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Complex Organic Materials in the Circumstellar Disk of HR 4796A
ASTROPHYSICAL JOURNAL LETTERS, no. 2 (2008): L191-L194
摘要
We combine HST NICMOS imaging photometry of the HR 4796A disk at previously unobserved wavelengths between 1.71-2.22 mu m with reprocessed archival observations to produce a measure of the dust's scattering efficiency as a function of wavelength. The spectrum of the dust, synthesized from the seven photometric measures, is characterized b...更多
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