Joel C. Allred

TL;DR: A new spin-exchange relaxation-free (SERF) atomic magnetometer is described, and theoretical analysis shows that fundamental sensitivity limits of this device are below 0.01 fT Hz-1/2, which would enable new applications, including the possibility of mapping non-invasively the cortical modules in the brain.

TL;DR: A K magnetometer is demonstrated in which spin-exchange relaxation is completely eliminated by operating at high K density and low magnetic field, extending a previous theoretical analysis of spin exchange in low magnetic fields to arbitrary spin polarizations.

TL;DR: In this paper, the authors report results from a multi-wavelength observing campaign conducted during 2000 March on the flare star AD Leo and find that the emission properties are remarkably similar even for flares of very different evolutionary morphology.

TL;DR: The results of a campaign to observe flares on the M dwarf flare star EV Lacertae over the course of two days in 2001 September, utilizing a combination of radio continuum, optical photometric and spectroscopic, ultraviolet spectroscopy, and X-ray Spectroscopic observations to characterize the multi-wavelength nature of flares from this active, single, late-type star was presented in this article.

TL;DR: In this article, the authors studied the evolution of the Halpha and Ca II 8542 {\AA} lines using high spatial, temporal and spectral resolution ground-based observations of an M1.1 flare obtained with the Swedish 1-m Solar Telescope.