3 color image of W30

This is a 3-color image of the region surrounding the W30 supernova remnant (SNR) that is located in our Galaxy. In this image blue=Very Large Array (VLA) 90cm, red=MSX 8 microns, and green=Southern Galactic Plane Survey + VLA 20cm data. This image was created to look for new supernova remnants through their non-thermal (synchrotron) radio emission. Non-thermal sources in these images are primarily blue in color, while massive star forming regions composed of thermal ionized hydrogen gas are white to cyan; warm thermal dust emission is red. Previously, only the W30 SNR was known in this field of view, using this image we have discover two new ones.

The VLA 90cm data is composed of B, C, and D configuration data and has a resolution of 42" (Brogan et al. 2006). The combined Southern Galactic Plane Survey (McClure-Griffiths et al. 2005) and VLA (Helfand et al. 2005) 20cm data has a resolution of 70" x 37". The MSX 8 micron data has a resolution of 20" (Price et al. 2001).

Legacy Astronomical Images

NRAO/AUI/NSF does not hold full copyright for this image. Contact the archivist for details.

Legacy Astronomical Image

W30

Brogan et al.

Brogan, Gelfand, Gaensler, Kassim, Lazio

Very Large Array (VLA)

2004-05-12

continuum

P

90 cm

330 MHz

RA 18:5:15.000, Dec: -21:34:0.000 (J2000)

1.166667 x 1.166667 degrees

Contact the archivist for a high resolution tif of this image.

Galactic Sources Series

Supernova Remnants Unit