Identification of the nucleus in the spiral galaxy NGC 4631

Details Identification of the nucleus in the spiral galaxy NGC 4631 Identification of the nucleus in the spiral galaxy NGC 4631

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pasp...90...28a&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 90, Feb.-Mar. 1978, p. 28-31. Research supported by the Harvard College

Astronomy and Astrophysics

Astronomy

13

Astronomical Photometry, Galactic Nuclei, Infrared Astronomy, Spiral Galaxies, Galactic Structure, Infrared Absorption, Radiant Flux Density, Star Distribution

Scientific paper

Broad-band infrared photometry is presented for the edge-on spiral galaxy NGC 4631. The position of peak infrared intensity is found to lie not on the most optically prominent part of the galaxy, but in the nearby area of strongest dust absorption. This position is discussed in relation to the rotation curve measured by G. and A. de Vaucouleurs, and the radio continuum maps of Pooley. It is concluded that the location of the infrared peak is probably the true position of maximum stellar density, i.e., the nucleus.

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