3C31 = B0104+321

• Red: VLA radio images; Blue: optical images
• Left: VLA λ21cm image at 5.5 arcsec FWHM resolution superposed on Palomar Sky Survey blue image
• Right: VLA λ3.6cm radio image at 0.25 arcsec FWHM resolution superposed on Hubble Space Telescope WFPC2 image
• FR I (plumed) radio galaxy at z = 0.017 (70 Mpc, H = 71 km/s/Mpc, Ω_m = 0.27, Ω_Λ = 0.73)
• Linear scale 340 pc/arcsec
• Dusty elliptical host galaxy
• Other images of 3C31 available here:
• Inner jets at high resolution (radio only)
• Wide field optical-radio superposition (left panel only)
• Large scale radio image, showing outer plumes
• Gradient image, showing filaments and jet edges

Wide field radio data of Robert Laing, Alan Bridle, Paola Parma, Luigina Feretti, Gabriele Giovannini, Matteo Murgia, and Rick Perley, MNRAS, 386, 657-672 (2008).

HST/WFPC2 image from Martel et al., Astrophysical Journal Supplements, vol. 122, p. 81-108 (1999)

Superpositions made using AIPS task TVRGB by Alan Bridle

The high-resolution radio data were modeled as a decelerating relativistic jet by Laing, R.A. and Bridle, A.H. (2002), MNRAS, 336, 328-352 (2002).

Go back to:

• Alan Bridle's Image Gallery
• Alan Bridle's Home Page
• NRAO Charlottesville Home Page
• NRAO VLA Home Page

Last updated:  12 June 2014, 14:20 EDT