Visible and Near-Infrared Spectrophotometry of Saturn's Rings.

Near-Infrared Spectrophotometry of the Satellites and Rings of Uranus

New spectrophotometry from 1.5 to 2.5 /zm is reported for the Uranian satellites Titania, Oberon, and Umbriel. A spectrum of the rings of Uranus from 2.0 to 2.4/zm is also reported. No evidence is found for frost covering the surface of the ring material, consistent with the low albedo of the rings (P~ = 0.03) previously reported by Nicholson and Jones (1980). The surfaces of the satellites are...

Portable Refrigerant Identification by Near Infrared Spectrophotometry

Visible & Near - Infrared Photometric Analysis

We have re-analyzed archival HST and Subaru data of the recently discovered planetary mass companion (PMC) GQ Lup B. With these we produce the first R and I band photometry of the companion and fit a radius and effective temperature using detailed model atmospheres. We find an effective temperature of 2335 ± 100K, and a radius of 0.38 ± 0.05R⊙ and luminosity of log(L/L⊙) = −2.42 ± 0.07 (at 140p...

Tunable Visible and Near Infrared Photoswitches.

A class of tunable visible and near-infrared donor-acceptor Stenhouse adduct (DASA) photoswitches were efficiently synthesized in 2 to 4 steps from commercially available starting materials with minimal purification. Using either Meldrum's or barbituric acid "acceptors" in combination with aniline-based "donors" an absorption range spanning from 450 to 750 nm is obtained. Additionally, photoiso...

Design of a Near Infrared Spectrophotometry Brain Imaging System

Measuring brain activity is at task generally left for EEG or fMRI. However, there is a lesser known imaging technique known as near infrared spectrophotometry, in which near infrared light is shown into the patients head to measure changes in oxygenation that directly relate to brain activity. This paper describes a low-cost, wireless, portable near infrared spectrophotometry system that is ab...