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Ground-Based Light Curve Follow-Up Validation Observations of TESS Object of Interest 5907.01

Year: 2025
Type: article
Abstract: Transiting exoplanets are instrumental for studying the formation and evolution of planetary systems, and the TESS mission has identified TOI-5907.01 as a candidate orbiting its host star, TOI-5907. By investigating exoplanet transits, space institutions like NASA have been able to characterize 3,000 confirmed candidates (https://science.nasa.gov/mission/roman-space-telescope/transit-method/). This investigation will examine whether TOI-5907.01 is a genuine transiting exoplanet by validating the detection through transit photometry. The study will also assess the reliability of the observed signal by analyzing light curve data with consistency of planetary transit characteristics. Ground-based light curves were analyzed using AstroImageJ to validate the candidate exoplanet. It is necessary to consider the limited scope of our research, which prevents us from employing other detection methods, such as radial velocity measurements using a high-resolution spectrograph, or conducting a thorough false-positive analysis with software like Vespa. The extracted light curve and subsequent observations on the transit depth and period are suggestive of a planetary signal and its nature. However, we cannot reach a conclusive deduction on whether the host star TOI-5907 is orbited by candidate TOI-5907.01 because the even-odd test doesn’t eliminate NEB contamination. Future work employing alternative methods, such as radial velocity, high-contrast imaging, and comprehensive false-positive analysis, will provide additional supporting evidence.
DOI: 10.13021/mars/15164
Authors: Jin, Kenneth, Plavchan, Peter
Language: English
Open Access status: green
OpenAlex ID: W7092178043
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