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Abundant hydrocarbons in the disk around a very-low-mass star.

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Title: Abundant hydrocarbons in the disk around a very-low-mass star.
Authors: Arabhavi, A. M., Kamp, I., Henning, Th., Dishoeck, E. F. van, Christiaens, V., Gasman, D., Perrin, A., Güdel, M., Tabone, B., Kanwar, J., Waters, L. B. F. M., Pascucci, I., Samland, M., Perotti, G., Bettoni, G., Grant, S. L., Lagage, P. O., Ray, T. P., Vandenbussche, B., Absil, O.
Source: Science (pre-March 2025). 6/7/2024, Vol. 384 Issue 6700, p1086-1090. 5p. 2 Color Photographs, 1 Chart.
Subjects: James Webb Space Telescope (Spacecraft), Mid-infrared spectroscopy, Inner planets, Planetary orbits, Space telescopes, Hydrocarbons, Titan (Satellite), Protoplanetary disks
Abstract: Very-low-mass stars (those less than 0.3 solar masses) host orbiting terrestrial planets more frequently than other types of stars. The compositions of those planets are largely unknown but are expected to relate to the protoplanetary disk in which they form. We used James Webb Space Telescope mid-infrared spectroscopy to investigate the chemical composition of the planet-forming disk around ISO-ChaI 147, a 0.11-solar-mass star. The inner disk has a carbon-rich chemistry; we identified emission from 13 carbon-bearing molecules, including ethane and benzene. The high column densities of hydrocarbons indicate that the observations probe deep into the disk. The high carbon-to-oxygen ratio indicates radial transport of material within the disk, which we predict would affect the bulk composition of any planets forming in the disk. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Abundant hydrocarbons in the disk around a very-low-mass star.
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  Data: <searchLink fieldCode="AR" term="%22Arabhavi%2C+A%2E+M%2E%22">Arabhavi, A. M.</searchLink><br /><searchLink fieldCode="AR" term="%22Kamp%2C+I%2E%22">Kamp, I.</searchLink><br /><searchLink fieldCode="AR" term="%22Henning%2C+Th%2E%22">Henning, Th.</searchLink><br /><searchLink fieldCode="AR" term="%22Dishoeck%2C+E%2E+F%2E+van%22">Dishoeck, E. F. van</searchLink><br /><searchLink fieldCode="AR" term="%22Christiaens%2C+V%2E%22">Christiaens, V.</searchLink><br /><searchLink fieldCode="AR" term="%22Gasman%2C+D%2E%22">Gasman, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Perrin%2C+A%2E%22">Perrin, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Güdel%2C+M%2E%22">Güdel, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Tabone%2C+B%2E%22">Tabone, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Kanwar%2C+J%2E%22">Kanwar, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Waters%2C+L%2E+B%2E+F%2E+M%2E%22">Waters, L. B. F. M.</searchLink><br /><searchLink fieldCode="AR" term="%22Pascucci%2C+I%2E%22">Pascucci, I.</searchLink><br /><searchLink fieldCode="AR" term="%22Samland%2C+M%2E%22">Samland, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Perotti%2C+G%2E%22">Perotti, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Bettoni%2C+G%2E%22">Bettoni, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Grant%2C+S%2E+L%2E%22">Grant, S. L.</searchLink><br /><searchLink fieldCode="AR" term="%22Lagage%2C+P%2E+O%2E%22">Lagage, P. O.</searchLink><br /><searchLink fieldCode="AR" term="%22Ray%2C+T%2E+P%2E%22">Ray, T. P.</searchLink><br /><searchLink fieldCode="AR" term="%22Vandenbussche%2C+B%2E%22">Vandenbussche, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Absil%2C+O%2E%22">Absil, O.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 6/7/2024, Vol. 384 Issue 6700, p1086-1090. 5p. 2 Color Photographs, 1 Chart.
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  Data: <searchLink fieldCode="DE" term="%22James+Webb+Space+Telescope+%28Spacecraft%29%22">James Webb Space Telescope (Spacecraft)</searchLink><br /><searchLink fieldCode="DE" term="%22Mid-infrared+spectroscopy%22">Mid-infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Inner+planets%22">Inner planets</searchLink><br /><searchLink fieldCode="DE" term="%22Planetary+orbits%22">Planetary orbits</searchLink><br /><searchLink fieldCode="DE" term="%22Space+telescopes%22">Space telescopes</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink><br /><searchLink fieldCode="DE" term="%22Titan+%28Satellite%29%22">Titan (Satellite)</searchLink><br /><searchLink fieldCode="DE" term="%22Protoplanetary+disks%22">Protoplanetary disks</searchLink>
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  Data: Very-low-mass stars (those less than 0.3 solar masses) host orbiting terrestrial planets more frequently than other types of stars. The compositions of those planets are largely unknown but are expected to relate to the protoplanetary disk in which they form. We used James Webb Space Telescope mid-infrared spectroscopy to investigate the chemical composition of the planet-forming disk around ISO-ChaI 147, a 0.11-solar-mass star. The inner disk has a carbon-rich chemistry; we identified emission from 13 carbon-bearing molecules, including ethane and benzene. The high column densities of hydrocarbons indicate that the observations probe deep into the disk. The high carbon-to-oxygen ratio indicates radial transport of material within the disk, which we predict would affect the bulk composition of any planets forming in the disk. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=177692217
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        Value: 10.1126/science.adi8147
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      – SubjectFull: Mid-infrared spectroscopy
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