HI + Optical Image of the Integral Sign Galaxy (UGC 3697)

Image courtesy of NRAO/AUI · Download full size image

Composite image of the "Integral Sign'' galaxy, UGC 3697. This edge-on spiral galaxy displays an unusually pronounced warp in both its stellar and gaseous disks. The neutral Hydrogen gas, represented in blue, is overlaid on an optical image of the stellar component of the galaxy. Unlike in normal spiral galaxies, the brightest concentration of neutral Hydrogen is not found near the center of UGC 3697 but along its western edge, where the VLA has detected a bright, extended region of emission in the midplane. In addition, plumes of gas extend to considerable height above and below the disk of the galaxy. Posted on: 04 Nov, 2003

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