James Webb Space Telescope spotted first supernova : The Tribune India


Washington, August 1

Astronomers say the powerful next-generation James Webb Space Telescope may have seen its first supernova.

According to Mike Engeser of the Space Telescope Science Institute (STScI), the object is extremely bright compared to the rest of the Milky Way.

and Webb observed the galaxy, called SDSS.J141930.11+5251593, twice, at five-day intervals; The object dimmed, just a little, over those five days — classic supernova behavior, the inverse reported.

“We suspect it is a supernova,” Engsar was quoted as saying.

“We’ll need more time series data to make a determination, but the data we have matches a supernova, so it’s a very good candidate,” he said.

The $10 billion Webb Telescope is an international program led by NASA, the European Space Agency and the Canadian Space Agency.

The real purpose of the telescope is to solve the mysteries of our solar system, look beyond the distant worlds around other stars, and investigate the mysterious structures and origins of our universe and our place in it.

“Primarily, it is exciting because we have shown that we are able to find and locate new customers with the web, which was something that JWST was not designed to do. But it is one of those things. One is what we are showing we are capable of doing in an ad-hoc way,” he said.

Webb is designed to see very deeply into small parts of the sky. The telescope’s first deep-field image, released July 12, shows an area of ​​sky that one can cover with a grain of sand held at arm’s length.

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“So the real probability that you’ll find a transient in the area you’re looking at is quite small — or at least we thought it would be small,” Engcer said. “But as you’ve probably heard, at this point every JWST region is a dark region, so there are galaxies everywhere, and now we’re thinking, oh, we might have a good chance of detecting supernovae all the time. ”

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