Early Spectral Evolution of Classical Novae: Consistent Evidence for Multiple Distinct Outflows

@article{Aydi2020EarlySE,
  title={Early Spectral Evolution of Classical Novae: Consistent Evidence for Multiple Distinct Outflows},
  author={Elias Aydi and Laura Chomiuk and Luca Izzo and E J Harvey and J. Leahy-McGregor and Jay Strader and David A H Buckley and Kirill V. Sokolovsky and Adam Kawash and Christopher S. Kochanek and Justin D. Linford and Brian D. Metzger and Koji Mukai and Marina Orio and Benjamin. J. Shappee and Laura Shishkovsky and Elad Steinberg and Samuel J. Swihart and J. L. Sokoloski and Frederick M. Walter and Patrick A. Woudt},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2020}
}
The physical mechanism driving mass ejection during a nova eruption is still poorly understood. Possibilities include ejection in a single ballistic event, a common envelope interaction, a continuous wind, or some combination of these processes. Here we present a study of 12 Galactic novae, for which we have pre-maximum high-resolution spectroscopy. All 12 novae show the same spectral evolution. Before optical peak, they show a slow P Cygni component. After peak a fast component quickly arises… Expand
Surveying the X-Ray Behavior of Novae as They Emit γ-Rays
The detection of GeV γ-ray emission from Galactic novae by the Fermi-Large Area Telescope has become routine since 2010, and is generally associated with shocks internal to the nova ejecta. TheseExpand
AT 2019qyl in NGC 300: Internal Collisions in the Early Outflow from a Very Fast Nova in a Symbiotic Binary
  • J. Jencson, Jennifer E. Andrews, +39 authors Nathan Smith
  • Physics
  • The Astrophysical Journal
  • 2021
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