Colloquium: Michelle Creech-Eakman (Host: Moire Prescott)

October 12, 2018 @ 3:15 pm – 4:15 pm

The Magdalena Ridge Observatory Interferometer: Design Details and Progress towards First Light with UT#1

Michelle Creech-Eakman, New Mexico Tech

The Magdalena Ridge Observatory Interferometer (MROI), a 10-telescope optical/near-IR interferometer in central NM, has been conceived to be the most ambitious optical interferometric array under construction to date. With baselines ranging from 7.8 to 347 meters, and limiting magnitudes of 14 at H band, it will be able to assess many thousands of astronomical targets on spatial scales of 10’s to 0.1’s of milliarcseconds. This is achieved through several careful design choices and trade-offs which should allow the MROI to reach 4-5 magnitudes deeper than similar facilities can achieve today. After over a decade of funding from NRL and the major partner institutions (NM Tech and Cambridge University), new funding was obtained in late 2015 via a Cooperative Agreement between NM Tech and the Air Force Research Lab (AFRL) to bring the facility to a three-interferometer system capable of observing geosynchronous satellites. However, we still maintain an exciting and compelling astronomical portfolio which will produce statistical samples of: YSOs and their surrounding disks, systems dominated by mass-loss and mass-transfer, pulsating stars and binary star systems, and images of the environs of AGN in nearby galaxies. An overview of the major design components of this ambitious imaging machine, recent progress, and plans for MROI for the next 3 years under the AFRL Cooperative Agreement will be presented.

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