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Chandra Discoveries in 3D Available on New Platform

  • A collection of 3D models based on data from NASA's Chandra X-ray Observatory is available on a new platform.

  • The Voyager platform from the Smithsonian Institution allows users to explore 3D representations of objects.

  • The Chandra collection includes multiple versions of a new 3D model of the supernova remnant IC 443.

  • In this main graphic, the version of IC 443 3D model that been optimized for virtual reality is being featured.

A collection of the 3D objects from NASA's Chandra X-ray Observatory is now available on a new platform from the Smithsonian Institution. This will allow greater access to these unique 3D models and prints for institutions like libraries and museums as well as the scientific community and individuals in the public.

The Chandra X-ray Observatory is one of NASA's Great Observatories (along with the Hubble Space Telescope, Spitzer Space Telescope, and Compton Gamma-ray Observatory). Chandra, the world's most powerful X-ray telescope, is operated by the Smithsonian Astrophysical Observatory in Massachusetts.

Chandra's 3D datasets are now included in Voyager, a platform developed by the Smithsonian's Digitization Program Office, which enables datasets to be used as tools for learning and discovery. Viewers can explore these fascinating 3D representations of objects in space alongside a statue of George Washington or a skeleton of an extinct mammoth.

The only requirement to access these 3D models is a smartphone, tablet, or computer that has a current web browser. The Voyager platform enables 3D manipulation, augmented reality, or downloads of 3D printable files. There are also additional levels of information and interaction for the Chandra 3D models, including annotated tours pointing out key features on each cosmic object.

The current suite of Chandra 3D models in Voyager features stars in various phases of the stellar life cycle. Through a variety of techniques, astronomers have captured data from Chandra and other telescopes from these stars and constructed science-based simulations and 3D models of what previously had been represented as flat, two-dimensional projections on the sky.

The inclusion of the Chandra collection in Voyager coincides with the release of Chandra's latest 3D model: a stunning supernova remnant (remains of an exploded star) called IC 443 located about 5,000 light years from Earth. Details of the model are included in a paper published in the journal Astronomy & Astrophysics led by Sabina Ustamujic from the National Institute for Astrophysics (INAF) in Palermo, Italy.

There are several versions of this 3D model of IC 443. In the first, Ustamujic and colleagues produced an interactive version of IC 443. The shock wave (gray) and the remains of the star (red, yellow, green, and blue) have collided with the gas cloud and are now passing through it. The different colors for the star's remains show the range of velocities for their motion away from the center of the explosion. The model is combined with a visible light image of this field of view from the Focal Pointe Observatory, a private telescope run by amateur astronomer Bob Franke.


Navigate & interact with this 3D model (at Sketchfab)

A comparison of the 3D model with X-ray data from ESA's XMM-Newton shows that the collision of the shock wave and debris with the gas cloud is the main factor responsible for the unusually complex appearance of the X-ray emission from IC 443.

The 3D model also gives important information about the supernova explosion that formed IC 443. It shows that the explosion was weaker than most supernovae and that it occurred about 8,000 years ago, in Earth's time frame. In addition, this work provides new evidence that a source of X-rays discovered with Chandra (blue in the inset image) contains the neutron star that formed when a massive star collapsed and exploded to create IC 443.

A new adaptation of the 3D model, which has been optimized for virtual reality (VR), is featured in the main graphic. In this 3D version of IC 443, the outer blast wave of the explosion is bright blue, while the outer layers of the star are in reds and oranges. Chandra's data of the nebula of particles and energy around the neutron star is found at the center of this VR version (cyan).


Navigate & interact with this 3D model (in web browser)

In a version for Voyager, the 3D model has been transformed so that it is more suitable for augmented reality as well as 3D printing, which requires connected structures. The Voyager IC 443 has the central region of the debris field in blue with the shockwave in purple. A full list of the Chandra 3D objects, along with information about how to view and print, is available at https://chandra.si.edu/3dprint/.


Navigate & interact with this 3D model (on Voyager Platform)

IC 443 joins other supernova remnants such as Cassiopeia A, Tycho, and the Crab Nebula in the Chandra contribution to the Voyager platform. Other stages of stellar evolution, as well as the Chandra spacecraft itself, are also available in the Chandra contribution.

To access the Chandra supernova remnants and the rest of the Voyager content, visit https://3d.si.edu/collections/chandra

A copy of the Astronomy & Astrophysics paper describing this work is available at https://www.aanda.org/articles/aa/abs/2021/05/aa39940-20/aa39940-20.html (a preprint version can be found at https://arxiv.org/abs/2012.08017). In addition to Ustamujic, the authors are Salvatore Orlando (INAF Palermo), Emanuele Greco (INAF Palermo and University of Palermo, Italy), Marco Miceli (University of Palermo), Fabrizio Bocchino (INAF Palermo), Antonio Tutone (University of Palermo), and Giovanni Peres (University of Palermo).

NASA's Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory's Chandra X-ray Center controls science from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

 

Fast Facts for IC 443:
Credit  IC443 Simulation: INAF/S. Ustamujic et al.; X-ray data: NASA/CXC/MSFC/D.Swartz et al.; VR model: NASA/CXC/Brown Univ./A.Dupuis et al.
Release Date  May 20, 2021
Category  Neutron Stars/X-ray Binaries, Supernovas & Supernova Remnants
Coordinates (J2000)  RA 6h 17m 05.00s | Dec +22° 21´ 27.00"
Constellation  Gemini
Observation Date  February 6 & 8, 2012
Observation Time  42 hours 13 minutes (1 day 18 hours 13 min)
Obs. ID  2518
Instrument  ACIS
References Ustamujic et al. 2021, accepted, A&A; arXiv:2012.08017
X-ray
Distance Estimate  About 5,000 light years
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