Distance estimation of the LMC, SMC, and M33 from the apparent radius distribution of H II-regions

Details Distance estimation of the LMC, SMC, and M33 from the apparent radius distribution of H II-regions Distance estimation of the LMC, SMC, and M33 from the apparent radius distribution of H II-regions

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.125...43i&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 125, no. 1, Aug. 1986, p. 43-48.

Astronomy and Astrophysics

Astrophysics

1

Astrometry, Distance, H Ii Regions, Magellanic Clouds, Spiral Galaxies, Density (Number/Volume), Density Distribution, Least Squares Method, Radii

Scientific paper

Published data and size measurement of the H-II regions and dark clouds are used to estimate distances of 42.66 + or 2.51 kpc for LMC, 89.73 + or - 5.03 kpc for SMC, and 755.11 + or - 47.14 kpc for M33. The method provides a means to test the accuracy of the distance through the sizes of the Stromgren spheres, and its geometrical character results in distance estimates of greater accuracy than those derived based on photometric measurements.

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