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Imaging submilliarcsecond stellar features with intensity interferometry using air Cherenkov telescope arrays
Article first published online: 12 JUN 2012
DOI: 10.1111/j.1365-2966.2012.21263.x
© 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS
Issue
Monthly Notices of the Royal Astronomical Society
Volume 424, Issue 2, pages 1006–1011, August 2012
Additional Information
How to Cite
Nuñez, P. D., Holmes, R., Kieda, D., Rou, J. and LeBohec, S. (2012), Imaging submilliarcsecond stellar features with intensity interferometry using air Cherenkov telescope arrays. Monthly Notices of the Royal Astronomical Society, 424: 1006–1011. doi: 10.1111/j.1365-2966.2012.21263.x
Publication History
- Issue published online: 13 JUL 2012
- Article first published online: 12 JUN 2012
- Accepted 2012 May 8. Received 2012 April 11; in original form 2012 January 27
- Abstract
- Article
- References
- Cited By
Keywords:
- instrumentation: interferometers;
- techniques: high angular resolution;
- techniques: image processing;
- techniques: interferometric;
- stars: imaging
ABSTRACT
Recent proposals have been advanced to apply imaging air Cherenkov telescope arrays to stellar intensity interferometry (SII). Of particular interest is the possibility of model-independent image recovery afforded by the good (u, v)-plane coverage of these arrays, as well as recent developments in phase retrieval techniques. The capabilities of these instruments used as SII receivers have already been explored for simple stellar objects, and here the focus is on reconstructing stellar images with non-uniform radiance distributions. We find that hot stars (T > 6000 K) containing hot and/or cool localized regions (ΔT ∼ 500 K) as small as ∼ 0.1 mas can be imaged at short wavelengths (λ= 400 nm).