Dark mass moments

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May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250..348d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, May 15, 1991, p. 348-355.

Astronomy and Astrophysics

Astronomy

53

Dark Matter, Galactic Mass, Gravitational Lenses, Magellanic Clouds, Milky Way Galaxy, Line Of Sight, Mass Distribution, Star Distribution

Scientific paper

Massive-halo objects (MHOs) crossing close to the line-of-sight of a more distant and 'fixed' star will gravitationally 'microlense' that star's image, thereby generating a time-dependent achromatic magnification of predictable shape. Observations currently being prepared to monitor about 1 million stars in the LMC over the course of a year will either establish or exclude a halo dark mass constituency in the 10 to the -6th to 0.1 solar mass range. Discoveries will then be investigated for MHO mass distributions which are expected to lie deeply concealed in the raw data by convolutions with the distribution of unobservable quantities describing individual MHOs' motion and position.

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