2014MNRAS.437.2772M

Query : 2014MNRAS.437.2772M

2014MNRAS.437.2772M - Mon. Not. R. Astron. Soc., 437, 2772-2789 (2014/January-3)

Empirical modelling of the BLASTPol achromatic half-wave plate for precision submillimetre polarimetry.

MONCELSI L., ADE P.A.R., ANGILE F.E., BENTON S.J., DEVLIN M.J., FISSEL L.M., GANDILO N.N., GUNDERSEN J.O., MATTHEWS T.G., NETTERFIELD C.B., NOVAK G., NUTTER D., PASCALE E., POIDEVIN F., SAVINI G., SCOTT D., SOLER J.D., SPENCER L.D., TRUCH M.D.P., TUCKER G.S. and ZHANG J.

Abstract (from CDS):

A cryogenic achromatic half-wave plate (HWP) for submillimetre astronomical polarimetry has been designed, manufactured, tested and deployed in the Balloon-borne Large-Aperture Submillimeter Telescope for Polarimetry (BLASTPol). The design is based on the five-slab Pancharatnam recipe and it works in the wavelength range 200-600µm, making it the broadest-band HWP built to date at (sub)millimetre wavelengths. The frequency behaviour of the HWP has been fully characterized at room and cryogenic temperatures with incoherent radiation from a polarizing Fourier transform spectrometer. We develop a novel empirical model, complementary to the physical and analytical ones available in the literature, that allows us to recover the HWP Mueller matrix and phase shift as a function of frequency and extrapolated to 4K. We show that most of the HWP non-idealities can be modelled by quantifying one wavelength-dependent parameter, the position of the HWP equivalent axes, which is then readily implemented in a map-making algorithm. We derive this parameter for a range of spectral signatures of input astronomical sources relevant to BLASTPol, and provide a benchmark example of how our method can yield improved accuracy on measurements of the polarization angle on the sky at submillimetre wavelengths.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): magnetic fields - polarization - balloons - instrumentation: polarimeters - techniques: polarimetric - submillimetre: ISM

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2

Query : 2014MNRAS.437.2772M

Basic data :
NGC 3372 -- HII Region
Other object types: otypes_help 		HII (GUM,RCW), SFR (2016MNRAS), ISM (BRAN), X (1E), Rad (MSH)
ICRS coord. (ep=J2000) : 		10 45 02.23 -59 41 59.8 (Optical) [ ] E 2019ApJ...870...32K
FK4 coord. (ep=B1950 eq=1950) : 		10 43 05.54 -59 26 11.9 [ ]
Gal coord. (ep=J2000) : 		287.60158 -00.64452 [ ]
Proper motions mas/yr : 		-6.55 2.17 [0.07 0.07 90] D 2019ApJ...870...32K
Parallaxes (mas): 		0.38 [0.04] C 2019ApJ...870...32K
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Identifiers (12) :
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NGC 3372 GUM 33 NAME Keyhole NAME eta Car Nebula
BRAN 316A MHR 11 NAME Car Nebula NAME Keyhole Nebula
1E 1044.0-5940 MSH 10-5-07 NAME Carina Nebula RCW 53

References (1071 between 1850 and 2026) (Total 1071)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Distance : 1    Plx : 1    PM : 1   

   

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Data at NED - NASA/IPAC Extragalactic Database : NGC 3372

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NGC 3372

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