Asymmetric beams in cosmic microwave background anisotropy experiments

Jhp, W; Balbi, A; Borrill, J; Ferreira, P; Hanany, S; Jaffe, A; Lee, A; Oh, S; Rabii, B; Richards, P; Smoot, G; Stompor, R; Winant, C

We propose a new formalism to handle asymmetric beams in the data analysis of cosmic microwave background anisotropy experiments. For any beam shape, the formalism finds the optimal circularly symmetric equivalent and is thus easily adaptable to existing data analysis methods. We demonstrate certain key points by using a simulated highly elliptic beam and the beams and data of the MAXIMA-1 experiment, where the asymmetry is mild. We show that in both cases the formalism does not bias the angular power spectrum estimates. We analyze the limitations of the formalism and find that it is well suited for most practical situations.

Jhp, W., Balbi, A., Borrill, J., Ferreira, P., Hanany, S., Jaffe, A., et al. (2001). Asymmetric beams in cosmic microwave background anisotropy experiments. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 132(1), 1-17.

Tipologia:	Articolo su rivista
Citazione:	Jhp, W., Balbi, A., Borrill, J., Ferreira, P., Hanany, S., Jaffe, A., et al. (2001). Asymmetric beams in cosmic microwave background anisotropy experiments. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 132(1), 1-17.
Lingua:	English
Settore Scientifico Disciplinare:	Settore FIS/05 - Astronomia e Astrofisica
Revisione (peer review):	Sì, ma tipo non specificato
Tipo:	Articolo
Rilevanza:	Rilevanza internazionale
Stato di pubblicazione:	Pubblicato
Data di pubblicazione:	2001
Titolo:	Asymmetric beams in cosmic microwave background anisotropy experiments
Autori:	Wu, JHP BALBI, AMEDEO Borrill, J Ferreira, PG Hanany, S Jaffe, AH Lee, AT Oh, S Rabii, B Richards, PL Smoot, GF Stompor, R Winant, CD mostra contributor esterni nascondi contributor esterni
Autori:	Jhp, W; Balbi, A; Borrill, J; Ferreira, P; Hanany, S; Jaffe, A; Lee, A; Oh, S; Rabii, B; Richards, P; Smoot, G; Stompor, R; Winant, C
Appare nelle tipologie:	01 - Articolo su rivista

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Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/2108/53986

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