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Gamma-ray bursts an...
Gamma-ray bursts and X-ray melting of material to form chondrules and planets
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Duggan, P (author)
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McBreen, B (author)
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Carr, A J (author)
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Winston, E (author)
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Vaughan, G (author)
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Hanlon, L (author)
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McBreen, S (author)
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Metcalfe, S (author)
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- Kvick, Åke (author)
- Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Terry, A E (author)
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(creator_code:org_t)
- 2003-11-17
- 2003
- English.
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In: Astronomy & Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 409:2, s. 9-12
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Chondrules are millimeter sized objects of spherical to irregular shape that constitute the major component of chondritic meteorites that originate in the region between Mars and Jupiter and which fall to Earth. They appear to have solidified rapidly from molten or partially molten drops. The heat source that melted the chondrules remains uncertain. The intense radiation from a gamma-ray burst (GRB) is capable of melting material at distances up to 300 light years. These conditions were created in the laboratory for the first time when millimeter sized pellets were placed in a vacuum chamber in the white synchrotron beam at the European Synchrotron Radiation Facility (ESRF). The pellets were rapidly heated in the X-ray and gamma-ray furnace to above 1400 degreesC melted and cooled. This process heats from the inside unlike normal furnaces. The melted spherical samples were examined with a range of techniques and found to have microstructural properties similar to the chondrules that come from meteorites. This experiment demonstrates that GRBs can melt precursor material to form chondrules that may subsequently influence the formation of planets. This work extends the field of laboratory astrophysics to include high power synchrotron sources.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- methods : laboratory
- solar system : general
- X-rays : general planetary systems : formation
- gamma rays : bursts
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Duggan, P
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McBreen, B
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Carr, A J
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Winston, E
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Vaughan, G
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Hanlon, L
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show more...
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McBreen, S
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Metcalfe, S
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Kvick, Åke
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Terry, A E
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Astronomy & Astr ...
- By the university
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Lund University