October 03, 2011
Lots of Supernovas
News came out in an article from the Science Daily website that a group of Astronomers at the Chalmers and Onsala Space Observatory discovered as many as seven supernova in a galaxy called Arp 220, located 250 million light years away. The article stated that this galaxy has long been known as a galaxy that can create a lot of stars very efficiently. It would follow then that these stars need to die, and therefore Arp 220 would be home to a lot of supernovas. And that is indeed what these Astronomers found. To give some perspective as to how many supernova are in Arp 220 compared to our Milky Way Galaxy Rodrigo Parra, an astronomer at the European Southern Observatory, gave some values. He stated, "we estimate that a star explodes in Arp 220 once every quarter. In the Milky Way, there is only one supernova per century."
Just another fascinating galaxy in our universe.
You can read the full article at:http://www.sciencedaily.com/releases/2011/09/110930071705.htm
Posted by sjbar at October 3, 2011 01:24 PM
It is so fascinating how different galaxies can have such different characteristics.I think this just shows us that there is so much out there that we don't even know about and that we can't even begin to comprehend.
Posted by: chazr at October 4, 2011 01:51 PM
It truly is intriguing how we can observe all these phenomena in the universe and learn about our place in it as well. Also, it is a bit mind bending to think that whenever we look into the sky, we are taking a look into the past as the light from distant stars takes thousands of years to reach us.
Posted by: jeffsong at October 4, 2011 11:54 PM
Anywhere inside this galaxy must be extremely inhospitable and dangerous, as supernovas are supposed to be huge energy radiators. It's like a huge firework, you can appreciate it with your eyes, but just can't touch it.
Posted by: wangrt at October 16, 2011 06:49 PMLogin to leave a comment. Create a new account.