Speckle camera imaging of the planet Pluto
Article
Article Title | Speckle camera imaging of the planet Pluto |
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ERA Journal ID | 1082 |
Article Category | Article |
Authors | Howell, Steve B. (Author), Horch, Elliott P. (Author), Everett, Mark E. (Author) and Ciardi, David R. (Author) |
Journal Title | Publications of the Astronomical Society of the Pacific |
Journal Citation | 124 (920), pp. 1124-1131 |
Number of Pages | 8 |
Year | 2012 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6280 |
1538-3873 | |
Digital Object Identifier (DOI) | https://doi.org/10.1086/668405 |
Web Address (URL) | http://iopscience.iop.org/article/10.1086/668405 |
Abstract | We have obtained optical wavelength (692 nm and 880 nm) speckle imaging of the planet Pluto and its largest moon Charon. Using our DSSI speckle camera attached to the Gemini North 8 m telescope, we collected high resolution imaging with an angular resolution of ~20 mas, a value at the Gemini-N telescope diffraction limit. We have produced for this binary system the first speckle reconstructed images, from which we can measure not only the orbital separation and position angle for Charon, but also the diameters of the two bodies. Our measurements of these parameters agree, within the uncertainties, with the current best values for Pluto and Charon. The Gemini-N speckle observations of Pluto are presented to illustrate the capabilities of our instrument and the robust production of high accuracy, high spatial resolution reconstructed images. We hope our results will suggest additional applications of high resolution speckle imaging for other objects within our solar system and beyond. |
Keywords | speckle imaging; Pluto; Charon; |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Aeronautics and Space Administration (NASA), United States |
Southern Connecticut State University, United States | |
National Optical Astronomy Observatory, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q431v/speckle-camera-imaging-of-the-planet-pluto
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