Zobrazeno 1 - 10
of 120
pro vyhledávání: '"R. GENDRIESCH"'
Autor:
Holger S. P. Müller, Frank Lewen, G. Klapper, J. A. Coxon, R. Gendriesch, Karl M. Menten, Gisbert Winnewisser
Publikováno v:
Astronomy & Astrophysics. 497:927-930
Astronomical observations of (sub)millimeter wavelength pure rotational emission lines of the second most abundant molecule in the Universe, CO, hold the promise of probing regions of high temperature and density in the innermost parts of circumstell
Publikováno v:
Zeitschrift für Naturforschung A. 58:129-138
We report concise measurements of the bending vibration transition (0,11,0) ← (0,00,0) near 63.416529(40) cm−1 of the carbon cluster CCC in the electronic ground state (X1Σ+ g ). The ν2 vibration- rotation spectrum consists of P-, Q-, and R-bra
Publikováno v:
Journal of Molecular Structure. 599:293-304
The rotational spectrum of the NH 2 radical has been studied with the frequency stabilized Cologne Sideband Spectrometer for Terahertz Applications (COSSTA) between 1.78 and 2.00 THz with measurement accuracies of 50–200 kHz. The highly precise new
Autor:
J. D. Cruzan, R. Gendriesch, A. Van Orden, Richard J. Saykally, R. A. Provencal, Thomas F. Giesen, Frank Lewen, Gisbert Winnewisser
Publikováno v:
The Astrophysical Journal. 551:L181-L184
We describe more fully our original tentative interstellar detection of the triatomic pure carbon chain molecule, CCC, in absorption toward the Galactic center source Sgr B2. C3 was detected with the Kuiper Airborne Observatory (KAO) by observing the
Publikováno v:
Zeitschrift für Naturforschung A. 56:329-332
The five lowest rotational transitions of 12C180 (J =2 ← 1 to J = 6 ← 5) have been measured by saturation dip spectroscopy with an experimental accuracy of 1 to 1.5 kHz, employing phase-stabilized backward-wave oscillators. The five J rotational
Publikováno v:
Zeitschrift für Naturforschung A. 55:486-490
The ground state rotational spectrum of H2C18O has been studied between 485 and 835 GHz with a sample of natural isotopic composition. Additional lines have been recorded around 130 GHz and near 1.85 THz, using a recently developed far-infrared laser
Publikováno v:
Journal of Molecular Spectroscopy. 201:124-127
The five lowest J rotational transitions of 13 C 16 O have been measured by saturation-dip spectroscopy to an accuracy of about 2 kHz, employing phase-stabilized backward-wave oscillators (BWOs). These highly precise measurements cover the transition
Autor:
Frank Lewen, Robin Bocquet, Jean Demaison, U. Wötzel, Holger S. P. Müller, Heinrich Mäder, Laurent Margulès, Gisbert Winnewisser, R. Gendriesch
Publikováno v:
Physical Chemistry Chemical Physics. 2:3401-3404
The pure rotational spectrum of H213CO in its ground vibrational state has been investigated extensively between 8 and 1900 GHz using samples of natural isotopic abundance as well as samples enriched in 13C. The accurate new line frequencies were sub
Publikováno v:
Journal of Molecular Spectroscopy. 196:139-145
With the Cologne submillimeter-wave supersonic jet spectrometer, we extended molecular jet spectroscopy with backward wave oscillators up to frequencies of about 600 GHz. For the first time, the van der Waals stretching vibration of the Ar-CO molecul
Publikováno v:
International Journal of Infrared and Millimeter Waves. 20:1073-1083
We report an automatic frequency control (AFC) for an optically pumped far infrared (FIR) ring laser applicable for high resolution THz sideband spectroscopy by mixing a fraction of the laser power and a harmonic of a phase-locked synthesizer on a pl