Infrared photometry of S stars

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1981 English Publisher:Springer Science and Business Media LLCJournal:Astrophysics, volume 16, pages 386-390 (issn: 0571-7132, eissn: 1573-8191,

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Authors: A. A. Akopyan; V. V. Kir'yan; Yu. K. Melik-Alaverdyan; G. M. Tovmasyan;

doi: 10.1007/bf01005519

Infrared photometry of S stars

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Abstract

Results are given of observations of 13 S stars in Stephenson's catalog (1976) in the range 0.98-2.39 microns. Observations were made with a 2.6-m reflecting telescope using a PbS detector cooled by carbon dioxide. An infrared excess at 1.75 microns is found for some of the stars, and absorption at 2.39 microns is found for all of them.

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