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Home » Star forming activity that causes strong invisible winds. Spiral galaxy “NGC 4666” photographed by Hubble | sorae Portal site to space

Star forming activity that causes strong invisible winds. Spiral galaxy “NGC 4666” photographed by Hubble | sorae Portal site to space

[▲ Spiral galaxy “NGC 4666” (Credit: ESA / Hubble & NASA, O. Graur; Acknowledgment: L. Shatz)]

It is about 80 million light years in the direction of “Virgo”Vortex Milky Way “NGC 4666”As it is visible from the earth at an angle close to the side, the central part where the stars are gathered is bright.Galactic bulgeSeems a bit hidden. The image is characteristic of spiral galaxiesTourbillon armRich in dust distributed alongDust lane(Dark Lane) is projected as if it expands like a black cloud causing a storm.

According to the European Space Agency (ESA), from the core of NGC 4666Hot gas flows violently into the surrounding outer spaceThis is called. The flow of gas over the last tens of thousands of light yearsLarge windIt is called (superwind) and was born by starburst (intense star forming activity).Stellar wind of massive starsAnd of these starsSupernova explosionIt is believed to be caused by. It is not possible to confirm the super window in this image taken with visible light and infrared wavelengths, but it is said that its existence can be confirmed using x-rays and radio waves.

In NGC 4666Two supernovae in the past 10 yearsWas observed, which it was detected in 2019SN 2019yvr 」the teethA massive star with a mass 19 times that of the SunIt is believed to have been an explosion. NGC 4666 starburst, which produces massive stars one after another, is nearbyNGC 4668 」PhoneInteraction with another galaxyIs believed to have been the trigger.

The start image is“The Hubble Space TelescopeCreated from observation data from ESA’s “Wide Field Camera 3 (WFC3)”, this week’s “Invisible Galactic Gale” (strong wind in the galaxy) from ESA’s Hubble Space Telescope dated October 11, 2021. It is open to the public.

[▲ NGC 4666 (center) and its surroundings taken with visible light. The galaxy visible in the lower left is NGC 4668 (Credit: ESO / J. Dietrich)]

Related: Two Heavenly Bodies Holding Hands and Dancing. Galaxy in interaction “Arp 91” in “Serpens”

YouTube video

Image Credit: ESA / Hubble & NASA, O. Graur; Acknowledgments: L. Shatz
Source: ESA / Hubble
Phrase / Takehiro Matsumura

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