Infrared mapping and UBVRi photometry of the spiral galaxy NGC 1566

Details Infrared mapping and UBVRi photometry of the spiral galaxy NGC 1566 Infrared mapping and UBVRi photometry of the spiral galaxy NGC 1566

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...265..643h&link_type=abstract

Astrophysical Journal, Part 1, vol. 265, Feb. 15, 1983, p. 643-647.

Astronomy and Astrophysics

Astronomy

56

Astronomical Photometry, Galactic Structure, Infrared Astronomy, Spiral Galaxies, Ubv Spectra, Astronomical Maps, Brightness, Ultraviolet Photometry, Visual Photometry

Scientific paper

J, H, and K IR maps, U, B, and I photographs, and photoelectric UBVRiJHK measurements, are presented for 15 areas in the central part of NGC 1566. Although the IR bar shown by the H (1.6 micron) map is invisible in the UV and only slightly visible in the blue, it is found to produce azimuthal brightness variations (of up to + or - 25% around the mean level) in H which may reflect similar variations in the surface mass density. The exceptionally red color of the bar approximately matches that of an empirical galaxy of M(V) = about -20. The strong spiral pattern also seen in H is presumably related to the presence of the IR bar.

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