Photometric Reduction and Lomb-Scargle Periodogram Analysis of the Field Blue Horizontal Branch Star HD 161817 Using TESS Space Telescope Data

This dataset contains the processed TESS space telescope light curve (Sector 53, observed from 2022-06-13 to 2022-07-08) and the corresponding Lomb-Scargle periodogram analysis of the Field Blue Horizontal Branch (FHB) star HD 161817. The analysis reveals a significant periodic signal at approximately 6.80 days, along with secondary bump features in the light curve phases. These preliminary findings suggest potential rotational modulation due to chemical/magnetic spots or the presence of a close substellar/stellar companion (e.g., a Hot Jupiter or an evolved companion). This work represents independent research to constrain the physical parameters of HD 161817.