Rates and Progenitors of Type Ia Supernovae by
نویسندگان
چکیده
Rates and Progenitors of Type Ia Supernovae
منابع مشابه
The Effect of Different Type Ia Supernova Progenitors on Galactic Chemical Evolution
Aims. Our aim is to show how different hypotheses about Type Ia supernova progenitors can affect Galactic chemical evolution. Supernovae Ia, in fact, are believed to be the main producers of Fe and the timescale with which Fe is restored into the interstellar medium depends on the assumed supernova progenitor model. This is a way of selecting the right progenitor model for supernovae Ia, a stil...
متن کاملRates and Delay times of Type Ia Supernovae
We analyze the evolution of binary stars to calculate synthetic rates and delay times of the most promising Type Ia Supernovae progenitors. We present and discuss evolutionary scenarios in which a white dwarf reaches the Chandrasekhar-mass and potentially explodes in a Type Ia supernova. We consider: Double Degenerate (DDS; merger of two white dwarfs), Single Degenerate (SDS; white dwarf accret...
متن کاملSearch for Double Degenerate Progenitors of Supernovae Type Ia with Spy
We report on a large survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY – SPY).
متن کامل/ 98 01 00 5 v 1 2 J an 1 99 8 Galaxy Evolution and the Cosmic Rate of Supernovae
Ongoing searches for supernovae (SNe) at cosmological distances have recently started to provide a link between SN Ia statistics and galaxy evolution. In this talk I will use recent estimates of the global history of star formation to compute the theoretical Type Ia and Type II SN rates as a function of cosmic time. I will compare the predicted values with the rates observed in the range 0 ≤ z ...
متن کاملOn the Evolution of the Cosmic Supernova Rates
Ongoing searches for supernovae (SNe) at cosmological distances have recently started to provide a link between SN Ia statistics and galaxy evolution. We use recent estimates of the global history of star formation to compute the theoretical Type Ia and Type II SN rates as a function of cosmic time from the present epoch to high redshifts. We show that accurate measurements of the frequency of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004