The Origin of Type Ib-Ic-IIb-IIL Supernovae and Binary Star Evolution
نویسندگان
چکیده
منابع مشابه
CIRCUMSTELLAR EMISSION FROM TYPE Ib AND Ic SUPERNOVAE
The presumed Wolf-Rayet star progenitors of Type Ib/c supernovae have fast, low density winds and the shock waves generated by the supernova interaction with the wind are not expected to be radiative at typical times of observation. The injected energy spectrum of radio emitting electrons typically has an observed index p = 3, which is suggestive of acceleration in cosmic ray dominated shocks. ...
متن کاملA Radio Survey of Type Ib and Ic Supernovae: Searching for Engine Driven Supernovae
The association of γ-ray bursts (GRBs) and core-collapse supernovae (SNe) of Type Ib and Ic was motivated by the detection of SN1998bw in the error box of GRB980425 and the now-secure identification of a SN1998bw-like event in the cosmological GRB030329. The bright radio emission from SN1998bw indicated that it possessed some of the unique attributes expected of GRBs, namely a large reservoir o...
متن کاملOn the nature of supernovae Ib and Ic
Utilizing non-local thermodynamic equilibrium time-dependent radiative-transfer calculations, we investigate the impact of mixing and non-thermal processes associated with radioactive decay on Type IIb/Ib/Ic supernova (SN IIb/Ib/Ic) light curves and spectra. Starting with short-period binary models of 5 M helium-rich stars, originally 18 and 25 M on the main sequence, we produce 1.2 B ejecta wh...
متن کاملthe investigation of the relationship between type a and type b personalities and quality of translation
چکیده ندارد.
Binary Evolution of Type Ia Supernovae
Observations of Type Ia supernovae (SN Ia) combined with modeling of dynamics, light curves and spectra continue to point to the difficult conclusion that SN Ia result from degenerate ignition in a carbon/oxygen white dwarf of the Chandrasekhar mass. Such a model accounts well for the “normal” SN Ia and for the observed dispersion exemplified by the light curve amplitude-shape relation. The cri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1996
ISSN: 0074-1809
DOI: 10.1017/s0074180900055613