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The extended solar neighborhood: precision astrometry from the Pan-STARRS 1 3π Survey

Published online by Cambridge University Press:  01 October 2007

E. A. Magnier ,
M. Liu ,
D. G. Monet  and
K. C. Chambers
E. A. Magnier
Affiliation:
Insitute for Astronomy, University of Hawaii, 2680 Woodlawn Dr., Honolulu, HI 96822, USA email: [email protected], [email protected], [email protected]
M. Liu
Affiliation:
Insitute for Astronomy, University of Hawaii, 2680 Woodlawn Dr., Honolulu, HI 96822, USA email: [email protected], [email protected], [email protected]
D. G. Monet
Affiliation:
USNO, Flagstaff Station, NM, USA email: [email protected]
K. C. Chambers
Affiliation:
Insitute for Astronomy, University of Hawaii, 2680 Woodlawn Dr., Honolulu, HI 96822, USA email: [email protected], [email protected], [email protected]
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Abstract

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The Pan-STARRS pathfinding telescope PS1 will begin a major set of surveys starting in 2008, and lasting for 3.5 years. One of these, the PS1 3π Survey, will repeatedly observe the entire sky north of −30 degrees, visiting every position 12 times in each of 5 filters. With single-epoch astrometry of 10 milliarcseconds, these observations will yield parallaxes for stars within 100 pc and proper motions out to several hundred pc. The result will be an unprecedented view on nearby stellar populations and insight into the dynamical structure of the local portions of the Galaxy. One exciting science product will be a volume-limited sample of nearby low-mass objects including thousands of L dwarfs, hundreds of T dwarfs, and perhaps even cooler sub-stellar objects. Another project will use proper-motion measurements to improve the membership of nearby star forming regions.

Keywords

astrometrysurveysstars: low-massbrown dwarfsstars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 553 - 559
Copyright
Copyright © International Astronomical Union 2008