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Solid-phase C_60 in the peculiar binary XX Oph?
A. Evans, J. Th. van Loon, C. E. Woodward +8
We present infrared spectra of the binary XX Oph obtained with the Infrared Spectrograph on the Spitzer Space Telescope. The data show some evidence for the presence of solid C_60…
The Helium Abundance in the Ejecta of U Scorpii
M. P. Maxwell, M. T. Rushton, M. J. Darnley +7
U Scorpii is a recurrent nova which has been observed in outburst on 10 occasions, most recently in 2010. We present near-infrared and optical spectroscopy of the 2010 outburst of…
Spitzer spectra of evolved stars in omega Centauri and their low-metallicity dust production
Iain McDonald, Jacco Th. van Loon, Gregory C. Sloan +7
Dust production is explored around 14 metal-poor ([Fe/H] = -1.91 to -0.98) giant stars in the Galactic globular cluster omega Centauri using new Spitzer IRS spectra. This sample in…