NRAO: National Radio Astronomy Observatory

About this Image

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.

Investigator(s):  Brogan, Gelfand, Gaensler, Kassim, & Lazio

Alternate Resolutions

Help

This image is available in the following downloadable versions:

• 500 x 492 color JPEG
• 900 x 886 color JPEG
• 2042 x 2010 color TIFF

If you would like to obtain a higher resolution version of this image, please contact Pat Smiley.

For More Information

• Read the Journal article
• Up one level for more info on Supernova_Remnants
• For unfamiliar terms, visit the NRAO Radio Astronomy Glossary

Technical Data

Telescope	VLA
Date of Observation	2004-05-12
Type of Observation	Continuum Observations
Band	P
Wavelength	90 cm
Frequency	330 MHz
Center of Image	RA: 18:05:15.00, Dec: -21:34:0.00 (J2000)
Field of View	1.1667 x 1.1667 degrees
Technical Caption	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).



Astronomical database entries for W30
• Query SIMBAD for more W30 data

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