Intermediate resolution spectroscopy of the 3.53-micron dust feature in Elias 1

Details Intermediate resolution spectroscopy of the 3.53-micron dust feature in Elias 1 Intermediate resolution spectroscopy of the 3.53-micron dust feature in Elias 1

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211p..29w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Nov. 1, 1984, p. 29P-31P. Sponsorship: Science and

Astronomy and Astrophysics

Astronomy

19

A Stars, Abundance, Cosmic Dust, Pre-Main Sequence Stars, Stellar Spectrophotometry, Emission Spectra, Formaldehyde, Line Shape, Spectral Resolution, Stellar Evolution, Wavelengths

Scientific paper

Spectroscopy at a resolution of 0.01 micron is presented for the pre-main-sequence Ae star Elias no. 1 in a spectral range which includes the unidentified emission features at 3.28, 3.43 and 3.53 microns. The central wavelengths and profile shapes of the 3.43- and 3.53-micron features in Elias 1 and in the prototype object HD 97048 are identical to within observational errors. The marked asymmetry of the 3.53-micron feature supports an identification with formaldehyde in cold grain mantles.

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