Year: 2025
Type: article
Abstract: HD-51940 is a system with periodic variations in its light curve that resemble those of heartbeat stars(HBS). The system's host shows periodic flux changes. The period is approximately 1.87 days, with a transit depth of 0.15%. However, further research needs more information to study this system. It was initially classified as a possible host of a transiting planet. The number of potential hosts in the system is a mystery. Could HD-51940 be a heartbeat star? To find the answer, we first compared the characteristics of HD-51940 with other defined HBS. We used the Kumar model to fit the light curve and best period of HD-51940, and last, we computed the Fourier transform of the light curve to seek evidence for tidally induced oscillations that would be diagnostic of a heartbeat star. In our conclusion, the surge of flux on the light curve became apparent after we processed and fit the data. In addition, the periodic signal was found. Hence, we determined that HD-51940 is an HBS.
Source: Theoretical and Natural Science
Authors: Tian Qiu, Yushu Liu, Haoxuan Yu, Changxuan Li, Yurui Tao
Institution: Renmin University of China
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funder: Princeton University
OpenAlex ID: W4410129536