Internal rotation in high-resolution ultraviolet spectra. I. Semirigid model of a C2v top–Cs frame internal motion

2001 ◽  
Vol 115 (24) ◽  
pp. 11139-11146 ◽  
Author(s):  
Martin Schäfer
Keyword(s):  
High Resolution ◽  
Internal Rotation ◽  
Internal Motion ◽  
Ultraviolet Spectra

scholarly journals Barriers to Internal Rotation, Ultraviolet Spectra, and Conformations of N,N-Dimethyl-N'-arylthioureas and N,N,N'-Trimethylthioureas.

1970 ◽  
Vol 24 ◽  
pp. 2565-2582 ◽  
Author(s):  
Gunilla Isaksson ◽  
Jan Sandström ◽  
J. Munch-Petersen ◽  
Ragnar Ohlson ◽  
Akira Shimizu
Keyword(s):  
Internal Rotation ◽  
Ultraviolet Spectra ◽  
Barriers To Internal Rotation

HHigh Resolution Spectroscopy Using a Stabilized Diode Laser: the 2υ9 Band of HNO3

1988 ◽  
Vol 43 (5) ◽  
pp. 402-406 ◽  
Author(s):  
Thomas Giesen ◽  
M. Harter ◽  
R. Schieder ◽  
G. Winnewisser ◽  
K.M.T. Yamada
Keyword(s):  
High Resolution ◽  
Spectral Data ◽  
Internal Rotation ◽  
Diode Laser ◽  
Tunable Diode Laser ◽  
Fermi Resonance ◽  
High Resolution Spectrum ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Stabilization Technique

The high resolution spectrum of the 2 υ9 band of HNO3 has been recorded by a tunable diode laser spectrometer with a newly developed frequency stabilization technique. The spectral data were digitally stored and processed by a dedicated micro-computer in order to improve the sensitivity and the precision of the measurements. In addition to the anomalies due to the Fermi resonance with the υ5 = 1 state, we have observed the line doubling caused by the internal rotation of the OH group.

scholarly journals IUE Ultraviolet Spectra of the Interacting Binary U Cephei

1980 ◽  
Vol 88 ◽  
pp. 237-241
Author(s):  
Yoji Kondo ◽  
George E. McCluskey ◽  
Robert E. Stencel
Keyword(s):  
High Resolution ◽  
Ultraviolet Light ◽  
Stellar Evolution ◽  
Binary Systems ◽  
Light Curves ◽  
Close Binary ◽  
Eclipsing Binary ◽  
Ultraviolet Spectra ◽  
International Ultraviolet Explorer ◽  
Far Ultraviolet

The eclipsing binary U Cephei has proven to be of great interest in the study of stellar evolution in close binary systems. Batten (1974), Hall and Walter (1974), Rhombs and Fix (1976), Markworth (1977), and Olson (1978), among others, have recently reported on their intensive ground based studies of U Cephei. Kondo, McCluskey and Wu (1978) have investigated the ultraviolet light curves of U Cephei obtained with Astronomical Netherlands Satellite (ANS). Kondo, McCluskey and Stencel (1979) have discussed the International Ultraviolet Explorer (IUE) spectra of U Cephei. This paper discusses results incorporating additional IUE high resolution spectra of U Cephei obtained in both far-ultraviolet and mid-ultraviolet spectral regions.

High-resolution ultraviolet spectra of sympathetically-laser-cooledCd+ions

1996 ◽  
Vol 53 (1) ◽  
pp. 122-125 ◽  
Author(s):  
Hidetsuka Imajo ◽  
Kazuhiro Hayasaka ◽  
Ryuzo Ohmukai ◽  
Utako Tanaka ◽  
Masayoshi Watanabe ◽  
...  
Keyword(s):  
High Resolution ◽  
Ultraviolet Spectra

The Dynamical State of the Atmosphere of the Supergiant Alpha Cygni (A2 Iae) Derived from High-Resolution Ultraviolet Spectra

1988 ◽  
Vol 102 ◽  
pp. 383-386
Author(s):  
B. Boer ◽  
C. de Jager ◽  
H. Nieuwenhuijzen
Keyword(s):  
High Resolution ◽  
Velocity Profile ◽  
Optical Depth ◽  
Velocity Component ◽  
Line Of Sight ◽  
Velocity Of Sound ◽  
Ultraviolet Spectra ◽  
Dynamical State ◽  
Microturbulent Velocity ◽  
Visible Disk

AbstractIn order to study the apparent near instability of supergiant atmospheres high-resolution (λ/Δ λ = 8×104) BUSS (Balloon-borne Ultraviolet Stellar Spectrometer) spectra of the supergiant Alpha Cyg have been investigated. Equivalent widths of lines yield the variation of the line-of-sight microturbulent velocity component ζµwith optical depth τ. We find at τ5= 0.1: ζµequal to the velocity of sound. The consequent turbulent acceleration is directed outward, it increases outward and is about half the effective acceleration at τ5= 0.01. The macroturbulent velocity profile is double peaked with up- and downward velocities of 14 km s−1. We suggest that these motions are stochastic pulsations of large elements. At any time there are 30 to 40 such elements on the visible disk.

First results from the Goddard High-Resolution Spectrograph - Ultraviolet spectra of a starburst knot in NGC 1068

1991 ◽  
Vol 377 ◽  
pp. L25 ◽  
Author(s):  
J. B. Hutchings ◽  
F. Bruhweiler ◽  
A. Boggess ◽  
S. R. Heap ◽  
D. Ebbets ◽  
...  
Keyword(s):  
High Resolution ◽  
Ultraviolet Spectra ◽  
First Results ◽  
Ngc 1068

Internal rotation in 1,4-dimethylnaphthalene studied by high resolution laser spectroscopy

1990 ◽  
Vol 69 (2) ◽  
pp. 265-280 ◽  
Author(s):  
Paul Uijt De Haag ◽  
Rudie Spooren ◽  
Maarten Ebben ◽  
Leo Meerts ◽  
Jon T. Hougen
Keyword(s):  
High Resolution ◽  
Internal Rotation ◽  
Laser Spectroscopy
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