of great interest to study non-thermal phenomena at cluster outskirts. We present the first low frequency (330 and 150 MHz) images of the double relics using the GMRT. With our GMRT 330 MHz map and...

  • The Effects of Accretion Luminosity on the Environment of the First Stars. Smith, Rowan J.; Clark, Paul C.; Glover, Simon; Klessen, Ralf S. // AIP Conference Proceedings;11/3/2010, Vol. 1294 Issue 1, p285 

    We present initial results from the first three-dimensional simulation of Population III (Pop III) star formation to include accretion luminosity from the central protostar, which is a significant heat source for the inner regions of the accretion disk. To test whether it can suppress...

  • Numerical Methods for Radiative Feedback from the First Stars: Ionization in Adaptive Mesh Refinement Simulations. Oishi, Jeffrey S.; McKee, Chris; Klein, Richard // AIP Conference Proceedings;11/3/2010, Vol. 1294 Issue 1, p270 

    In order to ascertain the final masses of Population III stars, which are believed to be 30-300 M⊙, we must follow the prolonged period of accretion during which these stars are believed to gain the majority of their mass. The key question is, essentially, what terminates accretion, and at...

  • The CaterPillar project - Exploring the dark matter substructure of Milky Way Galaxies. Frebel, Anna; Zukin, Phillip; Dooley, Gregory // AIP Conference Proceedings;9/12/2012, Vol. 1480 Issue 1, p163 

    Galaxies grow hierarchically by accreting smaller objects. The abundance of dark matter substructure in simulated Milky Way like galaxies shows evidence for this assembly process. The luminous satellites of our Galaxy are believed to be the visible counterparts to some of these substructures....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics