Results 61 to 70 of about 3,012,302 (181)

Unraveling Visible Spectra of S-type Stars: The f3Δ–a3Δ (α System) and e3Π–a3Δ (β System) Band Systems of ZrO

The Astrophysical Journal
ZrO has many low-lying states, and its spectra are essential for the characterization of S-type stars. A high-resolution emission spectrum recorded with a Fourier transform spectrometer at the National Solar Observatory is used for the analysis.
Manish Bhusal, Peter F Bernath, Jacques Liévin   +2 more
doaj   +1 more source

Fourier-transform spectroscopy based on the rotational Doppler effect

AIP Advances
We propose a new Fourier-transform spectroscopy technique based on the rotational Doppler effect. The technique offers an application for optical vortex frequency combs, where each frequency component carries a unique amount of orbital angular momentum ...
S. Larnimaa, M. Vainio
doaj   +1 more source

Coherent spin–rotational dynamics of oxygen superrotors

New Journal of Physics, 2014
We use state- and time-resolved coherent Raman spectroscopy to study the rotational dynamics of oxygen molecules in ultra-high rotational states.
Alexander A Milner, Aleksey Korobenko, Valery Milner   +2 more
doaj   +1 more source

Hyperfine-resolved rotational spectroscopy of HCNH+

The Journal of Chemical Physics
The rotational spectrum of the molecular ion HCNH+ is revisited using double-resonance spectroscopy in an ion trap apparatus, with six transitions measured between 74 and 445 GHz. Due to the cryogenic temperature of the trap, the hyperfine splittings caused by the 14N quadrupolar nucleus were resolved for transitions up to J = 4 ← 3, allowing for a ...
Weslley G. D. P. Silva, Luis Bonah, Philipp C. Schmid, Stephan Schlemmer, Oskar Asvany   +4 more
openaire   +3 more sources

A Pure Rotational Spectroscopic Study of Two Nearly-Equivalent Structures of Hexafluoroacetone Imine, (CF₃)C=NH

Molecules
Rotational spectra for hexafluoroacetone imine, the singly substituted 13C isotopologues, and the 15N isotopologue, have been recorded using both cavity and chirped pulse Fourier transform microwave spectrometers.
Daniel A. Obenchain, Beppo Hartwig, Daniel J. Frohman, G. S. Grubbs, B. E. Long, Wallace C. Pringle, Stewart E. Novick, S. A. Cooke   +7 more
doaj   +1 more source

Conformational Panorama of Cycloundecanone: A Rotational Spectroscopy Study. [PDF]

J Phys Chem A, 2022
Tsoi VWY, Burevschi E, Saxena S, Sanz ME.   +3 more
europepmc   +1 more source

Rotational Spectrum and Search for Lactonitrile toward Sgr B2(N)

The Astrophysical Journal
Laboratory experiments on interstellar ice analogs have demonstrated that ice mixtures containing acetaldehyde (CH _3 CHO) and hydrogen cyanide (HCN) in the presence of ammonia (NH _3 ), water (H _2 O), or an NH _3 /H _2 O mixture allow the formation of ...
A. Insausti, E. R. Alonso, L. Kolesniková, A. Belloche, I. León, S. Mato   +5 more
doaj   +1 more source

Rotational Spectroscopy and Tentative Interstellar Detection of 3-hydroxypropanal (HOCH2CH2CHO) in the G+0.693-0.027 Molecular Cloud

The Astrophysical Journal
We synthesized the astrochemically relevant molecule 3-hydroxypropanal (HOCH _2 CH _2 CHO) and subsequently measured and analyzed its rotational spectrum in several frequency regions ranging from 130 to 485 GHz.
Zachary T. P. Fried, Roman A. Motiyenko, Miguel Sanz-Novo, Lucie Kolesniková, Jean-Claude Guillemin, Laurent Margulès, Tereza Uhlíková, Arnaud Belloche, Jes K. Jørgensen, Martin S. Holdren, Ci Xue, Štěpán Urban, Izaskun Jiménez-Serra, Victor M. Rivilla, Brett A. McGuire   +14 more
doaj   +1 more source