Tycho's Supernova composite image highlighting possible shock wave carrying material from companion star

Autor:

NASA/CXC/Chinese Academy of Sciences/F. Lu et al.

Credit:

http://chandra.harvard.edu/photo/2011/tycho2/ (image link)

Krótki link:

https://www.plwiki.pl/b/6b4f9

źródło:

Wikimedia Commons

Wymiary:

3600 x 3600 Pixel (5732701 Bytes)

Opis:

This Chandra image of the Tycho supernova remnant contains new evidence for what triggered the original supernova explosion. Tycho was formed by a Type Ia supernova, a category of stellar explosion used in measuring astronomical distances because of their reliable brightness. In the lower left region of Tycho is a blue arc of X-ray emission. Several lines of evidence support the conclusion that this arc is due to a shock wave created when a white dwarf exploded and blew material off the surface of a nearby companion star. This supports one popular scenario for the trigger of a Type Ia supernova. Understanding the origin of Type Ia supernovas is important because they have been used to determine that the Universe is expanding at an accelerating rate.

Licencja:

Public domain