Detectability of exomoons by examining the signals from a model of transiting exoplanets with moons
Issued Date
2022-01-07
Resource Type
ISSN
17426588
eISSN
17426596
Scopus ID
2-s2.0-85123702161
Journal Title
Journal of Physics: Conference Series
Volume
2145
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Physics: Conference Series Vol.2145 No.1 (2022)
Suggested Citation
Cherdwongsung P., Awiphan S., Kittara P., Matan K., Nakharutai N. Detectability of exomoons by examining the signals from a model of transiting exoplanets with moons. Journal of Physics: Conference Series Vol.2145 No.1 (2022). doi:10.1088/1742-6596/2145/1/012009 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/86929
Title
Detectability of exomoons by examining the signals from a model of transiting exoplanets with moons
Author's Affiliation
Other Contributor(s)
Abstract
Exomoons are natural satellites of exoplanets. Nowadays, none has been confirmed. However, a number of detection techniques have been proposed, including Transit Timing Variations (TTV) and Transit Duration Variations (TDV) techniques. From a recent study, fitting observed transit with the traditional photocentric fitting model shows unique features around the primary and secondary exomoon transits in TDV and transit depth signals, which might reduce the detectability. The aim of this work is to retrieve the variation of TTV, TDV and transit depth signals of exomoon systems with the photocentric fitting model. One year star-planet-moon transit light curves are simulated with LUNA algorithm and fit with TransitFit. The results show that neglecting the TDV and transit depth data with phase around exomoon's primary and secondary transits improve the exomoon detectability by a factor of ten and the systems with large moon orbital semi-major axis with nearly edge-on orbit around low mass stars can be detected.