Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat..33870129w&link_type=abstract
VizieR On-line Data Catalog: J/A+A/387/129. Originally published in: 2002A&A...387..129W
Physics
Stars: Late-Type, Stars: S, Infrared Sources, Photometry: Infrared
Scientific paper
Photometric observations in the near infrared for 161 S stars, including 18 Tc-rich (intrinsic) stars, 19 Tc-deficient (extrinsic) ones and 124 candidates for Tc-deficient S stars, are presented in this paper. Based on some further investigations into the infrared properties of both Tc-rich and Tc-deficient S stars, 104 candidates are identified as very likely Tc-deficient S stars. The large number of infrared-selected Tc-deficient S stars provides a convenient way to study the physical properties and the evolutionary status of this species of S stars. (3 data files).
Chen Pei-Sheng
Wang Xiang-Hui
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