The remarkable extragalactic research of Erik Holmberg

Details The remarkable extragalactic research of Erik Holmberg The remarkable extragalactic research of Erik Holmberg

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99..921r&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, Sept. 1987, p. 921-951.

Statistics

Computation

3

Galactic Structure, Gravitational Fields, Intergalactic Media, Milky Way Galaxy, Spiral Galaxies, Stellar Luminosity, Computational Astrophysics, Luminous Intensity

Scientific paper

The many accomplishments of Erik Holmberg in the area of astronomy are outlined. In 1946, Eric Holmberg demonstrated that the size, shape, and integrated luminosity of a galaxy derived from measurements performed on its photographic image are more accurately determined with a photoelectric microphotometer than with visual methods alone. He found that the luminosity function depends on the morphological type of a galaxy and that the surface density of satellites in the polar sectors of a spiral galaxy is larger than in the equatorial sectors at corresponding radial intervals.

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