Ozkardes, BurcuSurgit, DeryaErdem, AhmetBudding, EdwinSoydugan, FarukDemircan, Osman2025-01-272025-01-272012978-1-107-01982-91743-92131743-9221https://doi.org/10.1017/S1743921311026925https://hdl.handle.net/20.500.12428/27890282nd Symposium of the International-Astronomical-Union -- JUL 18-22, 2011 -- Tatranska Lomnica, SLOVAKIAThis paper presents high resolution spectroscopy of the HX Vel (IDS 08390-4744 AB) multiple system. New spectroscopic observations of the system were made at Mt. John University Observatory in 2007 and 2008. Radial velocities of both components of HX Vel A were measured using gaussian fitting. The spectroscopic mass ratio of the close binary was determined as 0.599 +/- 0.052, according to a Keplerian orbital solution. The resulting orbital elements are a(1)sini=0.0098 +/- 0.0003 AU, a(2)sini=0.0164 +/- 0.0003 AU, M(1)sin(3)i=1.19 +/- 0.07 M-circle dot and M(2)sin(3)i=0.71 +/- 0.04 M-circle dot.eninfo:eu-repo/semantics/openAccessmethods: data analysistechniques: spectroscopicstars: early-type(stars:) binaries (including multiple): closestars: individual (HX Vel A)Conference Object28267+10.1017/S1743921311026925N/AWOS:0003092444000162-s2.0-84887397083Q4