The first heavy-metal hot subdwarf composite binary SB 744

Nemeth, P; Vos, J; Molina, F; Bastian, A

Nemeth, P (corresponding author), Czech Acad Sci, Astron Inst, Ondrejov 25165, Czech Republic.; Nemeth, P (corresponding author), Astroserver Org, Fo Ter 1, H-8533 Malomsok, Hungary.

ASTRONOMY & ASTROPHYSICS, 2021; 653 ():

Abstract

Aims. The long-period sdOB+G1V type spectroscopic binary SB 744 reveals strong lines of fluorine and lead in the optical spectrum of the sdOB star and......

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