SIMBAD references

1994A&A...285..716H - Astronomy and Astrophysics, volume 285, 716-722 (1994/5-3)

High-resolution spectroscopy of two young stars between the Magellanic Clouds.

HAMBLY N.C., DUFTON P.L., KEENAN F.P., ROLLESTON W.R.J., HOWARTH I.D. and IRWIN M.J.

Abstract (from CDS):

High-resolution echelle spectra of one main sequence B-type star and one B-type supergiant in the Bridge between the Magellanic Clouds have been obtained using the 3.9-m Anglo-Australian Telescope. These spectra have been analyzed in conjunction with IUE low-resolution observations by using ATLAS9 LTE model atmosphere techniques, to derive the stellar atmospheric parameters and photospheric chemical compositions; the latter should reflect that of the current interstellar medium within the Bridge. From a differential analysis performed relative to the Galactic B-type stars τ Sco and 67 Oph, the stars appear to have a mild helium deficiency of 0.1-0.2 dex, and a general heavy element depletion of at least -0.5 dex for one star, and as much as -1.0 dex for the other. These chemical compositions thus reflect those of SMC rather than LMC stars while the evolutionary status of these objects implies significant star formation is currently underway in the region.

Abstract Copyright:

Journal keyword(s): galaxies: Magellanic Clouds - stars: abundances - stars: early-type - galaxies: abundances

Status at CDS:  

Simbad objects: 7

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