Scudder, Jillian M. and Oliver, Seb and Hurley, Peter D. and Griffin, Matt and Sargent, Mark T. and Scott, Douglas and Wang, Lingyu and Wardlow, Julie L. (2016) The multiplicity of 250-μm Herschel sources in the COSMOS field. Monthly Notices of the Royal Astronomical Society, 460 (1). pp. 1119-1130. ISSN 0035-8711
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Abstract
We investigate the multiplicity of extragalactic sources detected by the Herschel Space Observatory in the COSMOS field. Using 3.6- and 24-μm catalogues, in conjunction with 250-μm data from Herschel, we seek to determine if a significant fraction of Herschel sources are composed of multiple components emitting at 250 μm. We use the XID+ code, using Bayesian inference methods to produce probability distributions of the possible contributions to the observed 250-μm flux for each potential component. The fraction of Herschel flux assigned to the brightest component is highest for sources with total 250-μm fluxes