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Title: Radio galaxy IC 4296 (PKS 1333-33). II. Spectroscopy, surface photometry, X-ray imaging, and infrared photometry

Journal Article · · Astrophys. J.; (United States)
DOI:https://doi.org/10.1086/164576· OSTI ID:6836617

Spectroscopic and photometric observations of the radio jet galaxy IC 4296 are presented. The major axis rotation velocities are initially consistent with solid body rotation of angular velocity about 3 km/s/arcsec. Beyond a radius of roughly 20 deg, the rotation is approximately constant at 60 + or - 30 km/s. The velocity dispersion along the major axis shows a maximum of 340 + or - 30 km/s in the nucleus which then decreases with radius. A mass-to-light ratio of (13.2 + or - 3)h in solar units and a mass of (7.3 + or - 3) x 10 to the 11th solar masses are obtained. Color maps show U-B and B-V gradients interior to radius of roughly 10 arcsec. A partialy resolved X-ray source is coincident with IC 4296. 46 references.

Research Organization:
Mount Stromlo and Siding Spring Observatories, Canberra, Australia; National Radio Astronomy Observatory, Charlottesville, VA
OSTI ID:
6836617
Journal Information:
Astrophys. J.; (United States), Vol. 309
Country of Publication:
United States
Language:
English