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Herbig-Haro Objects

10 Jan 2019, 04:09 UTC
Herbig-Haro Objects
(200 words excerpt, click title or image to see full post)

Hubble took a look at a star formation area with what is a baby star just born (in astronomical time scales). One of the effects in the area are these Herbig-Haro objects.
Image: SA/Hubble & NASA, K. Stapelfeldt; CC BY 4.0
ESA: In this image the NASA/ESA Hubble Space Telescope has captured the smoking gun of a newborn star, the Herbig–Haro objects numbered 7 to 11 (HH 7–11). These five objects, visible in blue in the top centre of the image, lie within NGC 1333, a reflection nebula full of gas and dust found about a thousand light-years away from Earth.
Herbig-Haro objects like HH 7–11 are transient phenomena. Travelling away from the star that created them, at a speed of up to 250 000 kilometres per hour they disappear into nothingness within a few tens of thousands of years. The young star that is the source of HH 7-11 is called SVS 13 and all five objects are moving away from SVS 13 toward the upper left. The current distance between HH 7 and SVS 13 is about 20 000 times the distance between Earth and the Sun.
Herbig–Haro objects are formed when jets of ionised gas ...

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