Show simple item record

dc.contributor.authorOudmaijer, R.D.
dc.contributor.authorBusfield, G.
dc.contributor.authorDrew, J.E.
dc.date.accessioned2008-10-07T07:55:21Z
dc.date.available2008-10-07T07:55:21Z
dc.date.issued1997
dc.identifier.citationOudmaijer , R D , Busfield , G & Drew , J E 1997 , ' Diffuse interstellar bands in the spectra of massive young stellar objects ' , Monthly Notices of the Royal Astronomical Society , vol. 291 , no. 4 , pp. 797-804 .
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 153743
dc.identifier.otherPURE UUID: ba3e40a2-58fe-4893-8082-83394ee9cc8d
dc.identifier.otherdspace: 2299/2432
dc.identifier.otherScopus: 0001065914
dc.identifier.urihttp://hdl.handle.net/2299/2432
dc.descriptionCopyright Blackwell Publishing
dc.description.abstractWe have compared the B−V colour excess, E(B–V), obtained for a sample of five optically visible massive YSOs both from diffuse interstellar bands (DIBs) in their spectra and from their optical continuum slopes. Our targets are HD 200775, BD+40o4124, MWC 1080, MWC 297 and MWC 349A. First, E(B–V) towards each of the targets is derived by dereddening the observed continua to match those of B-type standard stars. A survey of DIBs in the spectra of the massive YSOs, and a control field star, then reveals that the DIBs are significantly weaker in the former than would be expected based on the total E(B–V) values. This result is strengthened by the finding that the DIBs in the control field star, HD 154445, have on average the strength expected from its continuum E(B–V). A rough estimate of the foreground reddening of intervening diffuse interstellar medium shows it to be smaller than the DIB- E(B–V), implying that at least part of the DIB carriers are formed within the parental molecular clouds in which the YSOs are embedded. The formation efficiency of the DIBs varies strongly however from cloud to cloud. The DIB- E(B–V) compares favourably with the total E(B–V) towards BD+40o4124, but is almost negligible in the line of sight towards MWC 297. Despite this general, but not unexpected, deficit we provide evidence that the DIB at 5849°A is a good tracer of total extinction in these lines of sight.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectHerbig AE/BE stars
dc.subjectmolecular clouds
dc.titleDiffuse interstellar bands in the spectra of massive young stellar objectsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record