Synthetic Infrared Spectra

Infrared Spectra of Tissues.

Near-Infrared Spectra of Ultraluminous Infrared Galaxies.

Near-infrared spectra with a resolution of lambda&solm0;Deltalambda approximately 1100 in the rest-wavelength range of 1.8-2.2 µm have been obtained for a complete sample of 33 ultraluminous infrared galaxies (ULIRGs). Of the 33 objects observed, two show evidence of a central active galactic nucleus (AGN) through either a broad Paschen-alpha line or emission in the 1.963 µm fine structure of [...

A synthetic data set of high-spectral-resolution infrared spectra for the Arctic atmosphere

Cloud microphysical and macrophysical properties are critical for understanding the role of clouds in climate. These properties are commonly retrieved from ground-based and satellite-based infrared remote sensing instruments. However, retrieval uncertainties are difficult to quantify without a standard for comparison. This is particularly true over the polar regions, where surface-based data fo...

Taxonomic Value of Infrared Spectra.

Efforts to demonstrate species or generic relationships among bacteria throu-h the use of infrared (IR) spectra of whole cells (Norris, J. Hyg. 57:326, 1959) have been increasing despite frequent cautions (Kenner et al., J. B3acteriol. 75:16, 1958) that such procedures are fraught with experimental pitfalls. AIany of the reports concerning bacterial identification by this technique are favorabl...

Synthetic hydrogen spectra of prominence oscillations

Context. Prominence oscillations have been mostly detected using Doppler velocity, although there are also claimed detections by means of periodic variations in half-width or line intensity. However, scarce observational evidence exists about simultaneous detection of oscillations in several spectral indicators. Aims. Our main aim here is to explore the relationship between spectral indicators,...