Phases in interferometry

Details Phases in interferometry Phases in interferometry

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007newar..51..604m&link_type=abstract

"New Astronomy Reviews, Volume 51, Issue 8-9, Proceedings of the EuroSummer School "Observation and Data Red

Astronomy and Astrophysics

Astronomy

16

Scientific paper

While interference fringes contain both amplitude and phase information, most interferometric results published to date focus solely on the amplitude data. This is because atmospheric turbulence corrupts the observed fringe phases, rendering them almost useless by themselves. Various techniques can be used to recover phase information and in this chapter we discuss the techniques of narrow-angle astrometry, differential phase, and phase closure for effectively recovering valuable and unique science from the otherwise-scrambled phase measurements. We focus especially on applications of closure phase made possible by current facilities.

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