Weakly barred early-type ringed galaxies. IV. The double-ringed SO(+) galaxy NGC 7702

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169797· OSTI ID:5701431

Buta, R ^[1]

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1. Alabama Univ., Tuscaloosa (USA)

UBVRI surface photometry of NGC 7702, obtained with a CCD detector on the 3.9-m Anglo-Australian Telescope and with photographic plates on the 4-m telescope at CTIO, is reported. The data are presented in tables, graphs, and contour maps and characterized in detail. NGC 7702 is found to be a true S0(+) galaxy with a bright high-contrast inner ring and a faint low-contrast outer ring; the inner ring is significantly elongated relative to typical SB inner rings and has colors which suggest a burst of star formation less than 2 Gyr ago. A small oval revealed by the bulge isophotes in the inner 4 arcsec radius is attributed to a nuclear bar. 52 refs.

• OSTI ID: 5701431
• Journal Information: Astrophysical Journal; (USA), Vol. 370; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
MORPHOLOGY
CHARGE-COUPLED DEVICES
DATA
GALACTIC EVOLUTION
PHOTOMETRY
RINGS
INFORMATION
SEMICONDUCTOR DEVICES
640105* - Astrophysics & Cosmology- Galaxies