The Nature of the Compact/Symmetric Near-IR Continuum Source in 4C 40.36

Simple item page
dc.creatorEgami, E.
dc.creatorArmus, L.
dc.creatorNeugebauer, G.
dc.creatorSoifer, B. T.
dc.creatorEvans, A. S.
dc.creatorMurphy Jr., T. W.
dc.date1999-09-30
dc.date.accessioned2026-07-07T02:33:35Z
dc.date.available2026-07-07T02:33:35Z
dc.descriptionUsing NICMOS on HST, we have imaged the emission-line nebulae and the line-free continuum in 4C 40.36, a ultra-steep spectrum FR II radio galaxy at z=2.269. The line-free continuum was found to be extremely compact and symmetric while the emission-line nebulae seen in H-alpha+[N II] show very clumpy structures spreading almost linearly over 16 kpc. However, this linear structure is clearly misaligned from the radio axis. The SED of the line-free continuum is very flat, suggesting that if the continuum emission is produced by a single source, it is likely to be a young bursting stellar population or scattered AGN light. However, because of the lack of a line-free optical image with a comparable spatial resolution, we cannot exclude the possibility that the observed SED is a composite of a young blue population and an old red population.
dc.description4 pages, 2 figures; to appear in the proceedings of "The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift", eds. A.J.Bunker and W. J. M. van Breugel
dc.identifierhttps://arxiv.org/abs/astro-ph/9909517
dc.identifierhttp://arxiv.org/abs/astro-ph/9909517
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14902
dc.subjectAstrophysics
dc.titleThe Nature of the Compact/Symmetric Near-IR Continuum Source in 4C 40.36
dc.typetext

Files

Collections

arXiv