3 color image of W30

https://www.nrao.edu/archives/plugins/Dropbox/files/w30_hi.jpg

Description

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).

Creator

Legacy Astronomical Images

Rights

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

Type

Legacy Astronomical Image

Object Name

W30

Photo Credit

Brogan et al.

Investigators

Brogan, Gelfand, Gaensler, Kassim, Lazio

Telescope

Very Large Array (VLA)

Observation Date

2004-05-12

Type of Observation

continuum

Band

P

Wavelength

90 cm

Frequency

330 MHz

Center of Image

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

Field of View

1.166667 x 1.166667 degrees

Link to journal article

Notes

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

Series

Galactic Sources Series

Unit

Supernova Remnants Unit

Citation

Legacy Astronomical Images, “3 color image of W30,” NRAO Archives, accessed December 3, 2021, https://www.nrao.edu/archives/items/show/33518.