A Multiwavelength Study of the Close Environment of HD 34078

A Multiwavelength Study of the Close Environment of HD 34078

We present super(12)CO(2-1) emission line observations of the region surrounding HD 34078, together with new optical and FUSE spectra of this runaway star. CO(2-1) emission peaks close to the star position and correlates well with IR thermal dust emission. Our follow-up of CH and CH super(+) optical...

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Hauptverfasser: Boisse, P, Rollinde, E, Hebrard, G, Hily-Blant, P, Pety, J, Federman, SR, Sheffer, Y, Andersson, B G, Marmin, G, des Forets, GP, Roueff, E
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creator Boisse, P
Rollinde, E
Hebrard, G
Hily-Blant, P
Pety, J
Federman, SR
Sheffer, Y
Andersson, B G
Marmin, G
des Forets, GP
Roueff, E
description We present super(12)CO(2-1) emission line observations of the region surrounding HD 34078, together with new optical and FUSE spectra of this runaway star. CO(2-1) emission peaks close to the star position and correlates well with IR thermal dust emission. Our follow-up of CH and CH super(+) optical absorption lines confirms the reality of marked time variations while FUSE spectra indicate no such changes for H sub(2). These results are consistent with a picture in which all absorption lines in HD 34078's spectrum originate from material located close to the star, in a dense inhomogeneous shell formed at the stellar wind/ambient cloud interface where CH and CH super(+) are overabundant.
doi_str_mv 10.1063/1.3154026
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title A Multiwavelength Study of the Close Environment of HD 34078
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