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SUMMARY:#StudentSeminar Very deep inside the SN 1987A core ejecta: Molecul
 ar structures seen in 3D
DTSTART;VALUE=DATE-TIME:20170615T143000Z
DTEND;VALUE=DATE-TIME:20170615T160000Z
DTSTAMP;VALUE=DATE-TIME:20260520T211726Z
UID:indico-event-3018@indico.ific.uv.es
DESCRIPTION:Most massive stars end their lives in core-collapse supernova 
 explosions and enrich the interstellar medium with explosively nucleosynth
 esized elements. Following core collapse\, the explosion is subject to ins
 tabilities as the shock propagates outwards through the progenitor star. O
 bservations of the composition and structure of the innermost regions of a
  core-collapse supernova provide a direct probe of the instabilities and n
 ucleosynthetic products. SN 1987A in the Large Magellanic Cloud (LMC) is o
 ne of very few supernovae for which the inner ejecta can be spatially reso
 lved but are not yet strongly affected by interaction with the surrounding
 s. Our observations of SN 1987A with the Atacama Large Millimeter/Submilli
 meter Array (ALMA) are of the highest resolution to date and reveal the de
 tailed morphology of cold molecular gas in the innermost regions of the re
 mnant. The 3D distributions of carbon and silicon monoxide (CO and SiO) em
 ission differ\, but both have a central deficit\, or torus-like distributi
 on\, possibly a result of radioactive heating during the first weeks (“n
 ickel heating”). The size scales of the clumpy distribution are compared
  quantitatively to models\, demonstrating how progenitor and explosion phy
 sics can be constrained.\n\nhttps://indico.ific.uv.es/event/3018/
LOCATION:Facultad de Física
URL:https://indico.ific.uv.es/event/3018/
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