How far does M101 extend

Details How far does M101 extend How far does M101 extend

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....97l...7d&link_type=abstract

Astronomy and Astrophysics, vol. 97, no. 1, Apr. 1981, p. L7, L8. Research supported by the Centre National d'Etudes Spatiales.

Astronomy and Astrophysics

Astronomy

18

Galactic Structure, Imaging Techniques, Star Clusters, Ultraviolet Astronomy, Galactic Radiation, Spiral Galaxies, Star Distribution, Stellar Magnitude

Scientific paper

It is noted that the image of M101 shows weak, arm-like extended outer structures which are not seen on deep plates obtained with ground-based telescopes. These features are best explained by clusters of young stars with an enhanced proportion of massive stars. It is pointed out, however, that an explanation of these features by dust, associated with the extended clouds of neutral hydrogen and illuminated by the light from the galaxy, cannot be excluded. A definitive assessment of this observation is thought to require further deep UV and visible imagery.

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