Near-infrared surface photometry and morphology in virgo cluster spiral galaxy nuclear regions

Details Near-infrared surface photometry and morphology in virgo cluster spiral galaxy nuclear regions Near-infrared surface photometry and morphology in virgo cluster spiral galaxy nuclear regions

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109.1608r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 109, no. 4, p. 1608-1627

Astronomy and Astrophysics

Astronomy

19

Active Galactic Nuclei, Astronomical Photometry, Galactic Structure, Infrared Astronomy, Morphology, Near Infrared Radiation, Virgo Galactic Cluster, Astronomical Models, Charge Coupled Devices, High Resolution, Infrared Imagery, Many Body Problem, Spatial Resolution

Scientific paper

This paper presents very high spatial resolution (seeing 0.75 arcsec FWHM) K band surface photometry of 15 Virgo cluster spiral galaxy nuclear regions (radii less then 1 kpc). It presents B and I CCD images of 13 of these galaxies. The goals of the study were: (1) to begin to establish a K band baseline of normal spiral galaxy nuclear regions against which peculiar galaxies may be compared, (2) to provide better contsraints on N-body models, and (3) to complement near-infrared studies of large scale structure in spiral galaxies with very high resolution imaging of the important nuclear regions. The principle findings are (1) between 1/4 and 1/3 of these nuclear regions show K band evidence of traxiality, (2) approximately 1/2 of these galaxies have axisymmetric nuclear regions, and (3) NGC 4321 has a bar that is not detectable in the optical images.

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