The multiplicity of 250-[mu]m Herschel sources in the COSMOS field

We investigate the multiplicity of extragalactic sources detected by the Herschel Space Observatory in the COSMOS field. Using 3.6- and 24-[mu]m catalogues, in conjunction with 250-[mu]m data from Herschel, we seek to determine if a significant fraction of Herschel sources are composed of multiple c...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2016-07, Vol.460 (1), p.1119
Main Authors: Scudder, Jillian M, Oliver, Seb, Hurley, Peter D, Griffin, Matt, Sargent, Mark T, Scott, Douglas, Wang, Lingyu, Wardlow, Julie L
Format: Article
Language:English
Subjects:
Bayesian analysis
Probability distribution
Space telescopes
Star & galaxy formation
Online Access:Get full text
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Summary:We investigate the multiplicity of extragalactic sources detected by the Herschel Space Observatory in the COSMOS field. Using 3.6- and 24-[mu]m catalogues, in conjunction with 250-[mu]m data from Herschel, we seek to determine if a significant fraction of Herschel sources are composed of multiple components emitting at 250 [mu]m. We use the XID+ code, using Bayesian inference methods to produce probability distributions of the possible contributions to the observed 250-[mu]m flux for each potential component. The fraction of Herschel flux assigned to the brightest component is highest for sources with total 250-[mu]m fluxes
ISSN:0035-8711
1365-2966