Circumstellar dust envelopes - Calculation of eclipse light curves and fringe visibilities

Abstract

view Abstract Citations (29) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Circumstellar dust envelopes: calculation of eclipse light curves and fringe visibilities. Crabtree, D. R. ; Martin, P. G. Abstract We describe a procedure by which the fringe visibility, as obtained by using a two-element Michelson interferometer, and an eclipse light curve, as observed during a lunar occultation, can be computed for models of extended circumstellar dust envelopes. The potential value of these measures of angular size in the interpretation of observed circumstellar regions is demonstrated by an investigation of their systematic dependence on various model parameters. An application to IRC +10216 suggests that a model involving two distinct components, such as is currently popular, may not be required to explain the observations. Publication: The Astrophysical Journal Pub Date: February 1979 DOI: 10.1086/156799 Bibcode: 1979ApJ...227..900C Keywords: Cosmic Dust; Diffraction Patterns; Infrared Astronomy; Light Curve; Stellar Envelopes; Stellar Occultation; Density Distribution; Interferometry; Luminous Intensity; Lunar Occultation; Michelson Interferometers; Stellar Models; Visibility; Astrophysics; Circumstellar Shells:Models; Infrared Sources:Models full text sources ADS | data products SIMBAD (1)