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Rare Brown Dwarf Discovery Aids Exoplanet Study

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The discovery of a very rare type of brown dwarf substar could soon provide a better understanding of exoplanets. A team based at the University of Notre Dame is studying data from the TaRgetting bENnchmark-objects with Doppler Spectroscopy (TRENDS) high-contrast imaging survey, which uses adaptive optics and related technologies to target older, faint objects orbiting nearby stars. The observations were made at the W.M. Keck Observatory on Mauna Kea in Hawaii. A brown dwarf, which is a very faint companion to a nearby sunlike star, emits little light because it cools rapidly and...Read full article

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    Published: January 2014
    Glossary
    adaptive optics
    Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of atmospheric distortions. The Earth's atmosphere can cause light passing through it to experience distortions, resulting in image blurring and degradation in various optical applications, such as astronomical observations, laser communications, and imaging systems. Adaptive optics systems actively adjust the optical elements in real-time to compensate for these distortions. Key...
    adaptive opticsAmericaschemicalsexoplanetsHawaiiHIRESIndianaLight Sourceslight spectrumMauna KeaOpticsoptics and optical coatingsorbitResearch & TechnologystarsTech PulseTest & MeasurementTrendsUniversity of Notre Damebrown dwarfJustin R. CreppT-dwarfHD 19467 B dwarftargetting benchmark objects with Doppler spectroscopyhigh-resolution Echelle spectrometer

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