The far-infrared size of IRC +10216

Details The far-infrared size of IRC +10216 The far-infrared size of IRC +10216

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237l..39f&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 237, Apr. 15, 1980, p. L39-L42.

Astronomy and Astrophysics

Astronomy

34

Carbon Stars, Far Infrared Radiation, Infrared Astronomy, Stellar Envelopes, Balloon-Borne Instruments, Infrared Imagery, Stellar Radiation

Scientific paper

IRC +10216, a carbon star undergoing extensive mass loss, has been observed with a broad-band far-infrared (40-250 micron) photometer on the CFA/UA 102 cm balloon-borne telescope. From repeated scans, the deconvolved FWHM size of IRC +10216 was determined to be 0.92 arcmin plus or minus 0.15 arcmin. Based on this size, models for the density distribution of the dust in the surrounding cloud indicate that there is more dust at large radii than would be predicted by a 1/r-squared density distribution and that the mass-loss rate of the central source was twice its current value only 2000 years ago.

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