2018/11/16 by Krystian Iłkiewicz, J. Mikołajewska, Ilkiewicz, Krystian +9
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies
paper · pdf · doi:10.48550/arxiv.1811.06696
openalex publication_date 2018/11/16 · openalex created_date 2022/08/02 · openalex updated_date 2026/07/28
We have initiated a survey aimed at locating a nearly complete sample of\nclassical symbiotic stars (SySt) in the Magellanic Clouds. Such a sample is\nnearly impossible to obtain in the Milky Way, and is essential to constrain the\nformation, evolution and demise of these strongly interacting, evolved binary\nstars. We have imaged both Clouds in Halpha and He II 4686 narrow-band filters\ndeeply enough to detect all known symbiotic stars. While He II 4686 is not\npresent in all SySt, our method should yield a high success rate because the\nmimics of SySt are not as likely as true symbiotics to show this emission line.\nWe demonstrate the viability of our method through the discovery and\ncharacterization of three new SySt in the Small Magellanic Cloud: 2MASS\nJ00411657-7233253, 2MASS J01104404-7208464 and 2MASS J01113745-7159023.\nEnigmatic variability was observed in 2MASS J01113745-7159023, where changes in\nthe amplitude of its quasi-periodic variability may suggest an enhanced mass\ntransfer rate during a periastron passage on an elliptical orbit. 2MASS\nJ01104404-7208464 is an ellipsoidal variable with an orbital period of 403d.\n