FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3178661372> ?p ?o ?g. }

• W3178661372 endingPage "A18" @default.
• W3178661372 startingPage "A18" @default.
• W3178661372 abstract "Context. Observing the neutral hydrogen distribution across the Universe via redshifted 21 cm line intensity mapping constitutes a powerful probe for cosmology. However, the redshifted 21 cm signal is obscured by the foreground emission from our Galaxy and other extragalactic foregrounds. This paper addresses the capabilities of the BINGO survey to separate such signals. Aims. We show that the BINGO instrumental, optical, and simulations setup is suitable for component separation, and that we have the appropriate tools to understand and control foreground residuals. Specifically, this paper looks in detail at the different residuals left over by foreground components, shows that a noise-corrected spectrum is unbiased, and shows that we understand the remaining systematic residuals by analyzing nonzero contributions to the three-point function. Methods. We use the generalized needlet internal linear combination, which we apply to sky simulations of the BINGO experiment for each redshift bin of the survey. We use binned estimates of the bispectrum of the maps to assess foreground residuals left over after component separation in the final map. Results. We present our recovery of the redshifted 21 cm signal from sky simulations of the BINGO experiment, including foreground components. We test the recovery of the 21 cm signal through the angular power spectrum at different redshifts, as well as the recovery of its non-Gaussian distribution through a bispectrum analysis. We find that non-Gaussianities from the original foreground maps can be removed down to, at least, the noise limit of the BINGO survey with such techniques. Conclusions. Our component separation methodology allows us to subtract the foreground contamination in the BINGO channels down to levels below the cosmological signal and the noise, and to reconstruct the 21 cm power spectrum for different redshift bins without significant loss at multipoles 20 ≲ ℓ ≲ 500. Our bispectrum analysis yields strong tests of the level of the residual foreground contamination in the recovered 21 cm signal, thereby allowing us to both optimize and validate our component separation analysis." @default.
• W3178661372 created "2021-07-19" @default.
• W3178661372 creator A5001541516 @default.
• W3178661372 creator A5005477906 @default.
• W3178661372 creator A5005990518 @default.
• W3178661372 creator A5006341437 @default.
• W3178661372 creator A5006381154 @default.
• W3178661372 creator A5023196721 @default.
• W3178661372 creator A5029593668 @default.
• W3178661372 creator A5033732336 @default.
• W3178661372 creator A5040537120 @default.
• W3178661372 creator A5044181618 @default.
• W3178661372 creator A5045413886 @default.
• W3178661372 creator A5052181123 @default.
• W3178661372 creator A5054763033 @default.
• W3178661372 creator A5056853859 @default.
• W3178661372 creator A5060686201 @default.
• W3178661372 creator A5061547658 @default.
• W3178661372 creator A5065379276 @default.
• W3178661372 creator A5067361325 @default.
• W3178661372 creator A5072360071 @default.
• W3178661372 creator A5077802021 @default.
• W3178661372 creator A5088594383 @default.
• W3178661372 creator A5088885806 @default.
• W3178661372 date "2022-08-01" @default.
• W3178661372 modified "2023-10-12" @default.
• W3178661372 title "The BINGO project" @default.
• W3178661372 cites W1762624374 @default.
• W3178661372 cites W1777842348 @default.
• W3178661372 cites W1813624723 @default.
• W3178661372 cites W1931011441 @default.
• W3178661372 cites W1976579441 @default.
• W3178661372 cites W1981255943 @default.
• W3178661372 cites W1996805633 @default.
• W3178661372 cites W2027635416 @default.
• W3178661372 cites W2030392256 @default.
• W3178661372 cites W2044983500 @default.
• W3178661372 cites W2064690675 @default.
• W3178661372 cites W2067709708 @default.
• W3178661372 cites W2071232376 @default.
• W3178661372 cites W2084377030 @default.
• W3178661372 cites W2087624373 @default.
• W3178661372 cites W2100301492 @default.
• W3178661372 cites W2112154139 @default.
• W3178661372 cites W2112997141 @default.
• W3178661372 cites W2123793589 @default.
• W3178661372 cites W2127013221 @default.
• W3178661372 cites W2128773267 @default.
• W3178661372 cites W2130410830 @default.
• W3178661372 cites W2134398577 @default.
• W3178661372 cites W2136807582 @default.
• W3178661372 cites W2170187590 @default.
• W3178661372 cites W2170252886 @default.
• W3178661372 cites W2181042058 @default.
• W3178661372 cites W2341039407 @default.
• W3178661372 cites W2556156914 @default.
• W3178661372 cites W2738860366 @default.
• W3178661372 cites W2891153464 @default.
• W3178661372 cites W2962853297 @default.
• W3178661372 cites W2995546506 @default.
• W3178661372 cites W3035308535 @default.
• W3178661372 cites W3047538035 @default.
• W3178661372 cites W3084656448 @default.
• W3178661372 cites W3098380050 @default.
• W3178661372 cites W3100001426 @default.
• W3178661372 cites W3100004455 @default.
• W3178661372 cites W3100838822 @default.
• W3178661372 cites W3103587998 @default.
• W3178661372 cites W3105469218 @default.
• W3178661372 cites W3106425272 @default.
• W3178661372 cites W3121960866 @default.
• W3178661372 cites W3122790226 @default.
• W3178661372 cites W3130222761 @default.
• W3178661372 cites W3178897597 @default.
• W3178661372 cites W3182980889 @default.
• W3178661372 cites W3186392017 @default.
• W3178661372 cites W3195461121 @default.
• W3178661372 cites W4206640948 @default.
• W3178661372 cites W4225279043 @default.
• W3178661372 cites W4288079944 @default.
• W3178661372 cites W4289874916 @default.
• W3178661372 cites W4292875581 @default.
• W3178661372 cites W4292918236 @default.
• W3178661372 doi "https://doi.org/10.1051/0004-6361/202141707" @default.
• W3178661372 hasPublicationYear "2022" @default.
• W3178661372 type Work @default.
• W3178661372 sameAs 3178661372 @default.
• W3178661372 citedByCount "11" @default.
• W3178661372 countsByYear W31786613722022 @default.
• W3178661372 countsByYear W31786613722023 @default.
• W3178661372 crossrefType "journal-article" @default.
• W3178661372 hasAuthorship W3178661372A5001541516 @default.
• W3178661372 hasAuthorship W3178661372A5005477906 @default.
• W3178661372 hasAuthorship W3178661372A5005990518 @default.
• W3178661372 hasAuthorship W3178661372A5006341437 @default.
• W3178661372 hasAuthorship W3178661372A5006381154 @default.
• W3178661372 hasAuthorship W3178661372A5023196721 @default.
• W3178661372 hasAuthorship W3178661372A5029593668 @default.

• next