Methods of detecting extrasolar planets | Wikipedia audio article
Channel: wikipedia tts
Date: 29/05/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Methods_of_detecting_exoplanets


00:00:53 1 Established detection methods
00:01:13 1.1 Radial velocity
00:07:37 1.2 Transit photometry
00:07:47 1.2.1 Technique, advantages, and disadvantages
00:21:40 1.2.2 History
00:24:57 1.3 Reflection/Emission Modulations
00:28:41 1.4 Relativistic beaming
00:30:53 1.5 Ellipsoidal variations
00:32:01 1.6 Pulsar timing
00:34:12 1.7 Variable star timing
00:35:15 1.8 Transit timing
00:37:50 1.9 Transit duration variation
00:38:45 1.10 Eclipsing binary minima timing
00:40:51 1.11 Gravitational microlensing
00:46:13 1.12 Direct imaging
00:49:35 1.12.1 Early discoveries
00:52:38 1.12.2 Imaging instruments
00:54:15 1.13 Polarimetry
00:56:09 1.14 Astrometry
01:01:49 2 Other possible methods
01:01:59 2.1 Flare and variability echo detection
01:02:48 2.2 Transit imaging
01:03:49 2.3 Magnetospheric radio emissions
01:04:15 2.4 Auroral radio emissions
01:04:38 2.5 Optical interferometry
01:05:08 2.6 Modified interferometry
01:05:32 3 Detection of extrasolar asteroids and debris disks
01:05:44 3.1 Circumstellar disks
01:08:29 3.2 Contamination of stellar atmospheres
01:10:02 4 Space telescopes
01:11:34 5 Primary and secondary detection
01:11:44 6 Verification and falsification methods
01:12:15 7 Characterization methods
01:12:52 8 See also



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SUMMARY
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Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare that washes it out. For those reasons, very few of the extrasolar planets reported as of April 2014 have been observed directly, with even fewer being resolved from their host star.
Instead, astronomers have generally had to resort to indirect methods to detect extrasolar planets. As of 2016, several different indirect methods have yielded success.