A Study of the Radial Velocity of BX Andromedae

• Main Authors: Chung-Uk Lee, In-Woo Han, Kang-Min Kim, Chun-Hwey Kim
• Format: Article
• Language: English
• Published: Korean Space Science Society (KSSS) 2004-12-01
• Series: Journal of Astronomy and Space Sciences
• Subjects: eclipsing binary; BX And; spectroscopic observation; radial velocity; absolute dimension
• Online Access: http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2004/v21n4/OJOOBS_2004_v21n4_263.pdf

High resolution spectroscopic observations of BX And using the BOES (Bohyunsan Optical Echelle Spectrograph) of Bohyunsan Optical Astronomical Observatory (BOAO) were performed during 26-27, Feb. 2003. From the observations, we obtained 38 line spectra of BX And which cover all phases except the phase interval between 0.p1 and 0.p3. Both methods of the CCF (Cross-Correlation Function) and BF (Broadening Function) were used to get the radial velocities of primary and secondary components. Both velocities of the primary and secondary stars were calculated with the BF method while only primary velocities were determined with the CCF. Using new radial velocity curves, the maximum radial velocities of the primary and secondary stars were obtained as K1 = 96.1km/s and K2 = 196.6km/s, respectively. New absolute dimension of BX And was deduced with the combination of our spectroscopic solution with the photometric one of Bell et al (1990).