These images show evidence for the possible detection of a binary star system that was later destroyed in a supernova explosion. ... The initial search for the progenitor of SN 2007on, reported in Nature, argued that the X-ray source lying inside the circle is the likely progenitor for the supernova.
www.physorg.com/news122129574.html
Supernova - Wikipedia, the free encyclopedia
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A supernova (pl. supernovae ) is a stellar explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over s...
en.wikipedia.org/wiki/Supernova
Type II supernova - Wikipedia, the free encyclopedia
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A type II supernova belongs to a sub-category of cataclysmic variable star known as a core-collapse supernova, which results from the internal collapse and violent explosion of a massive star. The p...
en.wikipedia.org/wiki/Type_II_supernova
26. What produces a type-I supernova? a) The collapse of the ... Constellation questions will be asked in the distance learning section of the course taught by Dr. Wallin. These are pretty easy questions if you have been following the lecture notes. I don't know if Dr. Ozernoy will be asking these questions on his test.
astro.gmu.edu/classes/a113/practice/PRACTICE2.HTM
Evolutionary models for SNI progenitor stars ... Many researchers have proposed that the Type I supernova (SNI) explosion originates in a white dwarf (WD) star that is undergoing mass accretion from a companion star in a close binary orbit. ... I discuss the details of these calculations, which are based on a variant of the...
www.osti.gov/energycitations/product.biblio.jsp?osti_id... www.osti.gov/energycitations/product.biblio.jsp?osti_id=5026020
The initial search for the progenitor of SN 2007on, reported in Nature, argued that the X-ray source lying inside the circle is the likely progenitor for the supernova. ... "Finding the progenitor to one of these Type Ia supernovas is a great chase in astronomy right now," he said. "These supernovas are great tools...
spacespin.org/article.php/80222-sn-2007on-in-ngc-1404
If the total mass of the WD-WD binary is above the Chandrasekhar mass, the system may be a progenitor to a type I supernova. ... Though small, these figures can be menacing. When it comes to body art, scorpion tattoos will likely have the same effect, and be both beautiful and intimidating to those who can bring themselves...
www.lujec.com/
V2487 Ophiuchi: A strong candidate for a recurrent nova and a progenitor system of Type Ia supernova ... These features strongly indicate that V2487 Oph is, like U Sco, ... If the in quiescence, its orbital period is likely to be shorter than a half day and the mass accretion rate is as high as or higher than yr .
www.astro.physik.uni-goettingen.de/outreach/CVConferenc... www.astro.physik.uni-goettingen.de/outreach/CVConference/abstracts/Hachisu3/Hachisu3.html
In particular, the RV81 relation shows a quick divergency of the final mass at increasing initial mass, with the most massive stars being able to build C-O cores up to the Chandrasekhar limit of 1.4 . The final fate of these stars would correspond to the occurrence of type I-1/2 supernova events, which seems not to...
www.aanda.org/articles/aa/full/2001/16/aah2446/node5.ht... www.aanda.org/articles/aa/full/2001/16/aah2446/node5.html
e) certainly. Silicon fusion is the final stage in a pre-supernova. At the point it starts producing silicon the star has only a few years left before going supernova. Fusing the silicon into iron only takes about a week. ... This question about "1)Which of these is …" was originally asked in Yahoo! Answers United States...
ca.answers.yahoo.com/question/index?qid=20091126042526A... ca.answers.yahoo.com/question/index?qid=20091126042526AA0clXi