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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20121005T123000
DTEND;TZID=Atlantic/Canary:20121005T133000
UID:iactalks-408
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/408
CREATED:2012-10-05T12:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Searching for SNIa Companions in Galactic SNe: the case of SN 1006
DESCRIPTION:Searching for SNIa Companions in Galactic SNe: the case of SN 1
 006\nDr. Jonay González Hernández\n\nType-Ia supernovae (SNIa) are belie
 ved to be thermonuclear explosions of  accreting carbon-oxygen white dwarf
 s that reach the Chandrasekhar mass  limit of about 1.39 solar masses. How
 ever, the nature of the companion  star is still under debate, i.e. to be 
 either a dwarf, a sub giant, or a  giant star (single-degenerate channel),
  or another white dwarf  (double-degenerate channel). Both channels have b
 een proposed but their  relative frequency remains unclear. We have been e
 xploring regions close  to the center of supernova remnants of Galactic SN
 e to search for the  companion of these type-Ia SNe. I will show the very 
 recent results we  have found in two Galactic type-Ia SNe.
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