Detection of CH⁺, CH and H₂ Molecules in the Young Planetary Nebula IC 4997

We have detected CH⁺ and CH molecular absorption lines from the youngcompact planetary nebula IC 4997 from high resolution optical spectra. A high-resolution infra-red (H and K bands) spectrum provides detection of H₂ emission lines among many other lines. The H₂ lines provide an excitation temperat...

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Veröffentlicht in:	Publications of the Astronomical Society of the Pacific 2020-07, Vol.132 (1013), p.1-13
Hauptverfasser:	Rao, N. Kameswara, Lambert, David L., Reddy, Arumalla B. S., García-Hernández, D. A., Manchado, Arturo, Díaz-Luis, J. J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Emission lines Stars and Stellar Evolution
Online-Zugang:	Volltext
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