SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:lup.lub.lu.se:e6f7ae2a-1935-4d4c-9735-f3d78cf8ef65"
 

Sökning: onr:"swepub:oai:lup.lub.lu.se:e6f7ae2a-1935-4d4c-9735-f3d78cf8ef65" > Gamma-ray bursts an...

Gamma-ray bursts and X-ray melting of material to form chondrules and planets

Duggan, P (författare)
McBreen, B (författare)
Carr, A J (författare)
visa fler...
Winston, E (författare)
Vaughan, G (författare)
Hanlon, L (författare)
McBreen, S (författare)
Metcalfe, S (författare)
Kvick, Åke, (författare)
Lunds universitet, Lund University, Lunds Tekniska Högskola, Faculty of Engineering, LTH, Institutioner vid LTH, Departments at LTH, Kemiska institutionen, Department of Chemistry, Centrum för analys och syntes, Centre for Analysis and Synthesis
Terry, A E (författare)
visa färre...
Lunds universitet Centrum för analys och syntes. (creator_code:org_t)
2003
Engelska.
Ingår i: Astronomy & Astrophysics. - EDP Sciences. - 0004-6361. ; 409:2, s. 9-12
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • 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.

Ämnesord

NATURVETENSKAP  -- Kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Nyckelord

methods : laboratory
solar system : general
X-rays : general planetary systems : formation
gamma rays : bursts

Publikations- och innehållstyp

art (ämneskategori)
ref (ämneskategori)
art (ämneskategori)
ref (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy