Detection of deuterium Balmer lines in the Orion Nebula

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dc.creatorHebrard, G.
dc.creatorPequignot, D.
dc.creatorVidal-Madjar, A.
dc.creatorWalsh, J. R.
dc.creatorFerlet, R.
dc.date2000-02-07
dc.date.accessioned2026-07-07T01:52:09Z
dc.date.available2026-07-07T01:52:09Z
dc.descriptionThe detection and first identification of the deuterium Balmer emission lines, D-alpha and D-beta, in the core of the Orion Nebula is reported. Observations were conducted at the 3.6m Canada-France-Hawaii Telescope, using the Echelle spectrograph Gecko. These lines are very narrow and have identical 11 km/s velocity shifts with respect to H-alpha and H-beta. They are probably excited by UV continuum fluorescence from the Lyman (DI) lines and arise from the interface between the HII region and the molecular cloud.
dc.description4 pages, latex, 1 figure, 1 table, accepted for publication in Astronomy & Astrophysics, Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0002141
dc.identifierhttp://arxiv.org/abs/astro-ph/0002141
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/530
dc.subjectAstrophysics
dc.titleDetection of deuterium Balmer lines in the Orion Nebula
dc.typetext

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