New Limits on the Low-frequency Radio Transient Sky Using 31 hr of All-sky Data with the OVRO–LWA

  title={New Limits on the Low-frequency Radio Transient Sky Using 31 hr of All-sky Data with the OVRO–LWA},
  author={Marin M. Anderson and Gregg W. Hallinan and Michael W. Eastwood and Ryan M. Monroe and Thomas A. Callister and Jayce Dowell and Brian Hicks and Yuping Huang and Namir E. Kassim and Jonathon Kocz and T. Joseph W. Lazio and Danny C. Price and Frank K. Schinzel and Gregory B. Taylor},
  journal={The Astrophysical Journal},
We present the results of the first transient survey from the Owens Valley Radio Observatory Long Wavelength Array (OVRO–LWA) using 31 hr of data, in which we place the most constraining limits on the instantaneous transient surface density at timescales of 13 s to a few minutes and at frequencies below 100 MHz. The OVRO–LWA is a dipole array that images the entire viewable hemisphere with 58 MHz of bandwidth from 27 to 84 MHz at 13 s cadence. No transients are detected above a 6.5σ flux… 

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