087101

We propose a 60ks observation for one new GeV bright nova to explore the particle acceleration and gamma-ray production mechanisms. We will constrain the particle acceleration efficiency by comparing thermal X-ray to GeV luminosity and search for predicted non-thermal X-rays. Understanding shocks in novae is relevant for other shock-powered transients including Type IIn supernovae comma tidal disruption events and stellar mergers. NuSTAR is the only instrument capable of detecting X-rays from novae simultaneously with the GeV emission openParthe lower energy X-rays accessible to other focusing instruments are hidden by the nova shell at these timesclosePar. The observations should be conducted now to take advantage of the simultaneous operations with Fermi-LAT.