The infrared excess of Alpha Lyrae

Details The infrared excess of Alpha Lyrae The infrared excess of Alpha Lyrae

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...161l...9a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 161, no. 1, June 1986, p. L9-L11. Research supported by the Department of Spac

Astronomy and Astrophysics

Astronomy

4

A Stars, Infrared Stars, Stellar Envelopes, Stellar Radiation, Cosmic Dust, Far Infrared Radiation, Infrared Absorption, Infrared Astronomy Satellite, Particle Size Distribution, Silicates, Stellar Models

Scientific paper

A simple model is presented to explain IRAS and KAO far-infrared data of Alpha Lyrae in the 12-193 micron region in terms of dust grains of 10-micron size and temperatures of 130 + or - 15 and 40 + or - 5 K. It is suggested that silicates are constituents of the dust envelope, and that the far-IR flux varies as lambda exp(-beta), with beta = 3.0-3.8, in contrast with the usual indices considered. The results support the interpretation of Alpha Lyrae's far-IR excess as emission from a circumstellar shell of large size grains, though the model will not support grains larger than 10 microns size.

Affiliated with

Also associated with

No associations

Rating

The infrared excess of Alpha Lyrae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The infrared excess of Alpha Lyrae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The infrared excess of Alpha Lyrae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1829518