A New Kinematic Distance Estimator to the LMC
arXiv:astro-ph/9906021 · doi:10.1086/308169
Abstract
The distance to the Large Magellanic Cloud (LMC) can be directly determined by measuring three of its properties, its radial-velocity field, its mean proper motion, and the position angle ϕ_ph of its photometric line of nodes. Statistical errors of 2% are feasible based on proper motions obtained with any of several proposed astrometry satellites, the first possibility being the Full-Sky Astrometric Mapping Explorer (FAME). The largest source of systematic error is likely to be in the determination of ϕ_ph. I suggest two independent methods to measure ϕ_ph, one based on counts of clump giants and the other on photometry of clump giants. I briefly discuss a variety of methods to test for other sources of systematic errors.
submitted to ApJ, 13 pages
References in corpus (1)
Cited by in corpus (9)
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