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arXiv · 2107.05763

The Detailed Light Curve Evolution of V1674 Her (Nova Her 2021)

R. M. Quimby·A. W. Shafter·H. Corbett
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Abstract

We report high-cadence photometry of the ultra-fast ($t_2\sim1.2$ d) nova V1674 Her during its rise to maximum light ($V\sim6.3$) and the beginning of its subsequent decline. These observations from Evryscope and the Mount Laguna Observatory All-Sky Camera reveal a plateau in the pre-maximum light curve at $g\sim14$ ($\sim$8 mag below peak) that lasted for at least three hours. Similar features (so-called pre-maximum halts) have been observed in some novae near maximum light, but to our knowledge the detection of a plateau in the light curve $\sim$8 mag below peak is unprecedented.

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R. M. Quimby, A. W. Shafter, H. Corbett. 2021-07-12. The Detailed Light Curve Evolution of V1674 Her (Nova Her 2021). https://arxiv.org/abs/2107.05763

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