Magnetocentrifugal jets and chondrule formation in protostellar disks

Poster


Salmeron, Raquel and Ireland, Trevor. 2014. "Magnetocentrifugal jets and chondrule formation in protostellar disks." Booth, Mark, Matthews, Brenda C. and Graham, James R. (ed.) 2013 IAU Symposium: Exploring the Formation and Evolution of Planetary Systems. Victoria, Canada 02 - 07 Jun 2013 United States. https://doi.org/10.1017/S1743921313008442
Paper/Presentation Title

Magnetocentrifugal jets and chondrule formation in protostellar disks

Presentation TypePoster
AuthorsSalmeron, Raquel (Author) and Ireland, Trevor (Author)
EditorsBooth, Mark, Matthews, Brenda C. and Graham, James R.
Journal or Proceedings TitleProceedings of the International Astrological Union
Journal Citation8 (S299), pp. 228-229
Number of Pages2
Year2014
Place of PublicationUnited States
ISBN9781107045200
Digital Object Identifier (DOI)https://doi.org/10.1017/S1743921313008442
Web Address (URL) of Paperhttps://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/magnetocentrifugal-jets-and-chondrule-formation-in-protostellar-disks/AB87D2A9849E5A86F9FE8938A3C30D86
Conference/Event2013 IAU Symposium: Exploring the Formation and Evolution of Planetary Systems
Event Details
2013 IAU Symposium: Exploring the Formation and Evolution of Planetary Systems
Event Date
02 to end of 07 Jun 2013
Event Location
Victoria, Canada
Abstract

Chondrite meteorites are the building blocks of the solar nebula, out of which our Solar System formed. They are a mixture of silicate and oxide objects (chondrules and refractory inclusions) that experienced very high temperatures, set in a matrix that remained cold. Their prevalence suggests that they formed through a very general process, closely related to stellar and planet formation. However the nature and properties of the responsible mechanism have remained unclear. The evidence for a hot solar nebula provided by this material seems at odds with astrophysical observations of forming stars. These indicate that the typical temperatures of protostellar disks are too low to melt and vapourise silicate minerals at the radial distances sampled by chondrule-bearing meteorites. Here, we show that processing of precursors in a protostellar outflow at radial distances of about 1 – 3 AU can heat them to their melting points and explain their basic properties, while retaining association with the colder matrix.

Keywordssolar system - formation; planetary systems; protoplanetary disks; jets and outflows
ANZSRC Field of Research 2020510109. Stellar astronomy and planetary systems
Public Notes

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Byline AffiliationsAustralian National University
Institution of OriginUniversity of Southern Queensland
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