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The give and take of mega-flares from stars

Dragon
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The give and take of mega-flares from stars Empty The give and take of mega-flares from stars

Post by Dragon Thu Jun 17, 2021 3:50 am

The long relationships between stars and the planets around them—including the Sun and the Earth—may be even more complex than previously thought.

This is one conclusion of a new study involving thousands of stars using NASA's Chandra X-ray Observatory.

By conducting the largest survey ever of star-forming regions in X-rays, a team of researchers has helped outline the link between very powerful flares, or outbursts, from youthful stars, and the impact they could have on planets in orbit.


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The give and take of mega-flares from stars 334pu7m
Dragon
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Post by Dragon Thu Jun 17, 2021 3:51 am

The give and take of mega-flares from stars Solarflares
Credit: CC0 Public Domain

The stars in the study have ages estimated to be less than 5 million years, compared to the Sun's age of 4.5 billion years.


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The give and take of mega-flares from stars 334pu7m
Dragon
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Post by Dragon Thu Jun 17, 2021 3:53 am

The give and take of mega-flares from stars The-give-and-take-of-m
Credit: X-ray: NASA/CXC/Penn State/K. Getman, et al; Infrared: NASA/JPL/Spitzer

The Lagoon Nebula, one of the star-forming regions in the latest study, is about 4,400 light years from Earth in the Milky Way galaxy where stars.

This field-of-view shows the southern portion of a large bubble of hydrogen gas, plus a cluster of young stars.

X-rays from Chandra (purple) have been combined with infrared data (blue, gold, and white) have been combined with infrared data from the Spitzer Space Telescope in this composite image.


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The give and take of mega-flares from stars 334pu7m
Dragon
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Post by Dragon Thu Jun 17, 2021 3:54 am

The give and take of mega-flares from stars The-give-and-take-of-m-1
Credit: X-ray: NASA/CXC/Penn State/K. Getman, et al; Infrared: NASA/JPL/Spitzer

RCW 120 is another star-forming region that was part of the new research.

It is slightly farther away than the Lagoon Nebula at a distance of about 5,500 light years.

This view of RCW 120, which has the same wavelengths and colors as the Lagoon composite, contains an expanding bubble of hydrogen gas, about 13 light years across.

This structure may be sweeping up material into a dense shell and triggering the formation of stars.


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The give and take of mega-flares from stars 334pu7m
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Post by Dragon Thu Jun 17, 2021 3:55 am



How did flares, or outbursts, from the young Sun affect Earth?

A new study using NASA's Chandra X-ray Observatory seeks to find out.

By studying thousands of young stars, new information has emerged.

These flares can both nurture and damage planets and their atmospheres.


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The give and take of mega-flares from stars 334pu7m

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