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A sample of 6C radio sources designed to find objects at redshift > 4: II --- spectrophotometry and emission line properties

(2001)

Authors:

Matt J Jarvis, Steve Rawlings, Mark Lacy, Katherine M Blundell, Andrew J Bunker, Steve Eales, Richard Saunders, Hyron Spinrad, Daniel Stern, Chris J Willott

Extremely red radio galaxies

(2001)

Authors:

Chris J Willott, Steve Rawlings, Katherine M Blundell

The radio galaxy K-z relation to z ~ 4.5

ArXiv astro-ph/0103364 (2001)

Authors:

Matt J Jarvis, Steve Rawlings, Steve Eales, Katherine M Blundell, Chris J Willott

Abstract:

Using a new radio sample, 6C* designed to find radio galaxies at z > 4 along with the complete 3CRR and 6CE sample we extend the radio galaxy K-z relation to z~4.5. The 6C* K-z data significantly improve delineation of the K-z relation for radio galaxies at high redshift (z > 2). Accounting for non-stellar contamination, and for correlations between radio luminosity and estimates of stellar mass, we find little 91探花 for previous claims that the underlying scatter in the stellar luminosity of radio galaxies increases significantly at z > 2. This indicates that we are not probing into the formation epoch until at least z > 3.

The radio galaxy K-z relation to z ~ 4.5

(2001)

Authors:

Matt J Jarvis, Steve Rawlings, Steve Eales, Katherine M Blundell, Chris J Willott

Images of an equatorial outflow in SS 433

Astrophysical Journal 562:1 PART II (2001) L79-L82

Abstract:

We have imaged the X-ray binary SS 433 with unprecedented Fourier plane coverage at 6 cm using simultaneously the Very Long Baseline Array (VLBA), MERLIN, and the Very Large Array and also at 20 cm using the VLBA. At both wavelengths we have securely detected smooth, low surface brightness emission having the appearance of a "ruff" or collar attached perpendicularly to the well-studied knotty jets in this system and extending over at least a few hundred AU. We interpret this smooth emission as a windlike outflow from the binary and discuss its implications for the present evolutionary stage of this system. 漏 2001. The American Astronomical Society. All rights reserved.