Molecular beam optical zeeman spectroscopy of vanadium monoxide, VOa

Nguyen, Trung

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https://hdl.handle.net/2142/91396 Copy

Description

Title

Molecular beam optical zeeman spectroscopy of vanadium monoxide, VOa

Author(s)

Nguyen, Trung

Contributor(s)

• Steimle, Timothy
• Zhang, Ruohan

Issue Date

2016-06-22

Keyword(s)

(Hyper)fine structure, tunneling

Abstract

Like almost all astronomical studies, exoplanet investigations are observational endeavors that rely primarily on remote spectroscopic sensing to infer the physical properties of planets. Most exoplanet related information is inferred from to temporal variation of luminosity of the parent star. An effective method of monitoring this variation is via Magnetic Doppler Imaging (MDI)\footnote{O. Kochukhov, N. Rusomarov, J. A. Valenti, H. C. Stempels, F. Snik, M. Rodenhuis, N. Piskunov, V. Makaganiuk, C. U. Keller and C. M. Johns-Krull, Astron. Astrophys. 574 (Pt. 2), A79/71-A79/12 (2015).}, which uses optical polarimetry\footnote{S. V. Berdyugina, Astron. Soc. Pac. Conf. Ser. 437 (Solar Polarization 6), 219-235 (2011).} of paramagnetic molecules or atoms. One promising paramagnetic stellar absorption is the near infrared spectrum of VO\footnote{S. V. Berdyugina, P. A. Braun, D. M. Fluri and S. K. Solanki, Astron. Astrophys. 444 (3), 947-960 (2005).}. With this in mind, we have begun a project to record and analyze the field-free and Zeeman spectrum of the band. A cold (approx. 20 K) beam of VO was probed with a single frequency laser and detected using laser induced fluorescence. The determined spectral parameters will be discussed and compared to those extracted from the analysis of a hot spectrum\footnote{A. S. C. Cheung, P. G. Hajigeorgiou, G. Huang, S. Z. Huang and A. J. Merer, J. Mol. Spectrosc. 163 (2), 443-458 (1994).}.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

En

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http://hdl.handle.net/2142/91396

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Copyright 2016 by the authors

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