Highlights from Ground-Based O/IR Interferometers

Details Highlights from Ground-Based O/IR Interferometers Highlights from Ground-Based O/IR Interferometers

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21347416a&link_type=abstract

American Astronomical Society, AAS Meeting #213, #474.16; Bulletin of the American Astronomical Society, Vol. 41, p.430

Astronomy and Astrophysics

Astrophysics

Scientific paper

Ground-based optical/infrared long-baseline interferometry has continued to extend its capabilities in the U.S., where several existing facilites demonstrate its capabilites in a broad range of scientific applications. This poster presents brief overviews of the CHARA Array and the Infrared Spatial Interferometer (ISI) on Mt. Wilson, CA; the Palomar Testbed Interferometer (PTI) on Mt. Palomar, CA; the Navy Prototype Optical Interferometer (NPOI) located on Anderson Mesa near Flagstaff, AZ; and the Keck Interferometer (KI) on Mauna Kea, HI; as well as the Magdalena Ridge Observatory Interferometer (MROI) now under construction at the highest elevation of the Magdalena Mountains of New Mexico. The poster also includes pointers to a small fraction of the scientific results from U.S. interferometers.
Recent scientific highlights range from stellar atmospheres (precise diameters, including G/K dwarfs; limb darkening; Cepheid pulsations) to circumstellar material (water detected in a protoplanetary disk; debris disks; Be star disks; warped circumbinary disks; dust shells) to orbits and stellar masses in double, triple, and quadruple systems, to images of stellar surfaces (rapid rotators such Altair), to name a few. While the great majority of results to date have focused on stellar astrophysics, the MROI strives to have sensitivity sufficient to access a number of AGN.
Research with these independently operated facilities is sponsored by the California Institute of Technology and the Jet Propulsion Laboratory for PTI; the Oceanographer of the Navy and the Office of Naval Research for NPOI; the National Aeronautics and Space Administration for KI; the National Science Foundation and Georgia State University for the CHARA Array; and the Office of Naval Research, the National Science Foundation, and the Gordon and Betty Moore Foundation for ISI. Funding for MROI is administered through the Office of Naval Research.

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