2016/10/17 by Diego de la Fuente, D. de la Fuente, F. Najarro +6
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1610.05165
6 pages, 2 figures. To appear in the proceedings of the conference "The B[e] phenomenon: forty years of studies" held in Prague, June 2016. Updated version with minor corrections
openalex publication_date 2016/10/17 · arxiv created 2016/10/21 · arxiv updated 2016/10/24 · openalex created_date 2016/10/28 · openalex updated_date 2026/07/28
FS CMa stars are low-luminosity objects showing the B[e] phenomenon whose evolutionary origin is yet to be unraveled. Various binary-related hypotheses have been recently proposed, two of them involving the spiral-in evolution of the binary orbit. The latter occurs more often in dense stellar environments like young massive clusters (YMCs). Hence, a systematic study of FS CMa stars in YMCs would be crucial to find out how these objects are created. In YMCs, two FS CMa stars have been confirmed and three candidates have been found through a search method based on narrow-band photometry at Paschen-α and the neighboring continuum. We apply this method to archival data from the Paschen-α survey of the Galactic Center region, yielding a new candidate in the Quintuplet cluster. Limitations of this method and other alternatives are briefly discussed.