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Displaying 126 - 150 of 320

Line Assignments and Global Analysis of the Tunneling-Rotation Microwave Absorption Spectrum of Dimethylmethylphosphonate

January 1, 2003

Author(s)

N Ohashi, J Pyka, G Y. Golubiatnikov, Jon T. Hougen, R D. Suenram, Francis J. Lovas, A Lesarri, Y Kawashima

Molecular Spectral Databases (Diatomic, Triatomic, Hydrocarbon) (version 2.0)

January 1, 2003

Author(s)

Francis J. Lovas, E Tiemann, R D. Suenram, J S. Coursey, Svetlana A. Kotochigova, Karen J. Olsen, Robert A. Dragoset

NIST Recommended Rest Frequencies for Observed Interstellar Molecular Microwave Transitions - 2002 Revision (version 2.0)

January 1, 2003

Author(s)

Francis J. Lovas, Robert A. Dragoset

NIST Recommended Rest Frequencies for Observed Interstellar Molecular Microwave Transitions (version 2.0)

January 1, 2003

Author(s)

Francis J. Lovas, Robert A. Dragoset

The Microwave Spectrum of the C 3 Sugars; Glyceraldehyde and 1,3-Dihydroxy-2-propanone and the Dehydration Product 2-Hydroxy-2-Propene-1-al

January 1, 2003

Author(s)

Francis J. Lovas, R D. Suenram, David F. Plusquellic, H Mollendal

Triatomics spectral database

January 1, 2003

Author(s)

Francis J. Lovas, J S. Coursey, Svetlana A. Kotochigova, Jeffrey Chang, Karen J. Olsen, Robert A. Dragoset

Confirmation of Interstellar Acetone

October 1, 2002

Author(s)

Lewis E. Snyder, Francis J. Lovas, David Mehringer, Nina Yanti Miao, Y J. Kuan, J M. Hollis

We present new observations of interstellar acetone [(CH3)(2) CO] from both the NRAO 12 m and the BIMA array. We report NRAO 12 m detections of 13 new acetone emission features that can be assigned to 20 acetone transitions. These assignments are based on

Acetone: Laboratory Assignments and Predictions Through 620 GHz for the Vibrational-Torsional Ground State

September 1, 2002

Author(s)

P Groner, S Albert, E Herbst, Frank De Luccia, Francis J. Lovas, Brian J. Drouin, J C. Pearson

Acetone is an interstellar molecule with a complex rotational spectrum arising from the internal rotation of two methyl tops and their interaction with each other and the rigid-body rotation of the molecule. here, we report the measurement and assignment

Fourier Transform Microwave Spectrum and Ab Initio Study of Dimethyl Methylphosphonate

January 1, 2002

Author(s)

R D. Suenram, Francis J. Lovas, David F. Plusquellic, A Lesarri, Y Kawashima, J O. Jensen, A C. Samuels

The rotational spectrum of dimethyl methylphophonate (DMMP) has been studied using a pulsed molecular beam Fourier transform microwave spectrometer. The spectrum is complicated by the internal rotation motions of the three methyl tops in the molecule as

Fourier Transform Microwave Spectrum and Ab Initio Study of Dimethyl-Methylphosphonate

January 1, 2002

Author(s)

R D. Suenram, Francis J. Lovas, David F. Plusquellic, A Lesarri, Y Kawashima, J O. Jensen, A J. Samuels

Molecular Spectral Databases (Diatomic, Triatomic, Hydrocarbon) (version 1.0)

January 1, 2002

Author(s)

Francis J. Lovas, E Tiemann, R D. Suenram, J S. Coursey, Svetlana A. Kotochigova, Karen J. Olsen, Robert A. Dragoset

ITS-90 Calibration of Radiation Thermometers for RTP Using Wire/Thin-Film Thermocouples on a Wafer

June 1, 2001

Author(s)

Christopher W. Meyer, D P. DeWitt, Kenneth G. Kreider, Francis J. Lovas, Benjamin K. Tsai

Light-pipe radiation thermometers (LPRTs) are the sensor system of choice in RTP tools. They can be calibrated against blackbodies with an uncertainty (k=1) less than 0.3 C. In an RTP tool, however, account must be made for wafer emissivity and wafer

The Rotational Spectra Structure, Internal Dynamics and Electric Dipole Moment of Argon-Ketene Van Der Walls Complex

June 1, 2001

Author(s)

C W. Gillies, J Z. Gillies, S J. Amadon, R D. Suenram, Francis J. Lovas, H Warner, R Malloy

Pulsed-beam Fourier transform microwave spectroscopy was used to observe and assign the rotational spectra of the argon-ketene van der Waals complex. Tunneling of the hydrogen or deuterium atoms splits the a- and b-type rotational transitions of H 2CCO-Ar