FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100854232> ?p ?o ?g. }

• W3100854232 endingPage "52" @default.
• W3100854232 startingPage "52" @default.
• W3100854232 abstract "We present a formalism to extract the EoR HI power spectrum for drift scans using radio interferometers. Our main aim is to determine the coherence time scale of time-ordered visibilities. We compute the two-point correlation function of the HI visibilities measured at different times to address this question. We determine, for a given baseline, the decorrelation of the amplitude and the phase of this complex function. Our analysis uses primary beams of four ongoing and future interferometers---PAPER, MWA, HERA, and SKA1-Low. We identify physical processes responsible for the decorrelation of the HI signal and isolate their impact by making suitable analytic approximations. The decorrelation time scale of the amplitude of the correlation function lies in the range of 2--20~minutes for baselines of interest for the extraction of the HI signal. The phase of the correlation function can be made small after scaling out an appropriate term, which also causes the coherence time scale of the phase to be longer than the amplitude of the correlation function. We find that our results are insensitive to the input HI power spectrum and therefore they are directly applicable to the analysis of the drift scan data. We also apply our formalism to a set of point sources and statistically homogeneous diffuse correlated foregrounds. We find that point sources decorrelate on a time scale much shorter than the HI signal. This provides a novel mechanism to partially mitigate the foregrounds in a drift scan." @default.
• W3100854232 created "2020-11-23" @default.
• W3100854232 creator A5026520799 @default.
• W3100854232 creator A5047599923 @default.
• W3100854232 date "2019-12-10" @default.
• W3100854232 modified "2023-09-27" @default.
• W3100854232 title "Detecting the 21 cm Signal from the Epoch of Reionization Using Drift Scans: Correlation of Time-ordered Visibilities" @default.
• W3100854232 cites W1499466692 @default.
• W3100854232 cites W1899149329 @default.
• W3100854232 cites W1975679485 @default.
• W3100854232 cites W1986881428 @default.
• W3100854232 cites W2005411300 @default.
• W3100854232 cites W2020456893 @default.
• W3100854232 cites W2025670910 @default.
• W3100854232 cites W2033314601 @default.
• W3100854232 cites W2036378917 @default.
• W3100854232 cites W2041928669 @default.
• W3100854232 cites W2073938066 @default.
• W3100854232 cites W2112516052 @default.
• W3100854232 cites W2115384982 @default.
• W3100854232 cites W2129875460 @default.
• W3100854232 cites W2147626801 @default.
• W3100854232 cites W2148492013 @default.
• W3100854232 cites W2163066012 @default.
• W3100854232 cites W2170108704 @default.
• W3100854232 cites W2170502516 @default.
• W3100854232 cites W2234515242 @default.
• W3100854232 cites W2508630034 @default.
• W3100854232 cites W2539694342 @default.
• W3100854232 cites W2597412078 @default.
• W3100854232 cites W2764101462 @default.
• W3100854232 cites W2788581379 @default.
• W3100854232 cites W2888716238 @default.
• W3100854232 cites W2890204506 @default.
• W3100854232 cites W2952145902 @default.
• W3100854232 cites W2972009598 @default.
• W3100854232 cites W3099789490 @default.
• W3100854232 cites W3101208819 @default.
• W3100854232 cites W3103553760 @default.
• W3100854232 cites W3103730211 @default.
• W3100854232 cites W3105668871 @default.
• W3100854232 cites W3106288843 @default.
• W3100854232 cites W3106485962 @default.
• W3100854232 cites W3123244282 @default.
• W3100854232 cites W3124133633 @default.
• W3100854232 cites W4292875581 @default.
• W3100854232 doi "https://doi.org/10.3847/1538-4357/ab5185" @default.
• W3100854232 hasPublicationYear "2019" @default.
• W3100854232 type Work @default.
• W3100854232 sameAs 3100854232 @default.
• W3100854232 citedByCount "3" @default.
• W3100854232 countsByYear W31008542322020 @default.
• W3100854232 countsByYear W31008542322021 @default.
• W3100854232 countsByYear W31008542322022 @default.
• W3100854232 crossrefType "journal-article" @default.
• W3100854232 hasAuthorship W3100854232A5026520799 @default.
• W3100854232 hasAuthorship W3100854232A5047599923 @default.
• W3100854232 hasBestOaLocation W31008542321 @default.
• W3100854232 hasConcept C105795698 @default.
• W3100854232 hasConcept C11413529 @default.
• W3100854232 hasConcept C117137515 @default.
• W3100854232 hasConcept C117220453 @default.
• W3100854232 hasConcept C120665830 @default.
• W3100854232 hasConcept C121332964 @default.
• W3100854232 hasConcept C133386390 @default.
• W3100854232 hasConcept C142362112 @default.
• W3100854232 hasConcept C153349607 @default.
• W3100854232 hasConcept C163018871 @default.
• W3100854232 hasConcept C166689943 @default.
• W3100854232 hasConcept C177860922 @default.
• W3100854232 hasConcept C180205008 @default.
• W3100854232 hasConcept C23576306 @default.
• W3100854232 hasConcept C2524010 @default.
• W3100854232 hasConcept C2779762263 @default.
• W3100854232 hasConcept C2781181686 @default.
• W3100854232 hasConcept C30475298 @default.
• W3100854232 hasConcept C33024259 @default.
• W3100854232 hasConcept C33923547 @default.
• W3100854232 hasConcept C41008148 @default.
• W3100854232 hasConcept C44870925 @default.
• W3100854232 hasConcept C53622274 @default.
• W3100854232 hasConcept C558565934 @default.
• W3100854232 hasConcept C62520636 @default.
• W3100854232 hasConcept C69672822 @default.
• W3100854232 hasConcept C73301696 @default.
• W3100854232 hasConcept C98444146 @default.
• W3100854232 hasConcept C99844830 @default.
• W3100854232 hasConceptScore W3100854232C105795698 @default.
• W3100854232 hasConceptScore W3100854232C11413529 @default.
• W3100854232 hasConceptScore W3100854232C117137515 @default.
• W3100854232 hasConceptScore W3100854232C117220453 @default.
• W3100854232 hasConceptScore W3100854232C120665830 @default.
• W3100854232 hasConceptScore W3100854232C121332964 @default.
• W3100854232 hasConceptScore W3100854232C133386390 @default.
• W3100854232 hasConceptScore W3100854232C142362112 @default.
• W3100854232 hasConceptScore W3100854232C153349607 @default.
• W3100854232 hasConceptScore W3100854232C163018871 @default.
• W3100854232 hasConceptScore W3100854232C166689943 @default.

• next