Simulated Multi-Beam Observations of Be Stars in the H-alpha Line using the Navy Prototype Optical Interferometer
Abstract
The Navy Prototype Optical Interferometer has recently been equipped with specially-designed filters that pass H-ALPHA emission in a 2.5 nm band, suppress the continuum 50 nm to either side, and pass the continuum further from the H-ALPHA line. These filters allow fringe tracking on continuum light while taking data at H-ALPHA. Five-and sixaperture NPOI configurations have also been implemented recently. The improvement in U-V coverage with these configurations promises greater image fidelity in multi-spectral imaging as well as in specific lines, such as the very interesting H alpha line. Using an array simulator operating in the AIPS++ environment, we simulate observations of H-alpha emission, assuming approximate source structure taken from earlier work in the literature. These simulations demonstrate the increased imaging capability of multi-aperture arrays and help define optimum H-alpha observation strategies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2003
- Accession Number
- ADA477349
Entities
People
- Daniel J Driscoll
- David Mozurkewich
- G. Charmaine Gilbreath
- James A. Benson
- John Thomas Armstrong
- Robert Hindsley
- Thomas A. Pauls
Organizations
- United States Naval Research Laboratory