Theoretical and Natural Science
- The Open Access Proceedings Series for Conferences
Series Vol. 5 , 25 May 2023
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According to current astronomical developments, Doppler and lensing methods are the two most important methods used by astronomers to detect extrasolar planetary systems. Unlike the lensing method, which requires the use of high-precision astronomical telescopes to measure stellar luminosity variations, the Doppler method can rely on simple stellar redshift phenomena and calculations to accurately predict the existence of extraterrestrial planets, their masses, orbital radii, and other basic characteristics. Therefore, Doppler's method will be the most widely used method to measure planetary systems. Based on the derivation of Kepler's third law, the formulas for calculating the masses and orbital distances of planets are discussed and a python program for easy calculation is presented. Also, the limitations of Doppler's method and possible calculation errors are collected, organized, and explained.
Exoplanets, Astrometry, Astrophysics
1. Nature, Michel Mayor and Didier Queloz,1995, p. 355
2. Guixin Li, Thomas Zentgraf & Shuang Zhang. (21 March 2016). Rotational Doppler effect in nonlinear optics. Nature Physics[online], 736.Available From: http://https://www.nature.com/articles/nphys3699.
3. Rick Chen, (Oct 31, 2018) NASA’s First Planet Hunter, the Kepler Space Telescope: 2009-2018, http://https://www.nasa.gov/kepler/missiontimeline, Oct 14, 2022
4. Mary A. Voytek, (October 13, 2022) Gaia Space Observatory, http://https://astrobiology.nasa.gov/missions/gaia-space-observatory/, Oct 14, 2022
5. Weixiong Xu. (Jul., 2016). Astrometric Detection of Exoplanets. ACTA ASTRONOMICA SINICA. 421.
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
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