The Evolution of Nova Ejecta

نویسنده

  • Michael F. Bode
چکیده

In this paper I review the basic parameters of Classical Novae and then move on to describe the evolution of their ejected envelopes. The early shaping of the remnant, thought to be a consequence of a common envelope phase, and with analogies to what may occur in PNe with binary star nuclei, is then described. Finally, the curious case of Nova GK Persei (1901) and its potential to aid our understanding of both nova and long-term PN evolution is discussed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The nature and evolution of Nova Cygni 2006 ⋆ , ⋆ ⋆

Aims. Nova Cyg 2006 has been intensively observed throughout its full outburst. We investigate the energetics and evolution of the central source and of the expanding ejecta, their chemical abundances and ionization structure, and the formation of dust. Methods. We recorded low, medium, and/or high-resolution spectra (calibrated into accurate absolute fluxes) on 39 nights, along with 2353 photo...

متن کامل

Optical and Near - Infrared spectroscopy of Nova V 1494

Optical and near-infrared spectroscopic observations of the fast nova V1494 Aquilae 1999 # 2 covering various phases – early decline, transition and nebular – during the first eighteen months of its post-outburst evolution are presented in this paper. During this period, the nova evolved in the PfeP o fe Co spectral sequence. The transition from an optically thick wind to a polar blob equatoria...

متن کامل

The chemical pollution of the secondary of a cataclysmicvariable

We study the chemical evolution of population I and population II secondaries in cata-clysmic variables (CVs) assuming that during nova explosions a part of the high metal-licity nova ejecta is intercepted by the secondary and mixed into its convective envelope. We derive analytic expressions for the chemical composition of the secondary's envelope as a function of the chemical composition of t...

متن کامل

The Effects of Changes in Reaction Rates on Simulations of Nova Explosions

Classical novae participate in the cycle of Galactic chemical evolution in which grains and metal enriched gas in their ejecta, supplementing those of supernovae, AGB stars, and WolfRayet stars, are a source of heavy elements for the ISM. Once in the diffuse gas, this material is mixed with the existing gases and then incorporated into young stars and planetary systems during star formation. In...

متن کامل

Dynamical and Thermal Evolution of the Quark-nova Ejecta

We explore the dynamical and thermal evolution of the ejected neutron star crust in a QuarkNova explosion. Typical explosion energies and ejected crust masses result in relativistic ejection with Lorentz factors of a few to a few hundred. The ejecta undergoes a rapid cooling and stretching resulting in break up into many small pieces (clumps) when the ejecta is only ∼ 100 km from the explosion ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003