The Event Horizon Telescope (EHT), says high school physics teacher Mark Swaim, captured and published the first-ever supermassive black hole or the ring of light around the black hole’s shadow. Released last April 2019, the image features the light ring’s diameter of around 40 astronomical units. However, it does not have enough resolution to determine its detailed substructure or thickness.
New Research
A new analysis conducted by researchers from the Institute for Advanced Study in Princeton, New Jersey, shows that future interferometers or an assemblage of telescopes, fixed with longer baselines should be able to achieve that. This will allow astronomers to discover a black hole’s details such as mass and rotation that are concealed in the actual shape and size of the photon ring.
Mark Swaim says that according to a researcher from the Harvard-Smithsonian Centre for Astrophysics, the EHT’s captured image of the black hole in the center of the Galaxy Messier unveiled only a glimpse of the full range of complexity that should come from any black hole image.
The Role of Interferometers
The theoretical study of how nested rings make the photon ring of light unfolded new promises in the field of imaging.
What was surprising is that while the rings are almost unseen by the naked eye on even perfect images, they come off as clear and strong signals for interferometers.
Worldwide Array of Telescopes
Mark Swaim shares that the EHT is a global multitude of radio telescopes working together to form an immense virtual dish that will give the resolution required to capture the black hole in the galaxy Messier 87. By bringing in an orbiting space telescope, or fixing an instrument on the moon, astronomers would be able to increase the baseline and hone the resolution.
Mark Swaim is excited for another reason: it looks like Einstein’s theory of general relativity makes many predictions for different observations that are finally advancing within reach.
New Research
A new analysis conducted by researchers from the Institute for Advanced Study in Princeton, New Jersey, shows that future interferometers or an assemblage of telescopes, fixed with longer baselines should be able to achieve that. This will allow astronomers to discover a black hole’s details such as mass and rotation that are concealed in the actual shape and size of the photon ring.
Mark Swaim says that according to a researcher from the Harvard-Smithsonian Centre for Astrophysics, the EHT’s captured image of the black hole in the center of the Galaxy Messier unveiled only a glimpse of the full range of complexity that should come from any black hole image.
The Role of Interferometers
The theoretical study of how nested rings make the photon ring of light unfolded new promises in the field of imaging.
What was surprising is that while the rings are almost unseen by the naked eye on even perfect images, they come off as clear and strong signals for interferometers.
Worldwide Array of Telescopes
Mark Swaim shares that the EHT is a global multitude of radio telescopes working together to form an immense virtual dish that will give the resolution required to capture the black hole in the galaxy Messier 87. By bringing in an orbiting space telescope, or fixing an instrument on the moon, astronomers would be able to increase the baseline and hone the resolution.
Mark Swaim is excited for another reason: it looks like Einstein’s theory of general relativity makes many predictions for different observations that are finally advancing within reach.
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