Unexpected discovery of estrone in the rotational spectrum of estradiol: A systematic investigation of a CP-FTMW spectrum

2022 ◽  
Author(s):  
Pablo Pinacho ◽  
Swantje V. M. Caliebe ◽  
María Mar Quesada-Moreno ◽  
Sabrina Zinn ◽  
Melanie Schnell
Keyword(s):  
High Resolution ◽  
Gas Phase ◽  
Systematic Investigation ◽  
Spectral Lines ◽  
Rotational Spectrum

We report the reinvestigation of the high-resolution rotational spectrum of estradiol. After removing the known spectral lines corresponding to three conformers of estradiol identified in the gas phase before, a...

The identification of In2O in the gas phase by high resolution electronic spectroscopy

1997 ◽  
Vol 107 (11) ◽  
pp. 4439-4442 ◽  
Author(s):  
Nicholas M. Lakin ◽  
Ger van den Hoek ◽  
Ian R. Beattie ◽  
John M. Brown
Keyword(s):  
High Resolution ◽  
Gas Phase ◽  
Electronic Spectroscopy

scholarly journals Characteristics of High-Resolution Versions of the Met Office Unified Model for Forecasting Convection over the United Kingdom

2008 ◽  
Vol 136 (9) ◽  
pp. 3408-3424 ◽  
Author(s):  
Humphrey W. Lean ◽  
Peter A. Clark ◽  
Mark Dixon ◽  
Nigel M. Roberts ◽  
Anna Fitch ◽  
...  
Keyword(s):  
High Resolution ◽  
Weather Forecasting ◽  
Subjective Evaluation ◽  
Systematic Investigation ◽  
Unified Model ◽  
Small Cells ◽  
Selective Precipitation ◽  
Delayed Initiation ◽  
Convective Cells ◽  
Better Than

Abstract With many operational centers moving toward order 1-km-gridlength models for routine weather forecasting, this paper presents a systematic investigation of the properties of high-resolution versions of the Met Office Unified Model for short-range forecasting of convective rainfall events. The authors describe a suite of configurations of the Met Office Unified Model running with grid lengths of 12, 4, and 1 km and analyze results from these models for a number of convective cases from the summers of 2003, 2004, and 2005. The analysis includes subjective evaluation of the rainfall fields and comparisons of rainfall amounts, initiation, cell statistics, and a scale-selective verification technique. It is shown that the 4- and 1-km-gridlength models often give more realistic-looking precipitation fields because convection is represented explicitly rather than parameterized. However, the 4-km model representation suffers from large convective cells and delayed initiation because the grid length is too long to correctly reproduce the convection explicitly. These problems are not as evident in the 1-km model, although it does suffer from too numerous small cells in some situations. Both the 4- and 1-km models suffer from poor representation at the start of the forecast in the period when the high-resolution detail is spinning up from the lower-resolution (12 km) starting data used. A scale-selective precipitation verification technique implies that for later times in the forecasts (after the spinup period) the 1-km model performs better than the 12- and 4-km models for lower rainfall thresholds. For higher thresholds the 4-km model scores almost as well as the 1-km model, and both do better than the 12-km model.

The high resolution rotational spectrum of 2-cyanoaziridine

1980 ◽  
Vol 82 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Ronald D. Brown ◽  
Peter D. Godfrey ◽  
Alfred L. Ottrey
Keyword(s):  
High Resolution ◽  
Rotational Spectrum

scholarly journals Magnetic fields of rapidly oscillating Ap stars

1993 ◽  
Vol 139 ◽  
pp. 132-132
Author(s):  
G. Mathys
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Magnetic Fields ◽  
Zeeman Effect ◽  
Rotation Frequency ◽  
Spectral Lines ◽  
Driving Mechanism ◽  
Line Splitting ◽  
Ap Stars ◽  
The Magnetic Field

Magnetic field appears to play a major role in the pulsations of rapidly oscillating Ap (roAp) stars. Understanding of the behaviour of these objects thus requires knowledge of their magnetic field. Such knowledge is in particular essential to interpret the modulation of the amplitude of the photometric variations (with a frequency very close to the rotation frequency of the star) and to understand the driving mechanism of the pulsation. Therefore, a systematic programme of study of the magnetic field of roAp stars has been started, of which preliminary (and still very partial) results are presented here.Magnetic fields of Ap stars can be diagnosed from the Zeeman effect that they induced in spectral lines either from the observation of line-splitting in high-resolution unpolarized spectra (which only occurs in favourable circumstances) or from the observation of circular polarization of the lines in medium- to high-resolution spectra.

Structure of the Benzene-Argon Complex in the Gas Phase at 3 Kelvin

1981 ◽  
Vol 36 (12) ◽  
pp. 1338-1339 ◽  
Author(s):  
K. H. Fung ◽  
H. L. Selzle ◽  
E. W. Schlag
Keyword(s):  
High Resolution ◽  
Gas Phase ◽  
Benzene Ring ◽  
Symmetry Axis ◽  
Benzene Molecule ◽  
Band Contour ◽  
Hypersonic Jet

Abstract The structure of the benzene-argon complex is determined from a high resolution band contour of the ν6 transition of the complex measured in a hypersonic jet. It is shown that the argon is located on the main symmetry axis of the benzene molecule. The distance from the center of the benzene ring is found to be 3.4 Å.

Sign in / Sign up

Export Citation Format

Share Document