activity
19962020
most citedGipsyX/RTGx, A New Tool Set for Space Geodetic Operations and Research

416 citations · 1.3k across the 19 of their papers we have counts for

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11 papers · 1 filter

astro-ph2006★ 22 cited

Discovery of an X-ray Jet and Extended Jet Structure in the Quasar PKS 1055+201

D. A. Schwartz, H. L. Marshall, J. E. J. Lovell +10

This letter reports rich X-ray jet structures found in the Chandra observation of PKS 1055+201. In addition to an X-ray jet coincident with the radio jet we detect a region of exte…

astro-ph2006★ 45 cited

Observations of Magnetic Fields and Relativistic Beaming in Four Quasar Jets

D. A. Schwartz, H. L. Marshall, J. E. J. Lovell +9

We discuss the physical properties of four quasar jets imaged with the Chandra X-ray Observatory in the course of a survey for X-ray emission from radio jets. These objects have su…

astro-ph2005★ 11 cited

The Knotty Question of the Jet of PKS B1421-490

J. M. Gelbord, H. L. Marshall, D. M. Worrall +9

We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond t…

astro-ph2004★ 151 cited

A Chandra Survey of Quasar Jets: First Results

H. L. Marshall, D. A. Schwartz, J. E. J. Lovell +6

We present results from Chandra X-ray imaging and spectroscopy of a flux-limited sample of flat spectrum radio-emitting quasars with jet-like extended structure. Twelve of twenty q…

astro-ph2004

The VSOP 2 mission: Imaging capabilities

R. Dodson, H. Hirabayashi, Y. Murata +4

Given the scientific goals of VSOP-2, including the possibility of observations of the shadows of black holes, we have investigated the fidelity of the recovered images given a typ…

astro-ph2003★ 6 cited

CHANDRA Observations of X-ray Jet Structure on kpc to Mpc Scales

D. A. Schwartz, H. L. Marshall, B. P. Miller +7

With its exquisite spatial resolution of better than 0.5 arcsecond, the Chandra observatory is uniquely capable of resolving and studying the spatial structure of extragalactic X-r…