Sagittarius A East.
Sagittarius A East. Credit: X-ray: NASA/CXC/Nanjing Univ./P. Zhou et al. Radio: NSF/NRAO/VLA

Using Chandra observations Astronomers have found something unusual in the center of the Milky Way. Astronomers stated that it’s a very unusual supernova. They attract a lot of attention because of course getting to see one is a miracle for mortals like us.


They are the most powerful explosions that can happen on their own in our universe. It happens when stars explode mainly because they ran out of nuclear fuel to continue burning which results in no more production of energy heat to keep the atoms or elements inside energized and apart so here energy loses the game and gravity wins, in the end, gravity always wins, so after losing its energy the star starts to collapse due to gravitational forces and hence the core collapses and then it explodes. But not every star can go supernova there needs to be enough mass to collapse the core.

Like if we take our sun then it will die too and it’s a star too but will never go supernova because it doesn’t have enough mass, these types of supernovae are called Type 2a. The second reason for this to take place is in the binary star system. The binary star system is a system where two stars together orbit a single point. What happens in this one is that one of them which is a carbon-oxygen-based white dwarf will steal matter from the other one and once he has accumulated enough matter which is too much for it and then it explodes and goes supernova, this kind of supernovae are called Type 1a.

Using Chandra X-ray observatory scientists have discovered the remnants of a very old supernova and now it has been named Sagittarius A East(Sgr A East). It is very close to the massive black hole in the center of the Milky Way that its remnants overlap the disc of material that is orbiting our galaxy’s supermassive black hole.

Supernova Sagittarius A East (labeled).
Sagittarius A East (labeled). Credit: X-ray: NASA/CXC/Nanjing Univ./P. Zhou et al. Radio: NSF/NRAO/VLA

Researchers studied the Sgr A East for 35 days using Chandra observation, targeting the supermassive black hole and the region surrounding it. The unusual X-ray pattern led scientists to say that this can be the result of a Type 1ax supernova. Type 1ax is a class of Type 1a, Type 1a is kind of important to study space it helps scientists to measure the distance between celestial objects accurately and it is also used to study the expansion of the Universe. Because they emit the same amount of light no matter where they are in the universe, hence no change in light can help to study the change in other objects.

Scientists said that Type 1ax supernovas occur statistically at one-third of Type 1a supernovas in other galaxies and the observed supernova is Type 1ax and is younger than 2000 years then there are already two Type 1a supernovas in our plate which puts us in the group with other galaxies too. It is harder to observe our Galaxy than the other Galaxies because we live in it and solar dust blocks our vision. So any kind of discoveries in our galaxy is a thing to appreciate. This work will be published today in The Astrophysics Journal.



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