activity
19972024
most citedQuasars, their host galaxies, and their central black holes

537 citations · 6.4k across the 147 of their papers we have counts for

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Showing 2007Show all

9 papers · 1 filter

astro-ph2007★ 28 cited

HST NIR Snapshot Survey of 3CR Radio Source Counterparts II: An Atlas and Inventory of the Host Galaxies, Mergers and Companions

David J. E. Floyd, David Axon, Stefi Baum +10

We present the second part of an H-band (1.6 microns) atlas of z<0.3 3CR radio galaxies, using the Hubble Space Telescope Near Infrared Camera and Multi-Object Spectrometer (HST NI…

astro-ph2007★ 2 cited

The Acceleration History of the Universe and the Properties of the Dark Energy

Ruth A. Daly, S. G. Djorgovski

The model-independent method of using type Ia supernovae proposed and developed by Daly and Djorgovski (2003, 2004) has been applied to the Riess et al. (2007) supernovae sample. A…

astro-ph2007★ 147 cited

Improved Constraints on the Acceleration History of the Universe and the Properties of the Dark Energy

Ruth A. Daly, S. G. Djorgovski, Kenneth A. Freeman +4

We extend and apply a model-independent analysis method developed earlier by Daly & Djorgovski to new samples of supernova standard candles, radio galaxy and cluster standard ruler…

astro-ph2007★ 62 cited

WFPC2 LRF Imaging of Emission Line Nebulae in 3CR Radio Galaxies

G. C. Privon, C. P. O'Dea, S. A. Baum +5

We present HST/WFPC2 Linear Ramp Filter images of high surface brightness emission lines (either [OII], [OIII], or H-alpha+[NII]) in 80 3CR radio sources. We overlay the emission l…

astro-ph2007★ 32 cited

Cosmological Studies with Radio Galaxies and Supernovae

Ruth A. Daly, Matthew P. Mory, C. P. O'Dea +4

Physical sizes of extended radio galaxies can be employed as a cosmological "standard ruler", using a previously developed method. Eleven new radio galaxies are added to our previo…

astro-ph2007

The Properties and Gaseous Environments of Powerful Classical Double Radio Galaxies

Ruth Daly, C. O'Dea, P. Kharb +3

The properties of a sample of 31 very powerful classical double radio galaxies with redshifts between zero and 1.8 are studied. The source velocities, beam powers, ambient gas dens…

astro-ph2007★ 28 cited

Star Formation, Radio Sources, Cooling X-ray Gas, and Galaxy Interactions in the Brightest Cluster Galaxy in 2A0335+096

Megan Donahue, Ming Sun, Christopher P. O'Dea +2

We present deep emission-line imaging taken with the SOAR Optical Imaging Camera of the brightest cluster galaxy (BCG) in the nearby (z=0.035) X-ray cluster 2A0335+096. We analyze…

astro-ph2007★ 35 cited

Dominant Nuclear Outflow Driving Mechanisms in Powerful Radio Galaxies

Dan Batcheldor, Clive Tadhunter, Joanna Holt +4

In order to identify the dominant nuclear outflow mechanisms in Active Galactic Nuclei, we have undertaken deep, high resolution observations of two compact radio sources (PKS 1549…

astro-ph2007★ 36 cited

Star formation in the hosts of GHz peaked spectrum and compact steep spectrum radio galaxies

A. Labiano, C. P. O'Dea, P. D. Barthel +2

AIMS: Search for star formation regions in the hosts of potentially young radio galaxies (Gigahertz Peaked Spectrum and Compact Steep Spectrum sources). METHODS: Near-UV imaging wi…