Categories: AstronomyChandra

Supernovae Blowing Superbubbles in the Small Magellanic Cloud

At a distance of only 200,000 light years, the Small Magellanic Cloud is one of the Milky Way’s closest galactic neighbours. Thanks to its brutal treatment by our galaxy’s gravity, the galaxy has massive regions of active star formation, and regular supernova explosions. Astronomers studied the region with the Chandra X-Ray Observatory, and saw superbubbles formed by stars and supernovae working together.

The region that Chandra focused in on is known as LHa115-N19, or N19 for short. It’s an area in the Small Magellanic Cloud which is rich in ionized hydrogen gas. There are many massive stars forming in the region, and many more supernova remnants – all that remain from the short-lived stars that formed in this rich nursery.

Astronomers combined images from Chandra with data gathered in other wavelengths. And when they did this, they found evidence for so-called superbubbles. These are formed when smaller cavities created by stars and detonating supernovae combine together to create gigantic cavities.

In just one small region, the Chandra data reveals three supernovae explosions clustered together; well, the supernova remnants, anyway. There are even hints in the data that the stars were associated with one another, forming together from the same interstellar cloud, and then dying together.

Original Source: Chandra News Release

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. Here's a link to my Mastodon account.

Recent Posts

Earth’s Old Trees Keep A Record of Powerful Solar Storms

Most of the time the Sun is pretty well-mannered, but occasionally it's downright unruly. It…

1 hour ago

New Supercomputer Simulation Explains How Mars Got Its Moons

One mystery in planetary science is a satisfying origin story for Mars's moons, Phobos and…

6 hours ago

The Early Universe May Have Had Giant Batteries of Dust

The largest magnetic fields in the universe may have found themselves charged up when the…

11 hours ago

The First Close-Up Picture of Star Outside the Milky Way

Like a performer preparing for their big finale, a distant star is shedding its outer…

1 day ago

Here’s What We Know About Earth’s Temporary Mini-Moon

For a little over a month now, the Earth has been joined by a new…

1 day ago

New Study Suggests Black Holes Get their “Hair” from their Mothers

Despite decades of study, black holes are still one of the most puzzling objects in…

1 day ago