IRAS low resolution spectra with β Pictoris-type silicate emission.

Details IRAS low resolution spectra with β Pictoris-type silicate emission. IRAS low resolution spectra with β Pictoris-type silicate emission.

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...295..767f&link_type=abstract

Astronomy and Astrophysics, v.295, p.767

Astronomy and Astrophysics

Astrophysics

16

Circumstellar Matter, Dust, Extinction, Infrared: Stars, Stars: Giant, Stars: Individual: {Beta} Pic

Scientific paper

We present a list of 88 IRAS low resolution spectra that exhibit 10μm silicate emission features similar to the one in the spectrum of β Pictoris. Unlike the majority of LRS silicate emission spectra, which show a relatively narrow, single peak at ~10μm, the ones in the present list show a wide feature, with two peaks at 9 and 11μm. The spectral characteristics indicate the emission originates from oxygen-rich circumstellar dust. Many of the sources have no known associations; those that do are typically low mass asymptotic giant branch Miras or massive supergiants. The sources show a preferential distribution towards the galactic center.

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