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Showing 1–6 of 6 results
Advanced filters: Author: L. Ilsedore Cleeves Clear advanced filters

  • In combination with existing observations and detailed circumstellar models, the detection of hydrogen deuteride emission from the star TW Hydrae implies a circumstellar disk mass of more than 0.05 solar masses, which is enough to form a planetary system like our own.

    • Edwin A. Bergin
    • L. Ilsedore Cleeves
    • Ewine F. van Dishoeck
    Research
    Nature
    Volume: 493, P: 644-646

  • ALMA observations of TW Hydrae in the 13C18O J = 3–2 molecular line probe the mid-plane of the circumstellar disk where giant planets are expected to form. With other lines, the gas mass distribution, temperature and the gas-to-dust ratio are determined.

    • Ke Zhang
    • Edwin A. Bergin
    • Kamber R. Schwarz
    Research
    Nature Astronomy
    Volume: 1, P: 1-6

  • Direct detection of gas phase water from the disk of V883 Ori indicates that disks directly inherit water from the star-forming cloud that becomes incorporated into large icy bodies without notable chemical alteration.

    • John J. Tobin
    • Merel L. R. van ’t Hoff
    • Lucas Cieza
    Research
    Nature
    Volume: 615, P: 227-230

  • An ultraviolet- and carbon-rich environment is needed to explain the bright emission coming from complex organic molecules observed near the midplane of protoplanetary disks. This implies that the gaseous reservoir from which actively forming planets accrete is carbon and organic rich.

    • Jenny K. Calahan
    • Edwin A. Bergin
    • Ke Zhang
    Research
    Nature Astronomy
    Volume: 7, P: 49-56

  • ALMA observations of the protoplanetary disk around HD 100546 reveal an unexpected C/O variation with azimuth. The carbon-dominated wedge of the disk can be reproduced via a model with a shadowing mechanism.

    • Luke Keyte
    • Mihkel Kama
    • Catherine Walsh
    Research
    Nature Astronomy
    Volume: 7, P: 684-693