Solid‐phase C60 in the peculiar binary XX Oph?

ABSTRACT 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 C60– the first detection of C60 in the solid phase – together with the well‐known ‘unidentified infrared’ emission f...

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Published in:Monthly notices of the Royal Astronomical Society. Letters 2012-03, Vol.421 (1), p.L92-L96
Main Authors: Evans, A., van Loon, J. Th, Woodward, C. E., Gehrz, R. D., Clayton, G. C., Helton, L. A., Rushton, M. T., Eyres, S. P. S., Krautter, J., Starrfield, S., Wagner, R. M.
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Language:English
Subjects:
astrochemistry
binaries: symbiotic
circumstellar matter
infrared: stars
stars: individual: XX Oph
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container_title Monthly notices of the Royal Astronomical Society. Letters
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creator Evans, A.
van Loon, J. Th
Woodward, C. E.
Gehrz, R. D.
Clayton, G. C.
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Rushton, M. T.
Eyres, S. P. S.
Krautter, J.
Starrfield, S.
Wagner, R. M.
description ABSTRACT 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 C60– the first detection of C60 in the solid phase – together with the well‐known ‘unidentified infrared’ emission features. We suggest that, in the case of XX Oph, the C60 is located close to the hot component, and that in general it is preferentially excited by stars having effective temperatures in the range 15 000–30 000 K. C60 may be common in circumstellar environments, but unnoticed in the absence of a suitable exciting source.
doi_str_mv 10.1111/j.1745-3933.2012.01213.x
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subjects astrochemistry
binaries: symbiotic
circumstellar matter
infrared: stars
stars: individual: XX Oph
title Solid‐phase C60 in the peculiar binary XX Oph?
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