Near-infrared imaging of gigahertz peaked spectrum, compact steep spectrum, and large-scale FR II radio galaxies

Citation
Wh. De Vries et al., Near-infrared imaging of gigahertz peaked spectrum, compact steep spectrum, and large-scale FR II radio galaxies, ASTROPHYS J, 503(1), 1998, pp. 138-155
Citations number
44
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
503
Issue
1
Year of publication
1998
Part
1
Pages
138 - 155
Database
ISI
SICI code
0004-637X(19980810)503:1<138:NIOGPS>2.0.ZU;2-6
Abstract
In this paper we present the data from our J-, H-, and K-band imaging progr am of powerful radio sources. The sample consists of radio galaxies classif ied as either compact (<1 kpc), intermediate sized (1-20 kpc), or large-sca le classical double (>20 kpc) radio sources. Source images, photometry resu lts, radial profiles, and profile fits are presented. Source decomposition of total flux into point-spread function (PSF) and extended contributions i ndicate all sources are nucleated to roughly the same level at J, H, and K bands, arguing against the notion that the suspected higher nuclear absorpt ion in the most compact class would render those sources relatively more nu cleated at the longer wavelengths. No significant differences in near-IR ho st galaxy properties have been found. In a companion paper we discuss color -color properties, comparisons with predictions made by a stellar synthesis code, and near-IR broadband spectral properties.