Theoretical study of the spectroscopy of ZrO

Abstract

view Abstract Citations (33) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Theoretical Study of the Spectroscopy of ZrO Langhoff, Stephen R. ; Bauschlicher, Charles W., Jr. Abstract The absorption bands of ZrO have been observed in stars, particularly S stars. Here, theoretical transition probabilities are presented for the dipole-allowed transitions between the six lowest singlet and triplet states of ZrO. The results should be sufficiently reliable to provide opacity data for use in modeling stellar atmospheres. The theoretical radiative lifetime for the e 3Pi state is less than the experimental value as measured by the decay of resonant fluorescence. However, the theoretical electronic transition moments for the gamma system and the B 1Pi - X 1Sigma(+) system are much smaller than those deduced from emission studies. The calculated lifetime for the C 1Sigma(+) state is in excellent agreement with the laser-induced fluorescence studies. The as yet unobserved E 1Phi - A 1Delta band system is found to be relatively strong. Publication: The Astrophysical Journal Pub Date: January 1990 DOI: 10.1086/168320 Bibcode: 1990ApJ...349..369L Keywords: Absorption Spectroscopy; Radiative Lifetime; Stellar Spectra; Transition Probabilities; Zirconium Oxides; Atmospheric Models; Laser Induced Fluorescence; Molecular Spectroscopy; S Stars; Spectral Bands; Stellar Atmospheres; Stellar Models; Vibrational Spectra; Astrophysics; MOLECULAR PROCESSES; TRANSITION PROBABILITIES full text sources ADS |