Search
Now showing items 1-10 of 10
The warped nuclear disk of radio galaxy 3C 449
(Astrophysical Journal, 2006)
Among radio galaxies containing nuclear dust disks, the bipolar jet axis is generally observed to be perpendicular to the disk major axis. The FR I radio source 3C 449 is an outlier to this statistical
majority, as it ...
BIMA millimeter-wave observations of the core-jet and molecular gas in the FR I radio galaxy NGC 3801
(Astrophysical Journal, 2005-08-20)
We present BIMA 3 mm observations of the radio continuum source and the
molecular gas disk in the radio loud Fanaroff & Riley Type I (FR I) galaxy NGC
3801. We have detected a continuum source in the nucleus and determined ...
Star formation in hosts of young radio galaxies
(QSO Hosts: Evolution and Environment, 2005-08)
We present near ultraviolet imaging with the Hubble Space Telescope Advanced Camera for Surveys, targeting
young radio galaxies (Gigahertz Peaked Spectrum and Compact Steep Spectrum sources), in search of star
formation ...
The host galaxies of luminous quasars
(Blackwell Publishing, 2004-11)
We present the results of a deep HST/WFPC2 imaging study of 17 quasars at z~=0.4, designed to determine the properties of their host galaxies. The sample consists of quasars with absolute magnitudes in the range −24 ≥ MV ...
The Parsec-scale radio structure of NGC 1068 and the nature of the nuclear radio source
(American Astronomical Society, 2004-10-01)
We present sensitive, multifrequency Very Long Baseline Array (VLBA2) images of the nuclear
radio sources of NGC 1068. At 5 GHz and 8.4 GHz, the radio continuum source S1, argued to
mark the location of the hidden active ...
Quasars, their host galaxies, and their central black holes
(Blackwell Publishing, 2003-04-09)
We present the final results from our deep HST imaging study of the host galaxies of radio-quiet quasars (RQQs), radio-loud quasars (RLQs) and radio galaxies (RGs). We describe and analyze new WFPC2 R-band observations for ...
HI absorption in the gigamaser galaxy TXS 2226-184 and the relation between HI absorption and water emission
(American Astronomical Society, 2002-07-20)
We report on the discovery of H i in absorption toward the gigamaser galaxy TXS 2226-184 using the Very Large Array. The absorption appears to consist of two components—one with a width of 125 km s^-1 and one broader (420 ...
A NICMOS imaging study of high-z quasar host galaxies
(Blackwell Publishing, 2001-10)
We present the first results from a major Hubble Space Telescope programme designed
to investigate the cosmological evolution of quasar host galaxies from z~=2 to the
present day. Here we describe J and H-band NICMOS ...
High-resolution radio observations of Seyfert galaxies in the extended 12-micron sample - II. The Properties of compact radio components
(Blackwell Publishing, 2001-08)
We discuss the properties of compact nuclear radio components in Seyfert galaxies from the extended 12 µm AGN sample of Rush et al. (1993). Our main results can be summarised as follows.
Type 1 and type 2 Seyferts produce ...
High-resolution radio observations of Seyfert galaxies in the extended 12-micron sample - I. The Observations
(Blackwell Publishing, 2000-05)
We present 8.4 GHz VLA A–configuration observations of 87 sources from the
mid–infrared–selected AGN sample of Rush et al. (1993). These 0.25 arcsec resolution
observations allow elongated radio structures tens of parsecs ...