University
of California, Davis
Physics
Department
Cosmology Seminar
Dr. Rachel Akeson
"First Science Results with the Keck Interferometer"
The Keck Interferometer began science observations in June 2002 using the 10-meter Keck telescopes in visibility amplitude mode. Since then, a wide range of astronomical objects have been observed, from T Tauri stars to the center of a Seyfert galaxy. I will discuss some of the scientific results, highlighting topics new to the era of large aperture interferometry. For example, observations of the Seyfert 1 galaxy NGC 4151, the first extra-galactic object detected with infrared interferometry, revealed that the majority of the near-infrared emission from the center of the galaxy arises from a region less than 0.1 in diameter.
Thursday,
April 29, 2004
12:10 p.m., 416 PHY/GEO