NGC 4314. I - Visible and short-wavelength infrared surface photometry of the nucleus and bar

Details NGC 4314. I - Visible and short-wavelength infrared surface photometry of the nucleus and bar NGC 4314. I - Visible and short-wavelength infrared surface photometry of the nucleus and bar

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..757b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, March 1992, p. 757-783, 1028-1034.

Astronomy and Astrophysics

Astronomy

34

Astronomical Photometry, Globular Clusters, Infrared Astronomy, Spiral Galaxies, Star Formation, Astronomical Maps, Carbon Monoxide, Charge Coupled Devices, Milky Way Galaxy, Ubv Spectra

Scientific paper

BVI (TI CCD) and JHK (University of Texas IR Camera) surface photometry of NGC 4314, an SB (rs)ap anemic spiral with a nuclear ring containing recent star formation, is presented. The shortwave IR (SWIR) frames reveal a nuclear bar of length 2 arcsec at PA of 0 deg. The nuclear ring and associated dust were detected in all SWIR color indices. A nuclear spiral was detected in the visible and SWIR just exterior to the ring. Extremely low-amplitude spiral-shaped deficits were found in the stellar distribution in the SWIR in this same region. These are attributed to dust, since CO is detectable at or near these locations. Average minor-axis profiles show this galaxy to have a nuclear bulge obeying the de Vaucouleurs r exp 1/4 law for values in the range 2-7 arcsec. The extinction and scattering characteristics of dust near the sites of recent star formation in the nuclear ring are discussed.

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