A Space Telescope Could Reveal a Black Hole's Photon Ring universetoday storybywill
This paper was submitted as part of the, an open call for large-class science mission proposals that will take place in the 2035-2050 timeline. Like space telescopes that study the cosmos in the optical, infrared, X-ray, radio and other parts of the spectrum, this concept calls for a space-based interferometer to study the physics of spacetime in the vicinity of SMBHs. As Dr. Paragi described it:
“Observing from space at very short, mm to sub-mm wavelengths will open new dimensions to VLBI. The advantages of a mission based on the THEZA concept are two-fold. On the one hand, being able to go below the wavelengths the Event Horizon Telescope [or the ngEHT], a new population of supermassive black holes would be accessible for resolved black hole shadow imaging, which is obscured for those instruments.
Overall, the team reviewed all the telescope’s elements, including antenna systems, receivers, low-noise amplifiers, local oscillators, mixers, and data transport and processing. They found that an interferometer based on the THEZA concept would achieve the three main goals of an ultra-high angular resolution astronomy mission. In short, it will be free of interference from Earth’s atmosphere and observe black holes at higher frequencies and longer baselines than ever before.
In the coming years, next-generation observatories will rely on improved detectors and data transmission technologies to provide an even more detailed picture of some of the most mysterious objects in the Universe. These include proposals like the proposed space telescope, which is expected to launch by 2030. This instrument will be equipped with a 10 m primary mirror capable of observing the cosmos in the sub-millimeter to far-infrared wavelengths.
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