Sirinrat Sithajan
Papers
2
Total Citations
7
H-Index
2
About
Sirinrat Sithajan is an instrumental astronomer whose work has advanced the frontier of exoplanet detection through precision radial velocity measurements. Her primary research focuses on the development of high-resolution optical spectrographs designed to uncover low-mass planets, particularly the enigmatic class of close-in super-Earths that have reshaped our understanding of planetary system architectures. Sithajan’s most cited work introduces the TOU spectrograph, a robotic, compact instrument achieving a resolving power of R=100,000 across optical wavelengths. This instrument, deployed at the 2-meter Automatic Spectroscopy Telescope at Fairborn Observatory, delivered on-sky Doppler performance capable of detecting the subtle stellar wobbles induced by small, rocky worlds. Her contributions are foundational to the ongoing survey of bright FGK dwarfs, demonstrating that dedicated, high-precision instrumentation can probe the most dominant—and previously unpredicted—population of exoplanets. With her work garnering citations from the HARPS and Kepler communities, Sithajan stands as a key figure in the transition from discovery to characterization of nearby super-Earth systems.
Research Focus
Key Achievements
Top Papers
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