Intramolecular photoinduced electron-transfer in azobenzene-perylene diimide

Wen-Ke Feng, Yi-Yu Feng, Shu-Feng Wang, Wei Feng, Wen-Hui Yi, Qi-Huang Gong
2010 Chinese Physics B  
We examine dust formation in macronovae (as known as kilonovae), which are the bright ejecta of neutron star binary mergers and one of the leading sites of r-process nucleosynthesis. In light of information about the first macronova candidate associated with GRB 130603B, we find that dust grains of r-process elements have difficulty forming because of the low number density of the r-process atoms, while carbon or elements lighter than iron can condense into dust if they are abundant. Dust
more » ... absorb emission from ejecta with an opacity even greater than that of the r-process elements, and re-emit photons at infrared wavelengths. Such dust emission can potentially account for macronovae without r-process nucleosynthesis as an alternative model. This dust scenario predicts a spectrum with fewer features than the r-process model and day-scale optical-to-ultraviolet emission.
doi:10.1088/1674-1056/19/11/113401 fatcat:yg545ffzbve5bb7oxkghx3t3fy