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2024RNAAS...8..304H - Research Notes of the AAS, 8, 304 (2024/December-0)

Discovery of Raman-scattered C II Lines in V366 Carinae with GHOST/Gemini South.

HEO J.-E. and JEONG M.

Abstract (from CDS):

We report the detection of Raman-scattered C II lines at 7023 and 7054 Å in the symbiotic star V366 Carinae using Gemini High-resolution Optical SpecTrograph (GHOST) at Gemini South. These faint features, originating from the C II doublet at λλ1036 and 1037, are rare and have been detected in only two other symbiotic stars: V1016 Cygni and RR Telescopii. Our findings showcase the exceptional sensitivity of GHOST to detect subtle spectral features and open the door to comparative studies of Raman-scattered C II features across these systems.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Symbiotic binary stars - High resolution spectroscopy - Stellar spectral lines

Simbad objects: 4

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