Matches in SemOpenAlex for { <https://semopenalex.org/work/W2038248532> ?p ?o ?g. }
- W2038248532 abstract "The laser metrology system in the GRAVITY instrument plays a crucial role in an attempt at high-precision narrow-angle astrometry. With a design goal of achieving 10 microarcseconds precision in astrometry, the system must measure the optical path difference between two beam combiners within GRAVITY to an accuracy of better than 5nm. However in its current design, some parts of the optical paths of the metrology system are not common to the optical paths of starlight (the science path) which it must measure with high accuracy. This state of the design is true for most but not all the baselines which will be used by the GRAVITY instrument. The additional non-common optical paths could produce inaccurate path length measurements and consequently inaccurate measurements of the differential phase between fringe packets of two nearby celestial objects, which is the main astrometric observable of the instrument. With reference to the stability and the sensitivity of the non-common paths, this paper describes the impact of a biased differential phase measurement on the narrowangle astrometry and the image reconstruction performance of the GRAVITY instrument. Several alternative designs are also discussed." @default.
- W2038248532 created "2016-06-24" @default.
- W2038248532 creator A5004772011 @default.
- W2038248532 creator A5006047518 @default.
- W2038248532 creator A5008658934 @default.
- W2038248532 creator A5011405198 @default.
- W2038248532 creator A5014405410 @default.
- W2038248532 creator A5030358533 @default.
- W2038248532 creator A5032049136 @default.
- W2038248532 creator A5037578135 @default.
- W2038248532 creator A5052543339 @default.
- W2038248532 creator A5052949993 @default.
- W2038248532 creator A5054387556 @default.
- W2038248532 creator A5060112203 @default.
- W2038248532 creator A5062064925 @default.
- W2038248532 creator A5063657090 @default.
- W2038248532 creator A5063784026 @default.
- W2038248532 creator A5065896273 @default.
- W2038248532 creator A5070619820 @default.
- W2038248532 creator A5071163045 @default.
- W2038248532 creator A5072296304 @default.
- W2038248532 creator A5075333914 @default.
- W2038248532 creator A5082869565 @default.
- W2038248532 creator A5090479752 @default.
- W2038248532 creator A5090982750 @default.
- W2038248532 date "2014-07-24" @default.
- W2038248532 modified "2023-10-08" @default.
- W2038248532 title "GRAVITY: the impact of non-common optical paths within the metrology system" @default.
- W2038248532 cites W3037125289 @default.
- W2038248532 cites W4240014693 @default.
- W2038248532 doi "https://doi.org/10.1117/12.2055567" @default.
- W2038248532 hasPublicationYear "2014" @default.
- W2038248532 type Work @default.
- W2038248532 sameAs 2038248532 @default.
- W2038248532 citedByCount "1" @default.
- W2038248532 countsByYear W20382485322018 @default.
- W2038248532 crossrefType "proceedings-article" @default.
- W2038248532 hasAuthorship W2038248532A5004772011 @default.
- W2038248532 hasAuthorship W2038248532A5006047518 @default.
- W2038248532 hasAuthorship W2038248532A5008658934 @default.
- W2038248532 hasAuthorship W2038248532A5011405198 @default.
- W2038248532 hasAuthorship W2038248532A5014405410 @default.
- W2038248532 hasAuthorship W2038248532A5030358533 @default.
- W2038248532 hasAuthorship W2038248532A5032049136 @default.
- W2038248532 hasAuthorship W2038248532A5037578135 @default.
- W2038248532 hasAuthorship W2038248532A5052543339 @default.
- W2038248532 hasAuthorship W2038248532A5052949993 @default.
- W2038248532 hasAuthorship W2038248532A5054387556 @default.
- W2038248532 hasAuthorship W2038248532A5060112203 @default.
- W2038248532 hasAuthorship W2038248532A5062064925 @default.
- W2038248532 hasAuthorship W2038248532A5063657090 @default.
- W2038248532 hasAuthorship W2038248532A5063784026 @default.
- W2038248532 hasAuthorship W2038248532A5065896273 @default.
- W2038248532 hasAuthorship W2038248532A5070619820 @default.
- W2038248532 hasAuthorship W2038248532A5071163045 @default.
- W2038248532 hasAuthorship W2038248532A5072296304 @default.
- W2038248532 hasAuthorship W2038248532A5075333914 @default.
- W2038248532 hasAuthorship W2038248532A5082869565 @default.
- W2038248532 hasAuthorship W2038248532A5090479752 @default.
- W2038248532 hasAuthorship W2038248532A5090982750 @default.
- W2038248532 hasBestOaLocation W20382485321 @default.
- W2038248532 hasConcept C120665830 @default.
- W2038248532 hasConcept C121332964 @default.
- W2038248532 hasConcept C127313418 @default.
- W2038248532 hasConcept C1276947 @default.
- W2038248532 hasConcept C133725777 @default.
- W2038248532 hasConcept C150846664 @default.
- W2038248532 hasConcept C166689943 @default.
- W2038248532 hasConcept C195766429 @default.
- W2038248532 hasConcept C199360897 @default.
- W2038248532 hasConcept C22783969 @default.
- W2038248532 hasConcept C2776112769 @default.
- W2038248532 hasConcept C2777735758 @default.
- W2038248532 hasConcept C2780009758 @default.
- W2038248532 hasConcept C31872934 @default.
- W2038248532 hasConcept C41008148 @default.
- W2038248532 hasConcept C62649853 @default.
- W2038248532 hasConcept C77088390 @default.
- W2038248532 hasConcept C93226319 @default.
- W2038248532 hasConcept C97355855 @default.
- W2038248532 hasConceptScore W2038248532C120665830 @default.
- W2038248532 hasConceptScore W2038248532C121332964 @default.
- W2038248532 hasConceptScore W2038248532C127313418 @default.
- W2038248532 hasConceptScore W2038248532C1276947 @default.
- W2038248532 hasConceptScore W2038248532C133725777 @default.
- W2038248532 hasConceptScore W2038248532C150846664 @default.
- W2038248532 hasConceptScore W2038248532C166689943 @default.
- W2038248532 hasConceptScore W2038248532C195766429 @default.
- W2038248532 hasConceptScore W2038248532C199360897 @default.
- W2038248532 hasConceptScore W2038248532C22783969 @default.
- W2038248532 hasConceptScore W2038248532C2776112769 @default.
- W2038248532 hasConceptScore W2038248532C2777735758 @default.
- W2038248532 hasConceptScore W2038248532C2780009758 @default.
- W2038248532 hasConceptScore W2038248532C31872934 @default.
- W2038248532 hasConceptScore W2038248532C41008148 @default.
- W2038248532 hasConceptScore W2038248532C62649853 @default.
- W2038248532 hasConceptScore W2038248532C77088390 @default.
- W2038248532 hasConceptScore W2038248532C93226319 @default.
- W2038248532 hasConceptScore W2038248532C97355855 @default.
- W2038248532 hasLocation W20382485321 @default.