First 2.2 micron Results From the IOTA Interferometer
Abstract
We present the first infrared fringe visibility measurements made with the Infrared Optical Telescope Array on Mt. Hopkins. Effective temperatures are derived for RX Boo, RS Cnc, and Beta Peg. RX Boo is the coolest small-amplitude variable giant star to have an effective temperature determination. We compare the size of its photosphere at infrared wavelengths with the sizes of its SiO and H20 radio emission regions. We also discuss initial performance parameters for the interferometer.
- Publication:
-
The Astronomical Journal
- Pub Date:
- January 1995
- DOI:
- 10.1086/117282
- Bibcode:
- 1995AJ....109..378D
- Keywords:
-
- Infrared Astronomy;
- Infrared Imagery;
- Near Infrared Radiation;
- Photosphere;
- Radio Emission;
- Red Giant Stars;
- Infrared Telescopes;
- Michelson Interferometers;
- Stellar Temperature;
- Variable Stars;
- Astronomy;
- INSTRUMENTATION: INTERFEROMETERS;
- INFRARED: STARS