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    HD 106906 tagged posts

    Exoplanet around Distant Star resembles reputed ‘Planet Nine’ in our solar system

    December 15, 2020, Categories  Astronomy/Space

    This Hubble Space Telescope image shows one possible orbit (dashed ellipse) of the 11-Jupiter-mass exoplanet HD 106906 b. This remote world is widely separated from its host stars, whose brilliant light is masked here to allow the planet to be seen. The planet resides outside its system’s circumstellar debris disk, which is akin to our own Kuiper Belt of small, icy bodies beyond Neptune. The disk itself is asymmetric and distorted, perhaps due to the gravitational tug of the wayward planet. Other points of light in the image are background stars. (Image by NASA, ESA, Meiji Nguyen/UC Berkeley, Robert De Rosa/ESO and Paul Kalas/UC Berkeley and SETI Institute)

    Astronomers confirm bound orbit for planet far from its star, showing that far-flung planets exist...

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    Exiled Planet Linked to Stellar Flyby 3 million years ago

    March 2, 2019, Categories  Astronomy/Space


    Researchers explored a material that has an internal structure, shown in 3D in left panel, that consists of triangles and hexagons arranged in a pattern similar to that of a Japanese kagome basket.
    Credit: Hasan, et. al, Princeton University

    Two binary star systems narrowly missed one another, but left behind a smoking gun. Paul Kalas of UC Berkeley was puzzled by the tilted but stable orbit of a planet around a binary star – an orbit like that of our solar system’s proposed Planet Nine. He calculated backwards in time to see if any of the 461 nearby stars ever came close enough to perturb the system. One star fit the bill. The stellar flyby 2-3 million years ago likely stabilized the planet’s orbit, keeping it from flying away.

    Some of the peculiar aspects of our solar system – an env...

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    Exiled Exoplanet likely Kicked out of Star’s Neighborhood

    December 2, 2015, Categories  Astronomy/Space

    These are two direct images of the cometary dust and exoplanet surrounding the young star HD 106906. The wider field in blue shows Hubble Space Telescope data where the star's blinding light is artificially eclipsed (gray circular mask). The point to the upper right is an 11 Jupiter mass planet located over 650 times the Earth-Sun distance. A new discovery in these Hubble observations is an extremely asymmetric nebulosity indicating a dynamically disturbed system of comets. Surprisingly, the planet is located 21 degrees above the plane of the nebulosity. The circular orange inset shows a region much closer to the star that can only be detected using advanced adaptive optics from the ground-based Gemini Observatory. Using the Gemini Planet Imager (GPI), researchers found a narrow loop of nebulosity suggesting that a planetary system formed close to the star, but somehow the architecture of the outer regions is severely disrupted. The investigators also find that the planet HD 106906b may have a dusty ring system of its own, motivating future work with Hubble and ground-based astronomical observatories. Credit: Paul Kalas, UC Berkeley

    These are two direct images of the cometary dust and exoplanet surrounding the young star HD 106906. The wider field in blue shows Hubble Space Telescope data where the star’s blinding light is artificially eclipsed (gray circular mask). The point to the upper right is an 11 Jupiter mass planet located over 650 times the Earth-Sun distance. A new discovery in these Hubble observations is an extremely asymmetric nebulosity indicating a dynamically disturbed system of comets. Surprisingly, the planet is located 21 degrees above the plane of the nebulosity. The circular orange inset shows a region much closer to the star that can only be detected using advanced adaptive optics from the ground-based Gemini Observatory...

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