Finding the Missing Remnants: A Low Frequency VLA Survey of the Galactic Plane from l = 4

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Finding the Missing Remnants A Low Frequency VLA
Survey of the Galactic Plane from l 4 to 23
C. L. Brogan (IfA), B. M. Gaensler (CfA), Y.
Gelfand (CfA), M. S. E. Roberts (McGill), T. J.
Lazio (NRL), N. E. Kassim (NRL)
SNR G18.80.3
HII W31
HII W33
SNR W28
SNR W30
SNR G21.8-0.6
HII M17
SNR G18.9-1.1
HII M16

• VLA 330 MHz mosaic composed of CD configuration
  data.
• The resolution is 3x2 and the rms noise is 50
  mJy/beam. The mosaic is made up of 14 separate
  pointings, 3 from the VLA archive (regions near
  W28, W30, and G21.8-0.6).
• When both resolution and sensitivity are
  considered together this image is superior to any
  previous survey of this part of the Galactic
  plane for n lt 2 GHz.
• So far we have more than 20 new SNR candidates!