The Dust-to-Gas Ratio in the Small Magellanic Cloud Tail

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dc.creatorGordon, K. D.
dc.creatorBot, C.
dc.creatorMuller, E.
dc.creatorMisselt, K. A.
dc.creatorBolatto, A.
dc.creatorBernard, J. -P.
dc.creatorReach, W.
dc.creatorEngelbracht, C. W.
dc.creatorBabler, B.
dc.creatorBracker, S.
dc.creatorBlock, M.
dc.creatorClayton, G. C.
dc.creatorHora, J.
dc.creatorIndebetouw, R.
dc.creatorIsrael, F. P.
dc.creatorLi, A.
dc.creatorMadden, S.
dc.creatorMeade, M.
dc.creatorMeixner, M.
dc.creatorSewilo, M.
dc.creatorShiao, B.
dc.creatorSmith, L. J.
dc.creatorvan Loon, J. Th.
dc.creatorWhitney, B. A.
dc.date2008-11-17
dc.date.accessioned2026-07-07T12:16:02Z
dc.date.available2026-07-07T12:16:02Z
dc.descriptionThe Tail region of the Small Magellanic Cloud (SMC) was imaged using the MIPS instrument on the Spitzer Space Telescope as part of the SAGE-SMC Spitzer Legacy. Diffuse infrared emission from dust was detected in all the MIPS bands. The Tail gas-to-dust ratio was measured to be 1200 +/- 350 using the MIPS observations combined with existing IRAS and HI observations. This gas-to-dust ratio is higher than the expected 500-800 from the known Tail metallicity indicating possible destruction of dust grains. Two cluster regions in the Tail were resolved into multiple sources in the MIPS observations and local gas-to-dust ratios were measured to be ~440 and ~250 suggests dust formation and/or significant amounts of ionized gas in these regions. These results support the interpretation that the SMC Tail is a tidal tail recently stripped from the SMC that includes gas, dust, and young stars.
dc.description6 pages, 3 figures, ApJ Letters, in press, (version with full resolution figures at http://www.stsci.edu/~kgordon/papers/PS_files/sage-smc_taildust_v1.62.pdf)
dc.identifierhttps://arxiv.org/abs/0811.2789
dc.identifierhttp://arxiv.org/abs/0811.2789
dc.identifierAstrophys.J.690:L76-L80,2008
dc.identifierdoi:10.1088/0004-637X/690/1/L76
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211674
dc.subjectAstrophysics
dc.titleThe Dust-to-Gas Ratio in the Small Magellanic Cloud Tail
dc.typetext

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