Circumstellar shells resolved in the IRAS survey data. I - Data processing procedure, results, and confidence tests

Details Circumstellar shells resolved in the IRAS survey data. I - Data processing procedure, results, and confidence tests Circumstellar shells resolved in the IRAS survey data. I - Data processing procedure, results, and confidence tests

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apjs...86..517y&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 86, no. 2, p. 517-540.

Astronomy and Astrophysics

Astronomy

71

Infrared Astronomy Satellite, Late Stars, Planetary Nebulae, Spatial Resolution, Stellar Envelopes, Stellar Mass Ejection, Data Processing, Infrared Stars

Scientific paper

We have examined the IRAS 60 and 100 micron survey data covering 512 evolved stars and young planetary nebulae for evidence of spatially resolved structure. A simple model, consisting of a central unresolved source surrounded by a resolved isothermal shell, was fitted to the data for each star. Seventy-six stars were found to be resolved in the 60 micron data. Tests have been performed to verify that the extended structure seen is not an artifact of the data-processing algorithm.

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