December 10, 2022

ASI captures the ghost of the giant star

The wispy structure of red and orange clouds is all that remains of a huge star that ended its life in a powerful exploding market around 11, 000 years back

A spooky spider web, marvelous dragons or wispy trails of ghosts?

What do the thing is in this image of the Vela supernova remnant?

This beautiful tapestry of colors shows the ghostly continues to be of a gigantic star, plus was captured here in amazing detail with the VLT Study Telescope, hosted at the Euro Southern Observatory’s (ESO’s) Paranal site in Chile.

The wispy structure of pink and orange clouds is all that continues to be of a massive star that will ended its life inside a powerful explosion around 11, 000 years ago. When the the majority of massive stars reach the end of their life, they often go out with a bang, in an episode called a supernova. These explosions cause  surprise waves   that move through the surrounding gas, compressing it and creating complex thread-like structures. The energy released heats the gaseous tendrils, making them shine brightly, since seen in this image.

In this 554-million-pixel image, we get an extremely comprehensive view of the Vela supernova remnant, named after the southern constellation Vela (The Sails). You could fit nine complete Moons in this entire image, and the whole cloud is certainly even larger. At only eight hundred light-years away from Earth, this particular dramatic supernova remnant is one of the closest known to us.

As it exploded, the outermost layers of the progenitor star were ejected into the surrounding gas, producing the spectacular filaments that we observe here. What remains from the star is an ua-dense ball in which the protons and bad particals are forced together into neutrons— a neutron star. The neutron star in the Vela remnant, placed slightly beyond this image to the higher left, happens to be a pulsar that will spins on its own axis at an incredible speed of more than 10 times per second.

This image is a mosaic of observations used with the wide-field camera OmegaCAM at the VLT Survey Telescope (VST), hosted at ESO’s Paranal Observatory in Chile. The 268-million-pixel camera can take images through several filter systems that let through gentle of different colors. In this particular image of the Vela remnant, four different filters had been used, represented here by a combination of magenta, blue, green and red.

The VST is possessed by The National Institute to get Astrophysics in Italy, INAF, and with its 2 . 6-meter mirror it is one of the largest telescopes dedicated to surveying the night sky in visible light. This image is an instance from such a survey: the VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+). To get more than seven years, this  survey   has mapped a considerable part of our home galaxy, enabling astronomers to better understand how stars form, evolve and eventually die.

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