DIFFRACTION-LIMITED IMAGING FROM THE GROUND: MEASUREMENT OF STELLAR SPATIAL SPECTRA
Algorithms and computational developments in recent years have yielded suitable techniques for overcoming the resolution limits imposed on conventional astronomical observations by atmospheric turbulence. The Knox-Thompson, triple-correlation, and phase-gradient algorithms are capable of reconstruct...
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| Veröffentlicht in: | Publications of the Astronomical Society of the Pacific 1989-05, Vol.101 (639), p.471-488 |
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| container_end_page | 488 |
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| container_issue | 639 |
| container_start_page | 471 |
| container_title | Publications of the Astronomical Society of the Pacific |
| container_volume | 101 |
| creator | AITKEN, G. J. M. |
| description | Algorithms and computational developments in recent years have yielded suitable techniques for overcoming the resolution limits imposed on conventional astronomical observations by atmospheric turbulence. The Knox-Thompson, triple-correlation, and phase-gradient algorithms are capable of reconstructing the diffraction-limited, complex spatial spectrum of an object from a sequence of short-exposure images. The basic principles of these techniques are reviewed with emphasis on photon-limited operation at visible wavelengths. Practical considerations, magnitude limits, and examples of recent applications are presented. |
| doi_str_mv | 10.1086/132456 |
| format | Article |
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Practical considerations, magnitude limits, and examples of recent applications are presented.</description><identifier>ISSN: 0004-6280</identifier><identifier>EISSN: 1538-3873</identifier><identifier>DOI: 10.1086/132456</identifier><identifier>CODEN: PASPAU</identifier><language>eng</language><publisher>Chicago, IL: The Astronomical Society of the Pacific</publisher><subject>Astronomical objects ; Astronomy ; Earth, ocean, space ; Exact sciences and technology ; Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations ; Image reconstruction ; Imaging ; Observation and data reduction techniques. 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J. M.</creatorcontrib><title>DIFFRACTION-LIMITED IMAGING FROM THE GROUND: MEASUREMENT OF STELLAR SPATIAL SPECTRA</title><title>Publications of the Astronomical Society of the Pacific</title><description>Algorithms and computational developments in recent years have yielded suitable techniques for overcoming the resolution limits imposed on conventional astronomical observations by atmospheric turbulence. The Knox-Thompson, triple-correlation, and phase-gradient algorithms are capable of reconstructing the diffraction-limited, complex spatial spectrum of an object from a sequence of short-exposure images. The basic principles of these techniques are reviewed with emphasis on photon-limited operation at visible wavelengths. Practical considerations, magnitude limits, and examples of recent applications are presented.</description><subject>Astronomical objects</subject><subject>Astronomy</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations</subject><subject>Image reconstruction</subject><subject>Imaging</subject><subject>Observation and data reduction techniques. Computer modeling and simulation</subject><subject>Observational astronomy</subject><subject>Observatories</subject><subject>Photons</subject><subject>Review</subject><subject>Supernova remnants</subject><subject>Telescopes</subject><subject>Transfer functions</subject><subject>Wavelengths</subject><issn>0004-6280</issn><issn>1538-3873</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNo90E1LwzAcBvAgCs6p30DIQbxV_3lZk3oLXdoF-iJtdi5p18LGdKPZxW_vRmWn5_D8eA4PQs8E3gnI8IMwyhfhDZqRBZMBk4LdohkA8CCkEu7Rg_c7AEIkgRmqlyZJKhVbUxZBZnJj9RKbXKWmSHFSlTm2K43TqlwXy0-ca1WvK53rwuIywbXVWaYqXH8pa1R2Th3bSj2iu8Htff_0n3O0TrSNV0FWpiZWWdBRAadAtn1LOwLC9VKyqGeCbSS4dsGHiA2cRVREpO1ZNNCBSU6JEA4IDaOeDxsiKJujt2m3Gw_ej_3QHMfttxt_GwLN5YpmuuIMXyd4dL5z-2F0P93WX7VgwLi8sJeJ7fzpMF5rDqGIGBfsD_l4XZc</recordid><startdate>19890501</startdate><enddate>19890501</enddate><creator>AITKEN, G. J. 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Computer modeling and simulation</topic><topic>Observational astronomy</topic><topic>Observatories</topic><topic>Photons</topic><topic>Review</topic><topic>Supernova remnants</topic><topic>Telescopes</topic><topic>Transfer functions</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>AITKEN, G. J. M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Publications of the Astronomical Society of the Pacific</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>AITKEN, G. J. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>DIFFRACTION-LIMITED IMAGING FROM THE GROUND: MEASUREMENT OF STELLAR SPATIAL SPECTRA</atitle><jtitle>Publications of the Astronomical Society of the Pacific</jtitle><date>1989-05-01</date><risdate>1989</risdate><volume>101</volume><issue>639</issue><spage>471</spage><epage>488</epage><pages>471-488</pages><issn>0004-6280</issn><eissn>1538-3873</eissn><coden>PASPAU</coden><abstract>Algorithms and computational developments in recent years have yielded suitable techniques for overcoming the resolution limits imposed on conventional astronomical observations by atmospheric turbulence. The Knox-Thompson, triple-correlation, and phase-gradient algorithms are capable of reconstructing the diffraction-limited, complex spatial spectrum of an object from a sequence of short-exposure images. The basic principles of these techniques are reviewed with emphasis on photon-limited operation at visible wavelengths. 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| ispartof | Publications of the Astronomical Society of the Pacific, 1989-05, Vol.101 (639), p.471-488 |
| issn | 0004-6280 1538-3873 |
| language | eng |
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| source | IOP Publishing Journals; Jstor Complete Legacy; EZB-FREE-00999 freely available EZB journals; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection |
| subjects | Astronomical objects Astronomy Earth, ocean, space Exact sciences and technology Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations Image reconstruction Imaging Observation and data reduction techniques. Computer modeling and simulation Observational astronomy Observatories Photons Review Supernova remnants Telescopes Transfer functions Wavelengths |
| title | DIFFRACTION-LIMITED IMAGING FROM THE GROUND: MEASUREMENT OF STELLAR SPATIAL SPECTRA |
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