Differential Microlensing Measurements of Quasar Broad Line Kinematics in Q2237+0305

The detailed workings of the central engines of powerful quasars remain a mystery. This is primarily due to the fact that, at their cosmological distances, the inner regions of these quasars are spatially unresolvable. Reverberation mapping is now beginning to unlock the physics of the Broad Emission Line Region (BELR) in nearby, low-luminosity quasars, however it is still unknown whether this gas is dominated by virial motion, by outflows, or infall. The challenge is greater for more distant, powerful sources due to the very long response time of the BELR to changes in the continuum. We present a new technique for probing the kinematic properties of the BELR and accretion disk of high-z quasars using differential microlensing, and show how substantial information can be gained through a single observation of a strongly-lensed quasar using integral field spectroscopy. We apply this technique to GMOS IFU observations of the multiply-imaged quasar Q2237+0305, and find that the observed microlensing signature in the CIII] broad emission line favours gravitationally-dominated dynamics over an accelerating outflow.Comment: 16 pages, 14 figure

Host country responses to HIV-infected black african migrants and refugees (no public version)

Aotearoa New Zealand Social Work, 26(4), 25-36

STEM Artwork as Communicator of Research at UCF

We will provide a summary of the STEAM component of the Icubed project at UCF, which is funded by NSF. STEAM is an effort to create synergy between STEM researchers and visual artists, and establish collaborations at all levels which eventually lead to a visual and exciting communication of research happening at UCF. During the past three years, this component of the Icubed project at UCF has grown dramatically and has become widely known. An overview of the experience collected, the achievements established, and our future plans will be given

Side-effects of herbicides on the size and activity of the soil microflora: DNOC as a test case

International audienc