An upper limit to polarized submillimetre emission in Arp 220

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dc.creatorSeiffert, Michael
dc.creatorBorys, Colin
dc.creatorScott, Douglas
dc.creatorHalpern, Mark
dc.date2006-10-16
dc.date.accessioned2026-07-07T10:23:55Z
dc.date.available2026-07-07T10:23:55Z
dc.descriptionWe report the results of pointed observations of the prototypical ultra-luminous infrared galaxy (ULIRG) Arp 220 at 850 microns using the polarimeter on the SCUBA instrument on the James Clerk Maxwell Telescope. We find a Bayesian 99 per cent confidence upper limit on the polarized emission for Arp 220 of 1.54 per cent, averaged over the 15 arcsec beam-size. Arp 220 can serve as a proxy for other, more distant such galaxies. This upper limit constrains the magnetic field geometry in Arp 220 and also provides evidence that polarized ULIRGs will not be a major contaminant for next-generation cosmic microwave background polarization measurements.
dc.description7 pages, 2 figures, accepted for publication in MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0610485
dc.identifierhttp://arxiv.org/abs/astro-ph/0610485
dc.identifierMon.Not.Roy.Astron.Soc.374:409-414,2007
dc.identifierdoi:10.1111/j.1365-2966.2006.11186.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176006
dc.subjectAstrophysics
dc.titleAn upper limit to polarized submillimetre emission in Arp 220
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