Estimation of the dust mass-loss rates from AGB stars in the Fornax and Sagittarius dwarf Spheroidal galaxies

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dc.creatorLagadec, Eric
dc.creatorZijlstra, Albert A.
dc.creatorMatsuura, Mikako
dc.creatorWhitelock, Patricia A.
dc.creatorvan Loon, Jacco Th.
dc.date2006-11-02
dc.date.accessioned2026-07-07T07:30:38Z
dc.date.available2026-07-07T07:30:38Z
dc.descriptionTo study the effect of metallicity on the mass-loss of AGB stars, we have conducted mid-infrared photometric measurements of AGB stars in the Sagittarius and Fornax Dwarf Spheroidal Galaxies ([Fe/H]=-1.1 and -1.3) with the 10-micron camera of VISIR at the VLT. These observations combined with previous near-infrared photometric measurements allow us to estimate mass-loss rates in these galaxies. We show here that the observed AGB display dust-driven mass-loss. Dust mass-loss rate are found to be in the range 0.2$\times10^{-10}-1.3\times10^{-8}$ M$_{\odot}$yr$^{-1}$ for the observed AGB stars in SgrD and around 5$\times10^{-11}$ M$_{\odot}$yr$^{-1}$ for the observed star in Fornax.
dc.description5 pages, 1 figures, To appear in ASP conf Ser, "Why Galaxies Care About AGB Stars"
dc.identifierhttps://arxiv.org/abs/astro-ph/0611073
dc.identifierhttp://arxiv.org/abs/astro-ph/0611073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118474
dc.subjectAstrophysics
dc.titleEstimation of the dust mass-loss rates from AGB stars in the Fornax and Sagittarius dwarf Spheroidal galaxies
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