Results 211 to 220 of about 2,057,964 (253)

Image processing methods for exoplanets detection and characterization in starshade observations

Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 2018
A starshade is a promising instrument for the direct imaging and characterization of exoplanets. However, even with a starshade, exoplanets are difficult to detect because detector noise, starshade defects, and misalignment (dynamics of the starshade system) degrade the signal to noise ratio (SNR) and contrast.
N. Jeremy Kasdin, Anthony Harness, Mengya Hu   +2 more
openaire   +1 more source

Detection Biases and Methodological Impacts in Exoplanet Discovery

2025 5th International Conference on Soft Computing for Security Applications (ICSCSA)
A lot more information about planets outside our solar system is available now due to exoplanet discoveries. However, the biases introduced by detection methods like Transit and Radial Velocity affect the observed characteristics of detected exoplanets ...
Shaan Mirchandani, Vinay Vishwakarma
semanticscholar   +1 more source

A Review of Exoplanets Detection Methods

2018
A brief introduction to the discovery of planets outside the solar system is presented. Statistical challenges in the analysis of noisy Exoplanets data are indicated, with emphasis on NASA’s Kepler mission.
openaire   +1 more source

Machine learning revolution for exoplanet direct imaging detection: transformer architectures

Techniques and Instrumentation for Detection of Exoplanets XII
Directly imaging exoplanets is a formidable challenge due to extreme contrast ratios and quasi-static speckle noise, motivating the exploration of advanced post-processing methods.
Yu-Chia Lin
semanticscholar   +1 more source

Detection Methods and Properties of Known Exoplanets

2008
Following the historic discovery of the first extrasolar planet, 51 Pegasi b, in 1995 (Mayor and Queloz, 1995) more than 200 planets orbiting other stars have now been catalogued. The vast majority of these planets have been detected with the radial velocity technique, which is biased towards heavy, close-orbiting planets.
openaire   +1 more source

Biases in the Transit, Radial velocity, Gravitational Microlensing, and direct Imaging exoplanet discovery methods

Journal of high school science
The field of extrasolar planets or exoplanets, planets in star systems outside of the solar system, is a relatively new field of astronomy emerging in the late 20th century.
Ruixuan He
semanticscholar   +1 more source

ESCAPE project: investigating active observing strategies and post-processing methods for exoplanet high-contrast imaging with future space missions

Astronomical Telescopes + Instrumentation
The search for biosignatures in potentially habitable exoplanets is one of the major astrophysics’ drivers for the coming decades, and the prime science goal of the HWO NASA mission, a large UV-Optical-IR space telescope to be launched in the 2040s.
É. Choquet, Lisa Altinier, Nicolas Godoy, A. Lau, Arthur Vigan, David Mary   +5 more
semanticscholar   +1 more source

Comparison of methods for detection and characterization of exoplanets with SPHERE/IRDIS

SPIE Proceedings, 2010
SPHERE is a second generation instrument for the Very Large Telescope (VLT) which will aim at directly detecting the intrinsic flux of young giant exoplanets thanks to a dedicated extreme adaptive optics system and coronagraphs. Exoplanet detection in the near-infrared will be performed in parallel with an integral field spectrograph and a ...
Vigan, Arthur, Moutou, C., Langlois, M., Mouillet, D., Dohlen, K., Boccaletti, A., Carbillet, M., Smith, I., Ferrari, Anthony, Mugnier, L., Thalmann, C., Mclean, Ian, Ramsay, Suzanne, Takami, Hideki   +13 more
openaire   +1 more source

A demonstration device to simulate the radial velocity method for exoplanet detection

Physics Education, 2016
A device for simulating exoplanet detection by the radial method based on the Doppler principle has been constructed. The spectral shift of light from a distant star, mutually revolving with the exoplanet, is simulated by the spectral shift of the sound wave emitted by the device's star approaching and receding relative to the static frequency detector.
W Choopan, W Liewrian, W Ketpichainarong, B Panijpan   +3 more
openaire   +1 more source

The Radial Velocity Method for the Detection of Exoplanets

2016
The radial velocity (RV) method has provided the foundation for the research field of exoplanets. It created the field by discovering the first exoplanets and then blazed a trail by detecting over 1000 exoplanets in orbit around other stars. The method also plays a vital role in transit searches by providing the planetary mass needed to calculate the ...
openaire   +1 more source