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NASA - Poster - Acrylic - 22. Herbig-Haro 46/47 (NIRCam Image) - James Webb Space Telescope


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Printed on glossy acrylic with vibrant colours. These stars have a lot of energy to let loose!

NASA’s James Webb Space Telescope has captured a tightly bound pair of actively forming stars, known as Herbig-Haro 46/47, in high-resolution near-infrared light. Look for them at the center of the red diffraction spikes. The stars are buried deeply, appearing as an orange-white splotch. They are surrounded by a disk of gas and dust that continues to add to their mass.

Herbig-Haro 46/47 is an important object to study because it is relatively young – only a few thousand years old. Stars take millions of years to fully form. Targets like this also give researchers insight into how stars gather mass over time, potentially allowing them to model how our own Sun, a low-mass star, formed.

The two-sided orange lobes were created by earlier ejections from these stars. The stars’ more recent ejections appear in a thread-like blue, running along the angled diffraction spike that covers the orange lobes.

Actively forming stars ingest the gas and dust that immediately surrounds them in a disk (imagine an edge-on circle encasing them). When the stars “eat” too much material in too short a time, they respond by sending out two-sided jets along the opposite axis, settling down the star’s spin, and removing mass from the area. Over millennia, these ejections regulate how much mass the stars retain.

Don’t miss the delicate, semi-transparent blue cloud. This is a region of dense dust and gas, known as a nebula. Webb’s crisp near-infrared image lets us see through its gauzy layers, showing off a lot more of Herbig-Haro 46/47, while also revealing a deep range of stars and galaxies that lie far beyond it. The nebula’s edges transform into a soft orange outline, like a backward L along the right and bottom.

The blue nebula influences the shapes of the orange jets shot out by the central stars. As ejected material rams into the nebula on the lower left, it takes on wider shapes, because there is more opportunity for the jets to interact with molecules within the nebula. Its material also causes the stars’ ejections to light up.

Over millions of years, the stars in Herbig-Haro 46/47 will fully form – clearing the scene.

Take a moment to linger on the background. A profusion of extremely distant galaxies dot Webb’s view. Its composite NIRCam (Near-Infrared Camera) image is made up of several exposures, highlighting distant galaxies and stars. Blue objects with diffraction spikes are stars, and the closer they are, the larger they appear. White-and-pink spiral galaxies sometimes appear larger than these stars, but are significantly father away. The tiniest red dots, Webb’s infrared specialty, are often the oldest, most distant galaxies.

NIRCam was built by a team at the University of Arizona and Lockheed Martin’s Advanced Technology Center.

Image Processing: Joseph DePasquale (STScI), Anton M. Koekemoer (STScI)

Keywords: Nebulas, Stellar Jets

Eigenschappen / Materiaal

Acrylafdrukken zijn licht, onbreekbaar en bestand tegen temperatuurschommelingen. Door af te drukken op acryl is de reproductie krachtiger en intenser.

  • Inclusief ophangset met schroeven.
  • Schroefgat: Het midden van het gat bevindt zich op 14 mm (0,55 inch) van elke rand in elke hoek. Een gat in elke hoek - ongeacht het formaat.
  • Diameter schroefgat: 8 mm (0,31 inch).
  • Diameter van de kop van de schroef: 15 mm (0,6 inch).
  • Kristalheldere 4 mm acrylafdrukken.
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