Show simple item record

dc.contributor.authorQi, Chunhua
dc.contributor.authorOberg, Karin
dc.contributor.authorWilner, David J.
dc.contributor.authorD'Alessio, Paola
dc.contributor.authorBergin, E.
dc.contributor.authorAndrews, Sean M.
dc.contributor.authorBlake, G. A.
dc.contributor.authorHogerheijde, M. R.
dc.contributor.authorvan Dishoeck, E. F.
dc.date.accessioned2017-09-25T20:49:53Z
dc.date.issued2013
dc.identifier.citationQi, C., K. I. Oberg, D. J. Wilner, P. D’Alessio, E. Bergin, S. M. Andrews, G. A. Blake, M. R. Hogerheijde, and E. F. van Dishoeck. 2013. “Imaging of the CO Snow Line in a Solar Nebula Analog.” Science 341 (6146) (July 18): 630–632. doi:10.1126/science.1239560.en_US
dc.identifier.issn0036-8075en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33946921
dc.description.abstractPlanets form in the disks around young stars. Their formation efficiency and composition are intimately linked to the protoplanetary disk locations of “snow lines” of abundant volatiles. We present chemical imaging of the carbon monoxide (CO) snow line in the disk around TW Hya, an analog of the solar nebula, using high spatial and spectral resolution Atacama Large Millimeter/Submillimeter Array observations of diazenylium (N2H+), a reactive ion present in large abundance only where CO is frozen out. The N2H+ emission is distributed in a large ring, with an inner radius that matches CO snow line model predictions. The extracted CO snow line radius of ∼30 astronomical units helps to assess models of the formation dynamics of the solar system, when combined with measurements of the bulk composition of planets and comets.en_US
dc.description.sponsorshipAstronomyen_US
dc.language.isoen_USen_US
dc.publisherAmerican Association for the Advancement of Science (AAAS)en_US
dc.relation.isversionofdoi:10.1126/science.1239560en_US
dc.relation.hasversionhttps://arxiv.org/abs/1307.7439en_US
dash.licenseOAP
dc.titleImaging of the CO Snow Line in a Solar Nebula Analogen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalScienceen_US
dash.depositing.authorOberg, Karin
dc.date.available2017-09-25T20:49:53Z
dc.identifier.doi10.1126/science.1239560*
dash.authorsorderedfalse
dash.contributor.affiliatedAndrews, Sean
dash.contributor.affiliatedQi, Chunhua
dash.contributor.affiliatedOberg, Karin
dash.contributor.affiliatedWilner, David


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record