Spitzer spectroscopy of carbon stars in the Small Magellanic Cloud
Lagadec, Eric; Zijlstra, Albert A; Sloan, G C; Matsuura, Mikako; Wood, Peter R; van Loon, Jacco Th; Harris, G J; Blommaert, J A D L; Hony, S; Groenewegen, M A T; Feast, M.W.; Whitelock, Patricia A; Menzies, J W; Cioni, M-R L
We present Spitzer Space Telescope spectroscopic observations of 14 carbon-rich asymptotic giant branch (AGB) stars in the Small Magellanic Cloud (SMC). SiC dust is seen in most of the carbon-rich stars but it is weak compared to Large Magellanic Cloud (LMC) stars. The SiC feature is strong only for stars with significant dust excess, opposite to what is observed for Galactic stars. We argue that in the SMC, SiC forms at lower temperature than graphite dust, whereas in the Galaxy SiC and...[Show more]
|Collections||ANU Research Publications|
|Source:||Monthly Notices of the Royal Astronomical Society|
|01_Lagadec_Spitzer_spectroscopy_of_carbon_2007.pdf||936.7 kB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.