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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 5nvklj





1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 9tpt39

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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars

Dragon
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Post by Dragon Sat Jan 15, 2022 3:15 am

Space Telescope Science Institute astronomer and data visualization expert Dr. Catherine Zucker and her colleagues have shown how a chain of events beginning 14 million years ago with a set of powerful supernovae led to the creation of the vast Local Bubble, responsible for the formation of all young stars within 500 light-years of the Sun.

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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 334pu7m

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Post by Dragon Sat Jan 15, 2022 3:16 am

1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars Image_10451-Local-Bubble
Image credit: Leah Hustak, Space Telescope Science Institute

An artist’s illustration of the Local Bubble with star formation occurring on the bubble’s surface.


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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 334pu7m

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Post by Dragon Sat Jan 15, 2022 3:19 am

1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars Sequential-bubble-768x560
Image Credit: Zucker et al 2022

This figure shows the evolution of the Local Bubble and sequential star formation at the surface of its expanding shell.

Selected time snapshots (seen from a top-down projection) are shown here. The central figure shows the present day. Stellar cluster tracebacks are shown with the coloured paths.

Prior to the cluster birth, the tracebacks are shown as unfilled circles meant to guide the eye, since the modelling is insensitive to the dynamics of the gas before its conversion into stars.

After the cluster birth, the tracebacks are shown with filled circles and terminate in a large dot, which marks the cluster’s current position.


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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 334pu7m

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Post by Dragon Sat Jan 15, 2022 3:20 am

1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars Local-Bubble-Interactive
Credit: Zucker et al 2022

This is a static screen grab of the interactive tool Zucker and her colleagues created.


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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 334pu7m

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Post by Dragon Sat Jan 15, 2022 3:21 am



A Bubbly Origin for Stars Around the Sun


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1,000-Light-Year-Wide Local Bubble is Responsible for Formation of All Nearby, Young Stars 334pu7m

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