SIMBAD references

2010MNRAS.404.1321W - Mon. Not. R. Astron. Soc., 404, 1321-1348 (2010/May-3)

Interstellar Ti II in the Milky way and Magellanic clouds.


Abstract (from CDS):

We discuss several sets of TIII absorption-line data, which probe a variety of interstellar environments in our Galaxy and in the Magellanic Clouds. Comparisons of high-resolution [full width at half-maximum (FWHM) ∼ 1.3-1.5 km/s] TIII spectra of Galactic targets with corresponding high-resolution spectra of NaI, KI and CaII reveal both similarities and differences in the detailed structure of the absorption-line profiles - reflecting component-to-component differences in the ionization and depletion behaviour of those species. Moderate-resolution (FWHM ∼ 3.4-4.5 km/s) spectra of more heavily reddened Galactic stars provide more extensive information on the titanium depletion in colder, denser clouds - where more than 99.9 per cent of the TI may be in the dust phase. Moderate-resolution (FWHM ∼ 4.5-8.7 km/s) spectra of stars in the Magellanic Clouds suggest that the titanium depletion is generally much less severe in the Large and Small Magellanic Clouds than in our Galaxy [for a given N(Htot), E(B - V), or molecular fraction f(H2)] - providing additional evidence for differences in depletion patterns in those two lower-metallicity galaxies. We briefly discuss possible implications of these results for the interpretation of gas-phase abundances in quasi-stellar object absorption-line systems and of variations in the D/H ratio in the local Galactic interstellar medium.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): ISM: abundances - ISM: lines and bands - galaxies: ISM - Magellanic Clouds

VizieR on-line data: <Available at CDS (J/MNRAS/404/1321): tablea1.dat tablea2.dat notes.dat tablea3.dat refs.dat>

Simbad objects: 464

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