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MINIMO: A Search for Mini Proper Motion Stars in the Southern Sky

Finch, Charlie Thomas
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Abstract

I report 1684 new proper motion systems in the southern sky (declinations -90 degrees to -47 degrees) with 0.50 arcsec/yr > mu >= 0.18 arcsec/yr. This effort is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion search to lower proper motions than reported in Hambly et al. (2004); Henry et al. (2004); Subasavage et al. (2005a,b). Distance estimates are presented for the new systems, assuming that all stars are on the main sequence. I find that 34 systems are within 25 pc, including three systems --- SCR 0838-5855, SCR 1826-6542, and SCR 0630-7643AB --- anticipated to be within 10 pc. These mini-motion (MINIMO) discoveries constitute a more than ten-fold increase in new systems found in the same region of sky searched for systems with mu >= 0.50 arcsec/yr, suggesting a happy hunting ground for new nearby slower proper motion systems in the region just north (declinations -47 degrees to 0 degrees), much of which has not been rigorously searched during previous efforts.

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Date
2007-05-03
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Research Projects
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Keywords
Solar Neighborhood, Statistics, Distances, Surveys, Astrometry, Stars, Proper Motion
Citation
Finch, Charlie Thomas. "MINIMO: A Search for Mini Proper Motion Stars in the Southern Sky." Thesis, Georgia State University, 2007. https://doi.org/10.57709/1059798
Embargo Lift Date
2012-01-27
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