Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608

Details Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608 Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5394w&link_type=abstract

HST Proposal ID #5394

Computer Science

Hst Proposal Id #5394 Interstellar Medium Absorption Lines

Scientific paper

We propose a detailed study of the interstellar (IS) abundances and depletions for one line of sight in the SMC - a nearby low metallicity, low dust-to-gas ratio system where stellar abundance data are also available. We will use the GHRS ECH-B to obtain absorption-line profiles of Zn II, Cr II, Si II, Fe II, Mn II, Mg II, and Al III, to determine both the detailed component structures and the relative abundances of those species in the various components. We will use the derived component structures to obtain similarly detailed abundances for S II, Ni II, and Al II from existing lower resolution short-wavelength IUE spectra (in which severe blending of components has to now prevented accurate abundance determinations). In addition to the intrinsic interest in obtaining detailed IS abundance and depletion data for an external galaxy quite different from our own, such data are needed for interpreting the abundance patterns found in QSO absorption-line systems. A number of the QSOALS examined to date seem to exhibit overall metallicities of about 0.1 x Solar, with some additional depletion of refractory elements. If the pattern of that depletion can be constrained, then the build-up of many elements can be traced, via the QSOALS, from redshifts 3.5 to 0.5 - with significant implications for the formation and evolution of galaxies.

Affiliated with

Also associated with

No associations

Rating

Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar Abundances in the SMC - Implications for QSO - Line Systems and for Chem EV of Universe-Cyc 4 Med Early Acq for 5608 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1255723