Roger Blandford

TL;DR: In this article, the authors show that the assumption of uncorrelated intrinsic ellipticities of target sources that is usually made in searches for weak gravitational lensing due to large-scale mass inhomogeneities (''field lensing'') is unwarranted.

TL;DR: In this paper, an electromagnetic model of relativistic jets is proposed and it is suggested that these jets are interpreted as current flows and that they owe their persistence and collimation to the pinching action of the magnetic field.

TL;DR: In this article, the authors discuss the science program (star formation and origins of planetary systems, structure and evolution of the interstellar medium, stellar population, the galactic and extragalactic distance scale, nature of galaxy nuclei, AGNs, and QSOs), formation of galaxies at high redshifts, and cosmology).

TL;DR: In this article, the physical conditions within these Galactic sources, their interaction with their environment, their possible formation, and contrast them with their extragalactic counterparts are examined, and constraints on particle acceleration in the jets are imposed using X-ray and radio observations, the $\gamma$-ray flux from e$+$-e$^-$ jets expected at EGRET energies and the flux in infrared lines from an e-p jet are estimated.

TL;DR: A hydromagnetic wind model from a dusty molecular disk (Emmering, Blandford, & Shlosman 1992) was applied to the BLR in NGC 5548 and produced synthetic C IV line profiles as a function of time as discussed by the authors.