Radio Galaxy 3C296 Radio/Optical Superposition

https://www.nrao.edu/archives/plugins/Dropbox/files/3c296_20cm_opt.jpg

Description

This is a false-color image of the radio galaxy 3C296, associated with the elliptical galaxy NGC5532. Blue colors show the distribution of stars, made from an image from the Digitized Second Palomar Sky Survey, and red colors show the radio radiation as imaged by the VLA, measured at a wavelength of 20cm. Several other galaxies are seen in this image, but are not directly related to the radio source. The radio emission is from relativistic streams of high energy particles generated by the radio source in the center of the radio galaxy. Astronomers believe that the jets are fueled by material accreting onto a super-massive black hole. The high energy particles are confined to remarkably well collimated jets, and are shot into extragalactic space at speeds approaching the speed of light, where they eventually balloon into massive radio lobes. The plumes in 3C296 measure 150 kpc or 480,000 light years edge-to-edge diameter (for a Hubble constant of 100 km/s/Mpc).
FR I (plumed) radio galaxy at z=0.0237. VLA 1.45 GHz image at 4.9 arcsec resolution.

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

3C296

Photographer

Optical/radio superposition by Alan Bridle

Investigators

J.P. Leahy, R.A. Perley.

Telescope

Very Large Array (VLA)
Digitized Second Palomar Sky Survey

Observation Date

1987-12-02

Type of Observation

continuum

Band

L

Wavelength

20 cm

Frequency

1.4 GHz

Center of Image

RA 14:16:53.200, Dec: 10:48:11.000 (J2000)

Field of View

0.133300 x 0.133300 degrees

Link to journal article

Series

Active Galactic Nuclei Series

Unit

Radio Galaxies Unit

Citation

Legacy Astronomical Images, “Radio Galaxy 3C296 Radio/Optical Superposition,” NRAO Archives, accessed December 3, 2021, https://www.nrao.edu/archives/items/show/33368.