# Infrared spectroscopy of CK Vulpeculae: revealing a remarkably powerful blast from the past

@article{Banerjee2020InfraredSO,
title={Infrared spectroscopy of CK Vulpeculae: revealing a remarkably powerful blast from the past},
author={D. Banerjee and T. Geballe and A. Evans and M. Shahbandeh and C. Woodward and R. Gehrz and S. Eyres and S. Starrfield and A. Zijlstra},
journal={arXiv: Solar and Stellar Astrophysics},
year={2020}
}
CK Vulpeculae, which erupted in AD 1670-71, was long considered to be a nova outburst; however, recent observations have required that alternative scenarios be considered. Long slit infrared spectroscopy of a forbidden line of iron reported here has revealed high line-of-sight velocities ($\sim\pm900$~km~s$^{-1}$) of the ansae at the tips of the bipolar lobes imaged in H$\alpha$ in 2010. The deprojected velocities of the tips are approximately $\pm2130$~km~s$^{-1}$ assuming the previously… Expand
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