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35 papers · 1 filter
Escape of Lyman alpha Emission in the Starburst Galaxy Mkn 357 - a Wind's Far Side
William C. Keel
HST imaging and slitless spectroscopy are used to examine where the strong Lyman alpha emission escapes from the interstellar medium in the starburst galaxy Mkn 357. An H-alpha ima…
Short-term optical variability of high-redshift QSO's
R. Bachev, A. Strigachev, E. Semkov
This paper presents results of a search for short-term variability in the optical band of selected high-luminosity, high-redshift radio-quiet quasars. Each quasar has been monitore…
The Rest-frame Optical Spectra of SCUBA Galaxies
Mark Swinbank, Ian Smail, Scott Chapman +3
We present near-infrared spectroscopy and narrow-band imaging at the wavelength of redshifted H-alpha for a sample of 30 high-redshift, far-infrared luminous galaxies. This sample…
Average magnification effect of clumping of matter
T. W. B. Kibble, Richard Lieu
The aim of this paper is to re-examine the question of the average magnification in a universe with some inhomogeneously distributed matter. We present an analytic proof, valid und…
Modeling the 3C 120 Radio Jet from 1 to 30 Milliarcseconds
P. E. Hardee, R. C. Walker, J. L. Gomez
The predicted spatial development of helical structures along an expanding jet are used to model observed structures and motions in the 3C 120 jet. Proper motions of helical compon…
Monte Carlo simulation of equilibrium L1_0 ordering in FePt nanoparticles
R. V. Chepulskii, J. Velev, W. H. Butler
First, second and third nearest neighbor mixing potentials for FePt alloys, were calculated from first principles using a Connolly-Williams approach. Using the mixing potentials ob…