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

Fuente: arXiv

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Dettagli Bibliografici
Autori principali:	Arabhavi, A. M., Kamp, I., Henning, Th., van Dishoeck, E. F., 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., Argyriou, I., Barrado, D., Boccaletti, A., Bouwman, J., Garatti, A. Caratti o, Glauser, A. M., Lahuis, F., Mueller, M., Olofsson, G., Pantin, E., Scheithauer, S., Morales-Calderón, M., Franceschi, R., Jang, H., Pawellek, N., Rodgers-Lee, D., Schreiber, J., Schwarz, K., Temmink, M., Vlasblom, M., Wright, G., Colina, L., Östlin, G.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	Earth and Planetary Astrophysics Solar and Stellar Astrophysics
Accesso online:	Acceder al recurso
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_version_	1866916295879950336
author	Arabhavi, A. M. Kamp, I. Henning, Th. van Dishoeck, E. F. 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. Argyriou, I. Barrado, D. Boccaletti, A. Bouwman, J. Garatti, A. Caratti o Glauser, A. M. Lahuis, F. Mueller, M. Olofsson, G. Pantin, E. Scheithauer, S. Morales-Calderón, M. Franceschi, R. Jang, H. Pawellek, N. Rodgers-Lee, D. Schreiber, J. Schwarz, K. Temmink, M. Vlasblom, M. Wright, G. Colina, L. Östlin, G.
author_facet	Arabhavi, A. M. Kamp, I. Henning, Th. van Dishoeck, E. F. 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. Argyriou, I. Barrado, D. Boccaletti, A. Bouwman, J. Garatti, A. Caratti o Glauser, A. M. Lahuis, F. Mueller, M. Olofsson, G. Pantin, E. Scheithauer, S. Morales-Calderón, M. Franceschi, R. Jang, H. Pawellek, N. Rodgers-Lee, D. Schreiber, J. Schwarz, K. Temmink, M. Vlasblom, M. Wright, G. Colina, L. Östlin, G.
contents	Very low-mass stars (those <0.3 solar masses) host orbiting terrestrial planets more frequently than other types of stars, but the compositions of those planets are largely unknown. We use mid-infrared spectroscopy with the James Webb Space Telescope 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 identify emission from 13 carbon-bearing molecules including ethane and benzene. We derive large column densities of hydrocarbons indicating that we probe deep into the disk. The high carbon to oxygen ratio we infer indicates radial transport of material within the disk, which we predict would affect the bulk composition of any planets forming in the disk.
format	Preprint
id	arxiv_https___arxiv_org_abs_2406_14293
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Abundant hydrocarbons in the disk around a very-low-mass star Arabhavi, A. M. Kamp, I. Henning, Th. van Dishoeck, E. F. 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. Argyriou, I. Barrado, D. Boccaletti, A. Bouwman, J. Garatti, A. Caratti o Glauser, A. M. Lahuis, F. Mueller, M. Olofsson, G. Pantin, E. Scheithauer, S. Morales-Calderón, M. Franceschi, R. Jang, H. Pawellek, N. Rodgers-Lee, D. Schreiber, J. Schwarz, K. Temmink, M. Vlasblom, M. Wright, G. Colina, L. Östlin, G. Earth and Planetary Astrophysics Solar and Stellar Astrophysics Very low-mass stars (those <0.3 solar masses) host orbiting terrestrial planets more frequently than other types of stars, but the compositions of those planets are largely unknown. We use mid-infrared spectroscopy with the James Webb Space Telescope 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 identify emission from 13 carbon-bearing molecules including ethane and benzene. We derive large column densities of hydrocarbons indicating that we probe deep into the disk. The high carbon to oxygen ratio we infer indicates radial transport of material within the disk, which we predict would affect the bulk composition of any planets forming in the disk.
title	Abundant hydrocarbons in the disk around a very-low-mass star
topic	Earth and Planetary Astrophysics Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2406.14293