Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...310..700p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 310, Nov. 15, 1986, p. 700-709.
Astronomy and Astrophysics
Astrophysics
15
Interstellar Gas, Iron, Magellanic Clouds, Milky Way Galaxy, Absorption Spectra, Abundance, H Ii Regions, Line Spectra, Sodium, Stellar Spectra, Velocity Distribution
Scientific paper
The authors have extended previous interstellar searches for the coronal forbidden line [Fe X] λ6374.51 by obtaining echelle CCD spectra of two distant stars in the galactic halo and two stars in the 30 Doradus H II region of the Large Magellanic Cloud. No [Fe X] absorption was detected, with 3σ upper limits as low as 4 mÅ. The authors did detect the diffuse interstellar bands λλ6376.08, 6379.30 in the LMC; this is the first time these features have been observed outside our Galaxy. The Na I D doublet lines for the two stars in 30 Dor suggest the existence of a newly recognized shell, located in front of the H II region, and expanding with v = 28 km s-1 relative to the ambient medium.
Dodorico Sandro
Pettini Max
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