نتایج جستجو برای: pressure broadening

تعداد نتایج: 418582  

Journal: :Journal of Quantitative Spectroscopy and Radiative Transfer 2017

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Journal: :The Journal of Chemical Physics 1989

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2011
Teruyuki Hirano Yasushi Suto Joshua N. Winn Atsushi Taruya Norio Narita Simon Albrecht

We present an improved formula for the anomalous radial velocity of the star during planetary transits due to the Rossiter-McLaughlin (RM) effect. The improvement comes from a more realistic description of the stellar absorption line profiles, taking into account stellar rotation, macroturbulence, thermal broadening, pressure broadening, and instrumental broadening. Although the formula is deri...

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Journal: :Acta Physica Polonica A 2002

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2013
E. Lisicki. A. Bielski J. Szudy J. Wolnikowski

Results of a series of experiments on pressure effects caused by various foreign gases on the 535.0 nm TI fluorescence line emitted due to the photodissociation of Til-molecules are summarized and some aspects of the Doppler and pressure broadening of this line are discussed. The impact broadeningand shift-cross sections are determined for two sets of mean relative velocities f of the emitter-p...

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Journal: :Chemical physics letters 2012
Chiheb Bahrini Olivier Herbinet Pierre-Alexandre Glaude Coralie Schoemaecker Christa Fittschen Frédérique Battin-Leclerc

We present the coupling of a jet-stirred reactor to detection by cw-CRDS in the near infrared and first results obtained during the oxidation of methane. The mixture is rapidly expanded from the jet-stirred reactor into a 80 cm-long cw-CRDS cell maintained at a the pressure around 1.33 kPa, thus freezing the reaction and decreasing pressure broadening of the absorption lines. Some stable specie...

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Journal: :Applied Physics Letters 2019

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Journal: :Physical review letters 2008
B Mihailova R J Angel A-M Welsch J Zhao J Engel C Paulmann M Gospodinov H Ahsbahs R Stosch B Güttler U Bismayer

We report pressure-induced structural changes in PbSc(0.5)Ta(0.5)O3 studied by single-crystal x-ray diffraction and Raman scattering. The appearance of a soft mode, a change in the volume compressibility, broadening of the diffraction peaks, and suppression of the x-ray diffuse scattering show that a phase transition occurs near pc approximately 1.9 GPa. The critical pressure is associated with...

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Journal: :Journal of Geophysical Research 2010

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Journal: :Nature Astronomy 2019

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