Despite its probable occurrence in Nature, the accretion-induced collapse (AIC) of a white dwarf has not yet been directly observed (or, at least, it has not been unambiguously identified as such). In this contribution we summarize the observational signatures of AIC, emphasizing its possible role as both an optical and high-energy transient.
@article{arxiv.0908.1127,
title = {Observable Signatures of the Accretion-Induced Collapse of White Dwarfs},
author = {B. D. Metzger and A. L. Piro and E. Quataert and T. A. Thompson},
journal= {arXiv preprint arXiv:0908.1127},
year = {2009}
}