Observations of the Hubble Deep Field with the Infrared Space Observatory - IV. Association of sources with Hubble Deep Field galaxies

We discuss the identification of sources detected by the Infrared Space Observatory (ISO) at 6.7 and 15 μm in the Hubble Deep Field (HDF) region. We conservatively associate ISO sources with objects in existing optical and near-infrared HDF catalogues using the likelihood ratio method, confirming th...

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Bibliographic Details
Authors: Mann, Robert G., Oliver, Seb, Serjeant, Stephen, Rowan-Robinson, Michael, Baker, A. J., Eaton, N., Efstathiou, Andreas, Goldschmidt, P., Mobasher, Bahram, Sumner, T. J., Danese, L., Elbaz, David, Franceschini, Alberto, Egami, Eiichi, Kontizas, Maria, Lawrence, A., McMahon, Richard G., Norgaard-Nielsen, H. U., Pèrez-Fournon, Ismael, González-Serrano, José Ignacio
Format: article
Status:Published version
Publication Date:1997
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/394002
Online Access:http://hdl.handle.net/10261/394002
Access Level:Open access
Keyword:Galaxies: evolution
Galaxies: starburst
Infrared: galaxies
Description
Summary:We discuss the identification of sources detected by the Infrared Space Observatory (ISO) at 6.7 and 15 μm in the Hubble Deep Field (HDF) region. We conservatively associate ISO sources with objects in existing optical and near-infrared HDF catalogues using the likelihood ratio method, confirming these results (and, in one case, clarifying them) with independent visual searches. We find 15 ISO sources to be reliably associated with bright [I814(AB) < 23] galaxies in the HDF, and one with an I814(AB) = 19.9 star, while a further 11 are associated with objects in the Hubble Flanking Fields (10 galaxies and one star). Amongst optically bright HDF galaxies, ISO tends to detect luminous, star-forming galaxies at fairly high redshift and with disturbed morphologies, in preference to nearby ellipticals.

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