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1977•Monthly Notices of the Royal Astronomical SocietyOpen access

The spectrum of the T Tauri star Lk H 120

Michael V. Penston, P. M. Keavey

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Abstract

Spectra show a rich emission line spectrum including permitted lines of neutral and once ionized iron-peak elements. P Cygni emission from the Balmer lines and calcium K is also seen – the absence of H emission is explained by neutral iron absorption and results in flourescent emission. The simple physical and geometrical model discussed in the Conclusion seems capable of qualitatively explaining all the data.

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Spectra show a rich emission line spectrum including permitted lines of neutral and once ionized iron-peak elements. P Cygni emission from the Balmer lines and calcium K is also seen – the absence of H emission is explained by neutral iron absorption and results in flourescent emission. The simple physical and geometrical model discussed in the Conclusion seems capable of qualitatively explaining all the data.

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Available abstract

Spectra show a rich emission line spectrum including permitted lines of neutral and once ionized iron-peak elements. P Cygni emission from the Balmer lines and calcium K is also seen – the absence of H emission is explained by neutral iron absorption and results in flourescent emission. The simple physical and geometrical model discussed in the Conclusion seems capable of qualitatively explaining all the data.

Key concepts: Balmer series, Physics, Emission spectrum, Astrophysics, T Tauri star, Spectral line, Ionization, Line (geometry)

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