THE OPTICAL SPECTRUM OF SrOH RE-VISITED: ZEEMAN EFFECT, HIGH-RESOLUTION SPECTROSCOPY AND FRANCK-CONDON FACTORS.

2015 ◽  
Author(s):  
Trung Nguyen ◽  
John Doyle ◽  
Ivan Kozyryev ◽  
Timothy Steimle ◽  
Damian Kokkin
Keyword(s):  
High Resolution ◽  
Optical Spectrum ◽  
Zeeman Effect ◽  
High Resolution Spectroscopy ◽  
Condon Factors ◽  
Franck Condon

Sub‐Doppler high‐resolution spectroscopy and the Zeeman effect of CS2 in the near ultraviolet

1994 ◽  
Vol 100 (5) ◽  
pp. 3394-3406 ◽  
Author(s):  
Kiyoshi Nishizawa ◽  
Shunji Kubo ◽  
Atsushi Doi ◽  
Hajime Katô
Keyword(s):  
High Resolution ◽  
Zeeman Effect ◽  
High Resolution Spectroscopy ◽  
Near Ultraviolet

Investigations of metal ion – rare gas pairs by optical spectroscopy: High resolution analysis of the A2Πr–X2Σ+ system of BeAr+

1976 ◽  
Vol 54 (15) ◽  
pp. 1535-1544 ◽  
Author(s):  
K. V. Subbaram ◽  
J. A. Coxon ◽  
W. E. Jones
Keyword(s):  
High Resolution ◽  
Metal Ion ◽  
Valence Electron ◽  
Rare Gas ◽  
Electron Systems ◽  
Molecular Constants ◽  
High Resolution Analysis ◽  
Condon Factors ◽  
Resolution Analysis ◽  
Franck Condon

Rotational analyses have been performed for the 1–0, 0–0, 0–1, 0–2, 0–3, and 0–4 bands of the A2Πr–X2Σ+ system of BeAr+ near 4000 Å. Molecular constants have been obtained by direct least squares fits of the line frequencies to model Hamiltonians. The Λ-type doubling in the A state is compared with that found for other nine valence-electron systems. RKR curves are calculated for both states, and provide an estimate of Dc″ = 4100 ± 200 cm−1 for the X2Σ+ state. Franck–Condon factors and r-centroids for the transition are also reported.

Zeeman effect experiment with high-resolution spectroscopy for advanced physics laboratory

2017 ◽  
Vol 85 (8) ◽  
pp. 565-574 ◽  
Author(s):  
Andrew S. Taylor ◽  
Alexander R. Hyde ◽  
Oleg V. Batishchev
Keyword(s):  
High Resolution ◽  
Zeeman Effect ◽  
High Resolution Spectroscopy ◽  
Physics Laboratory ◽  
Effect Experiment

High-resolution emission spectra of MgH and MgD in the 600 to 850 nm wavelength region

1978 ◽  
Vol 56 (6) ◽  
pp. 767-779 ◽  
Author(s):  
Walter J. Balfour ◽  
Bo Lindgren
Keyword(s):  
High Resolution ◽  
Excellent Agreement ◽  
Dissociation Energy ◽  
Ground State ◽  
Wavelength Region ◽  
Emission Spectra ◽  
Condon Factors ◽  
Reported Data ◽  
Dc Arc ◽  
Franck Condon

The emission spectra from a magnesium dc arc in hydrogen or deuterium have been photographed at high resolution from 600 to 850 nm. Thirteen new bands of MgH and 18 of MgD in the B′2Σ+–X2Σ+ system have been identified and complete rotational analyses have been performed. Term values have been obtained for all bound ground state rotational levels of MgH for ν = 4–9 and MgD for ν = 6–13 and limiting curves of dissociation have been used to determine the dissociation energy of MgH. The experimental value, D00″(MgH) = 1.27 ± 0.03 eV is in excellent agreement with theory. The ground state RKR potential curve and Franck–Condon factors for the B′–X system are reported. Data on the isotopic molecules 25MgH, 26MgH, 25MgD, and 26MgD have also been obtained.

scholarly journals Broadband transmission spectroscopy of HD 209458b with ESPRESSO: evidence for Na, TiO, or both

2020 ◽  
Vol 644 ◽  
pp. A51
Author(s):  
N. C. Santos ◽  
E. Cristo ◽  
O. Demangeon ◽  
M. Oshagh ◽  
R. Allart ◽  
...  
Keyword(s):  
High Resolution ◽  
Transmission Spectrum ◽  
Optical Spectrum ◽  
High Resolution Spectroscopy ◽  
Transmission Spectra ◽  
Full Dataset ◽  
Synthetic Spectra ◽  
Observational Errors ◽  
The One

Context. The detection and characterization of exoplanet atmospheres is currently one of the main drivers pushing the development of new observing facilities. In this context, high-resolution spectrographs are proving their potential and showing that high-resolution spectroscopy will be paramount in this field. Aims. We aim to make use of ESPRESSO high-resolution spectra, which cover two transits of HD 209458b, to probe the broadband transmission optical spectrum of the planet. Methods. We applied the chromatic Rossiter–McLaughin method to derive the transmission spectrum of HD 209458b. We compared the results with previous HST observations and with synthetic spectra. Results. We recover a transmission spectrum of HD 209458b similar to the one obtained with HST data. The models suggest that the observed signal can be explained by only Na, only TiO, or both Na and TiO, even though none is fully capable of explaining our observed transmission spectrum. Extra absorbers may be needed to explain the full dataset, though modeling approximations and observational errors can also be responsible for the observed mismatch. Conclusions. Using the chromatic Rossiter–McLaughlin technique, ESPRESSO is able to provide broadband transmission spectra of exoplanets from the ground, in conjunction with space-based facilities, opening good perspectives for similar studies of other planets.

scholarly journals Sub-Doppler High-Resolution Spectroscopy of 15V Band of CS2 and the Zeeman Effect

1995 ◽  
Vol 15 (2-4) ◽  
pp. 131-143 ◽  
Author(s):  
Atsushi Doi ◽  
Masaya Ohtsuka ◽  
Kiyoshi Nishizawa ◽  
Masaaki Baba ◽  
Hajime Katô
Keyword(s):  
High Resolution ◽  
Zeeman Effect ◽  
Orbit Interaction ◽  
High Resolution Spectroscopy ◽  
Spin Orbit ◽  
Excitation Spectra ◽  
Main Band ◽  
Spin Orbit Interaction ◽  
Vibrational Levels ◽  
Almost All

Excitation spectra and the Zeeman spectra of CS2 in the region of 31320-31445 cm-1were measured with sub-Doppler resolution. Observed rotational lines were classified to 14 series of lines (vibronic bands) and were named by the wavenumbers of their band origins. The 31344.9 band is the strongest one and is assigned as the main band of the V1B20v20(K=0) – X1∑g+ 0000 transition. Most of the extra bands may be allowed by the vibronic interaction between the V1B20v20(K=0) level and singlet levels, which are mostly high vibrational levels of the 1A1(X1∑g+) state. The Zeeman splittings are observed for several lines in almost all bands. These may be originating from the spin-orbit interaction between the rotational levels, which have accidentally nearly the same energy, of the 1A1(X1∑g+) state and the 3A2 (3Δu ) or/and 3B2 (3Δu) state.

Structure and analysis of the B–X band system of GaO

1979 ◽  
Vol 57 (3) ◽  
pp. 496-504 ◽  
Author(s):  
B. R. Yadav ◽  
S. B. Rai ◽  
D. K. Rai
Keyword(s):  
High Resolution ◽  
Potential Energy ◽  
Electronic Spectrum ◽  
Band System ◽  
Rotational Structure ◽  
Potential Energy Curves ◽  
Molecular Constants ◽  
X Band ◽  
Condon Factors ◽  
Franck Condon

The electronic spectrum of the GaO molecule has been re-investigated in the region 3600–4200 Å The use of high resolution and dispersion permitted clear resolution of the rotational structure and the formation of head of heads in Δν = + 1 and + 2 sequences is clearly visible. The rotational analyses of the (0,0) and the (1,0) bands have been performed and more reliable molecular constants have been obtained. Intensity anomalies in the bands have been explained on the basis of the true potential energy curves and the associated Franck–Condon factors.

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